Gigabyte Z77 Overclocking Guide

vDroop

Gigabyte Z77 Overclocking Guide

vDroop

Yes we know we promised to stick to the important stuff, and this is very much important. Without vDroop adjustment you'll be banging your head against the wall, which isn't conducive to an enjoyable experience. The basics of overclocking are to attain the maximum speed for the smallest voltage. So there always reaches a point at which you have a system running at a certain speed at a certain voltage, which is just enough to keep it running but with less voltage the overclock will fail and the system freeze or reboot.

vDroop is when, under loading, the amount of voltage being delivered is less than required. Thankfully we can demonstrate vDroop perfectly. We have manually set the CPU voltage to 1.13 (we'll explain why on the next page) and then started OCCT, which will induce the voltage drop and show you clearly why vDroop is a very bad thing, especially for stable overclocks, and your forehead.

The stages of the loadline calibration are usually named differently on different brands so you'll have to adapt, but the end result is that you want as much loadline calibration as is available to you. If you're without the manual, or the manual is unclear, then by doing what we have done today which is set your voltage, adjust the loadline, run OCCT and view the Voltage-CPU-VCore image which help you narrow it down to the setting you require.

Of course you can always ask in our friendly forums too, but we recommend getting used to adjusting a BIOS option, saving, booting, running OCCT and adjusting. Largely because you'll be doing a lot of it on the next page, but also because this is the shortest sane overclocking guide around and we've already cut all the corners for you.

Default

On our Gigabyte motherboard it's labelled Vcore loadline calibration. You'll usually find vDroop under loadline calibration if it isn't labelled vDroop already. Set to 'auto' you actually end up with no loadline calibration at all. With everything set as defaults except for the CPU Vcore set to 1.13v as noted above.

As you can see from the graph on the right, the moment the system comes under loading the CPU Vcore drops from 1.13v to 1.05v. For a standard CPU it's not the end of the world, but as we're not here for standard CPUs and by the end we'll be adding less than the 0.08v to attain our stable overclock, you can see how this drop would be fatal.

OC3D Intel Overclocking Guide     OC3D Intel Overclocking Guide  

Low

There are many options for controlling the vDroop with the UD5H, but as we'll soon see you only need one. Indeed we've often commented that loadline calibration should be on all the times by default and if there is a BIOS option it should only be on or off, rather than the multi-stage affair we normally encounter. With the loadline calibration set to 'Low' we drop from 1.13 to 1.08, which is better than before but not perfect.

OC3D Intel Overclocking Guide     OC3D Intel Overclocking Guide  

High

High is getting much better, but there is still a hefty dropoff from 1.13v to 1.1v.

OC3D Intel Overclocking Guide     OC3D Intel Overclocking Guide  

Extreme

Finally we get to Extreme, which really is misnamed. Instead of Extreme it should be labelled 'How it should be done'. As you can see as soon as the system comes under loading the voltage remains rock solid. Exactly what we need for a stable overclock.

OC3D Intel Overclocking Guide     OC3D Intel Overclocking Guide  

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Most Recent Comments

26-02-2013, 18:17:35

tinytomlogan
If you own an Intel CPU and want to have a go at your first overclock, we've got just the guide for you.


http://www.overclock3d.net/gfx/artic...113811606l.jpg


Continue Reading

26-02-2013, 20:00:20

MrKambo
actually just watched all this through!

very informative mate, i think you done really well in going over the most important stuff for people who are 'new' to overclocking and want somewhere to start from!

26-02-2013, 20:13:55

GoldenAppleTree
Very nice I have learned a lot

26-02-2013, 20:34:08

Luscious
Noob question - how do you get around the Welcome screen and windows sound?

26-02-2013, 20:39:48

Genesius
do you mean the windows 7 '4 spinning balls that turns into the windows logo' thing or the icon where your name is?

4 spinning balls thing=
start
type 'system configuration'
click 'boot' tab at top
tick the box marked 'no GUI boot'
restart.

if you ever want it back, simply untick.

as for the user log in bit.

delete other users and passwords.

there is a work around but i cant remember it off the top of my head as its very late, so just use google. as i remember its in regedit and its something like 'user control password'. anyway dont mess in regedit until you know EXACTLY what to change.

26-02-2013, 22:08:07

dugdiamond

26-02-2013, 22:41:30

Kazuya
Great read and very informative, enjoyed the video as well. Keep up the great work boys!

26-02-2013, 23:33:20

dre92
Anyone, please help.. I am a complete noob and I have some questions to ask. First of all, I want to say that I find this overclocking guide is very helpful, thanks to Tom . Now before I ask my questions, let me tell you my specs:

i5 3570k
AsRock z77 extreme4
CM Hyper 212 Evo (push-pull fans)
Arctic Cooling MX-4
Patriot Viper 3 DDR3 1600MHz (9 9 9 24) 2x4GB
HIS 7950 IceQ
Seasonic G-650 80+Gold
Seagate 2TB SATA3 7200RPM
NZXT Phantom 410 (2 front intake fans, 1 rear and 1 top exhaust fans)

The AsRock Bios is a bit different, but I tried my best to set everything to be the exact same with Tom's settings except the CPU core voltage. I managed to get 1.080 volt at stock. When I tested at 4.0 GHz with 1.125 volt, OCCT stopped running after 8 minutes. My system didn't crash, temps are still normal I guess (75C max temp, 30C ambient temp) but OCCT just stopped running and said "Error Detected ... ". Is this a common thing with OCCT showing that my CPU needs more voltage? Or is there any other factor?
Right now, I am testing my CPU at 4.0 GHz with 1.150 volt, and OCCT has been running for 12 minutes. My target is 4.2 GHz, so I want to know whether I am doing the right thing.

27-02-2013, 02:29:12

DrYuri
I also have i5 3570k but i overclocked it to 4.2 using auto voltage with quite high negative offset. That gives me to 1.163 when undrer stress but drops down to 0.9 when system is just idling. That is also fine i assume?

27-02-2013, 04:45:33

tinytomlogan
Quote:
Originally Posted by dre92 View Post
Anyone, please help.. I am a complete noob and I have some questions to ask. First of all, I want to say that I find this overclocking guide is very helpful, thanks to Tom . Now before I ask my questions, let me tell you my specs:

i5 3570k
AsRock z77 extreme4
CM Hyper 212 Evo (push-pull fans)
Arctic Cooling MX-4
Patriot Viper 3 DDR3 1600MHz (9 9 9 24) 2x4GB
HIS 7950 IceQ
Seasonic G-650 80+Gold
Seagate 2TB SATA3 7200RPM
NZXT Phantom 410 (2 front intake fans, 1 rear and 1 top exhaust fans)

The AsRock Bios is a bit different, but I tried my best to set everything to be the exact same with Tom's settings except the CPU core voltage. I managed to get 1.080 volt at stock. When I tested at 4.0 GHz with 1.125 volt, OCCT stopped running after 8 minutes. My system didn't crash, temps are still normal I guess (75C max temp, 30C ambient temp) but OCCT just stopped running and said "Error Detected ... ". Is this a common thing with OCCT showing that my CPU needs more voltage? Or is there any other factor?
Right now, I am testing my CPU at 4.0 GHz with 1.150 volt, and OCCT has been running for 12 minutes. My target is 4.2 GHz, so I want to know whether I am doing the right thing.
Its all in the guide.... You need more volts. Might want to think about a better cooler too. (assuming youve done everything I said in the guide)

27-02-2013, 05:27:21

seumasbeathan
Quote:
Originally Posted by dre92 View Post
Anyone, please help.. I am a complete noob and I have some questions to ask. First of all, I want to say that I find this overclocking guide is very helpful, thanks to Tom . Now before I ask my questions, let me tell you my specs:

i5 3570k
AsRock z77 extreme4
CM Hyper 212 Evo (push-pull fans)
Arctic Cooling MX-4
Patriot Viper 3 DDR3 1600MHz (9 9 9 24) 2x4GB
HIS 7950 IceQ
Seasonic G-650 80+Gold
Seagate 2TB SATA3 7200RPM
NZXT Phantom 410 (2 front intake fans, 1 rear and 1 top exhaust fans)

The AsRock Bios is a bit different, but I tried my best to set everything to be the exact same with Tom's settings except the CPU core voltage. I managed to get 1.080 volt at stock. When I tested at 4.0 GHz with 1.125 volt, OCCT stopped running after 8 minutes. My system didn't crash, temps are still normal I guess (75C max temp, 30C ambient temp) but OCCT just stopped running and said "Error Detected ... ". Is this a common thing with OCCT showing that my CPU needs more voltage? Or is there any other factor?
Right now, I am testing my CPU at 4.0 GHz with 1.150 volt, and OCCT has been running for 12 minutes. My target is 4.2 GHz, so I want to know whether I am doing the right thing.
99.9% of the time if an overclock isn't stable, you just need more volts

27-02-2013, 06:46:55

Lystfiskern
Nice video as always Tom. The importance of manual voltage settings wasnt totally new to me but great to see it examplified like that.

OK so Im a total noob to overclocks. A question that maybe could be answered in a general term.

Is there such a thing as a "optimal" middle of the road percentwise overclock (100% OC beeing the max I can get out of it) to both gain a better performance out of my cpu without hurting the lifetime of the chip to much? (Yes I know its gonna depend on the chip so noone really could say- but im after more of a broad ballpark number....)

27-02-2013, 06:49:50

woodcj
I also used an ASrock board, instead of keeping it at a constant voltage I've increased the turbo voltage so rather than letting the board decide what it needs for the clock you still set it to a max just when it's not doing anything it still runs at a lower voltage.

Just wondering if you think it'll make the cpu last a bit longer?

27-02-2013, 08:06:28

Bennewton686
Got my i7 3770k on a gigabyte Z77-UP7 mobo stable 4.5ghz @ 1.2v but I'm using samsung green low profile ram that won't overclock past 1866 regardless of timings/voltage. Previously I've overclocked this exact ram on an asus board easily to 2133+ so my question is has anybody had a similar issue with this type of ram on a gigabyte board? I also have the latest bios and still not working, must be a bios issue tho right?
Many thanks

Ben

27-02-2013, 08:34:44

AndyM95
In the video Tom leaves turbo on, I don't see why. Surely it wouldn't make any difference so you might as well disable it?

27-02-2013, 08:36:58

tinytomlogan
Quote:
Originally Posted by AndyM95 View Post
In the video Tom leaves turbo on, I don't see why. Surely it wouldn't make any difference so you might as well disable it?
If I disable turbo on the UP4 it wont overclock at all. Messed up indeed but I had to show you how to do it with the board Ive got.

27-02-2013, 09:59:34

AndyM95
Quote:
Originally Posted by tinytomlogan View Post
If I disable turbo on the UP4 it wont overclock at all. Messed up indeed but I had to show you how to do it with the board Ive got.
Does that apply to all Gigabyte Z77 boards? I have the UD5.
What voltage would you recommend keeping my 2500K below? Some people say 1.35V, others say 1.4V so it would be nice to have a definitive answer. Cheers!

27-02-2013, 10:09:29

Luscious
Quote:
Originally Posted by Genesius View Post
do you mean the windows 7 '4 spinning balls that turns into the windows logo' thing or the icon where your name is?

4 spinning balls thing=
start
type 'system configuration'
click 'boot' tab at top
tick the box marked 'no GUI boot'
restart.

if you ever want it back, simply untick.

as for the user log in bit.

delete other users and passwords.

there is a work around but i cant remember it off the top of my head as its very late, so just use google. as i remember its in regedit and its something like 'user control password'. anyway dont mess in regedit until you know EXACTLY what to change.
Yeah, it's the part after the spinning doodad. Tried the first tip but that still leaves the welcome screen there. Googled a few options but they don't work either. I'm guessing it's a registry tweak of some sort.

At the risk of hijacking the thread, is it possible to have Tom shed light on this.

27-02-2013, 12:11:56

Lystfiskern
I say keep it OC not regtweaks.

27-02-2013, 12:51:59

Slaqs
Hello everyone, I am very new to overclocking but I really want to get started. This guide was very helpful with the basics but my bios is so completely different from the one used that I am a little lost. First of all my specs are:
i7-3770K
Intel DZ77RE-75K Extreme board
Galaxy GTX 680
32 gigs of G.Skill X series 1600
Corsair AX 850 PSU
Corsair H70 Liquid CPU Cooler
Corsair Force GT 240 GB ssd

I tried to follow the guide pretty closely and I was able to adjust the voltages but there did not seem to be options to remove the auto settings and I think the board is just automatically re-adjusting things. I tried moving the multiplier up to 4.2 ghz but when I ran CPUZ it said it was still running at 3.9. I ran OCCT with the voltage at 1.100 and it was fine at stock but I am having trouble figuring out how to move up the multiplier on this board. Any suggestions or help would be greatly appreciated.

27-02-2013, 12:58:36

BeyondNight
I have an Odd issue with my UD3H, i cant change the LLC in the Bios, its just stuck on AUTO, but i can in the 3DPower Application in windows, but every time the computer cold boots the LLC i set in the Application gets reset.

Anyone dare to take a guess as to what it might be ?

P.s. when i do enable the LLC in the Application it does work.

27-02-2013, 16:29:47

ryanroo
first off cheers Tom you are a legend! i have been pussy footing about for months about overclocking. i didnt have a clue and i was too scared to try!. today i watched this video and grew a set of balls.

my rig...

i5 3570k
z77x-d3h
Kuhler h20 620
cm 700w psu
8gb corsair vengence
gigabyte HD 7950


im sitting @ 4.2ghz on 1.2v and my highest temp is 71. its stable im now opening a beer to celebrate!

i think i will leave it at that for the time being. i will perhaps look at a better cooler in the future then push it futher.

27-02-2013, 16:32:24

TTucker
Great video learnt a great deal, managed to get mine to 4.4ghz at 1.085v in the bios

Spec:
Asus P8z77 V Premium
I7 3770k
Corsair Dominator platinum 16gb 2400 (2x8)
Corsair Ax1200i
Corsair H100i Sp120 performance push/pull
Samsung 840pro 256gb

27-02-2013, 18:20:45

Ghost_X
Whats the max voltage anyone should put into their CPU 3570k. I have an overkill amount of rads in my water-cooling loop. It is keeping my current x6 1100T @ 3750MHz @ 1.332V (auto) at 21C at the core and 34C at the socket. (Might be the broken temp sensors on the x6 but its very cool anyway).

I'm not pushing that x6 any further because I an getting my 3570k soon anyway so there is no need.

So anyway. Whats the highest voltage I can put a 3570k to to not damage it significantly. And what clocks can I be >>expecting<< at said voltage. Will be using an AXi PSU and z77 Maximus V Forumla on it so I expect that should give good power to the CPU.

-----------------------------------------------------

I also wanted to ask if ttl could make an overclocking guide on a watercooled GPU. Preferably a 7970 because they overclock well. What is the max voltage on that without doing any damage? (Temps ignored).

Thanks!

27-02-2013, 19:36:52

Greenback
there is never overkill on rads only future proofing

tom that was very useful you changed a lot less bits in bios then another guide I read

27-02-2013, 20:16:26

alite2000
Good thing there is a video

"I DON'T DO READING"

27-02-2013, 21:44:33

juan_rugge
Hello from Argentina!!

First they all, forgive my English, is not very good..

I found the guide very helpful, great work Tom. Am a noob in OC, new in the forum, and this morning i made my first CPU OC! My target is 4.2 or 4.3 Ghz because my heatsink is not very good, but I think can handle that OC, until I get my hands into something more decent, in this moment, imports here are complicated :S. My rig is:

i7-3770k
ASUS Maximus V Formula
Kingston 4x2GB 1333 9-9-9-24
ASUS GTX 680 DCU2
Heatsink don't know the name, a friend gave it to me, it's like a CollerMaster Hyper TX3, small but works..
PSU Thermaltake TR2 RX 850w
Windows 7 ultimate 64 bits Update
Bios Update

I have two problems: a) the vcore it's not stable, i have sametimes vdroop (-0.010v), sametimes overvoltage (+0.015v) right now I have a setting of 4.2ghz 1.140v, but when I check on CPU-Z, OCCT or ASUS AI Suite II, Vcore is 1.155v and makes small changes, like 1.144v, 1.150v, 1.158v when stress the system (this happen with 1.140, 1.170 or 1.200 always, at almost the sames ups and downs), so i go and check the Vcore loadline calibration, the Maximus V Formula has 4 sets:

Regular: high Vdroop
Medium: medium Vdroop
High: low Vdroop
Ultra High: here is where I have the problem of Vdroop and overvoltage
Extreme: just more overvoltage

I have disable C1E, C3/C6, EIST.. don't know where could be the problem.

b) temperature readings, I start using OCCT, and the idle temperatures call my attention, were very high, 25 degrees above ambient (ambient temperature read from a very accurate mercury thermometer), check in AI Suite II and temp was 10°C above ambient, download RealTemp and is the same as AI Suite II, so check in the bios and was 10°C above ambient.. I am having a problem with OCCT? Can I trust on RealTemp?

Thanks for the help and again, forgive my English LOL..

27-02-2013, 23:13:19

mjl4878
Loved the video and just starting to go through it with my system. So far from what I can see, on the stock test, after dropping voltage to 1.15v I'm running the occt test now. Seems to have maxed out in some of the phases of the test as high as 58 which seems like it might be starting out a little on the high side but we'll see.


System specs:
Z77MX-UD3h
2600k
H80i
Kingston Hyper X 4x4gb 1600 9 9 9 27
Samsung 840 Pro
GTX 670 FTW

28-02-2013, 03:24:07

Warchild
Tom your are the f**king dogs b****cks!

Took your guide as a fantastic setup to delve into my sabertooth Z77 board and incorporate as close as I could to match your settings.

I have managed to tweak my i5 3570k to 4.5ghz and maintain it at 1.18volts. Originally I thought I had bummed out in the cpu lottery contest, but now I beg to differ. I had a general idea of overclocking before, but could not surpass 4.4 without pumping a stupidly high voltage (1.47Volts iirc). Personally I'm happy with the result and don't want to push it more. But seriously, superb walkthrough and good luck to the rest of you with our OCing.

As I write this my prime95 has been running flat out for 2hours. Will let it keep going while I'm at work and hopefully I can get home to see it still rocking strong. Looking at RealTemp it was currently at 68C. (watercooled)

28-02-2013, 03:37:41

Master&Puppet
Quote:
Originally Posted by Ghost_X View Post
Whats the highest voltage I can put a 3570k to to not damage it significantly. And what clocks can I be >>expecting<< at said voltage. Will be using an AXi PSU and z77 Maximus V Forumla on it so I expect that should give good power to the CPU.

-----------------------------------------------------

I also wanted to ask if ttl could make an overclocking guide on a watercooled GPU. Preferably a 7970 because they overclock well. What is the max voltage on that without doing any damage? (Temps ignored).

Thanks!
Under a water cooled setup around 1.3v - 1.35v if temperatures are decent.
Clocks will depend on the silicon lottery but I'd expect 4.5GHz and higher typically.
The heat issue is related to the chip design as well as the amount of cooling you have. After a certain voltage (1.35v+) the chip can't rid itself of enough heat to keep it cool.

For a AMD 7950/7970 under water I'd look at 1.2v - 1.3v on the core.

Quote:
Originally Posted by Greenback View Post
there is never overkill on rads only future proofing
Not really true. Energy consumption is decreasing with each generation of tech so you need less and less as time moves on.

28-02-2013, 09:27:55

king12
easy dudes,
I'm trying to under voltage my new rig but my mobo is hell bent on oc everything.
any ideas on what i should and shouldn't be tinckering with?
cheers

28-02-2013, 09:40:24

tinytomlogan
Quote:
Originally Posted by king12 View Post
easy dudes,
I'm trying to under voltage my new rig but my mobo is hell bent on oc everything.
any ideas on what i should and shouldn't be tinckering with?
cheers
Watch the video.... everything is in there. Your mobo does allow undervolting if you set it up right.

28-02-2013, 12:07:30

king12
hey mr logan,
i i have set the cpu voltage to 1.1v
however the noew turbo speed is 3.7ghzm i've also changed the load calibration to extreme.
However the uefi bios has a 'ez' mode, which guves 3 options, low power, normal powr ans 'asus' optimal.
does it matter which of these i choose?
and i have one core that reads 1.5c when loaded
cheers

28-02-2013, 13:52:31

Ghost_X
Any luck on the 79X0 watercooled overclocking guide?

28-02-2013, 15:49:02

Makis
Hi Community this is my first postage here on the overclock3d forum
Thanks for the nice overclocking guide but a few questions specially to my rig remained. So first i mention my rig:
I7-2600K @stock on auto 1.284v cooled with an H80i
G1 Killer Sniper 3 Z77 Bios F8J( Newest available
8 GB Corsair Dominator Platinum 1600 MHZ CL9
Gigabyte Gtx 670 OC
Samsung Pro 128 GB

So i would like to make an oc try, so first i have to detect the minimum voltage the cpu can handle to run, as i said 1.284 is auto in which steps do you suggest starting with?
Isnt a bit too much 1.28v for stock?
I would be very if you have suggestions how to start.
Thanks

28-02-2013, 18:54:57

TTucker
Quote:
Originally Posted by Makis View Post
Hi Community this is my first postage here on the overclock3d forum
Thanks for the nice overclocking guide but a few questions specially to my rig remained. So first i mention my rig:
I7-2600K @stock on auto 1.284v cooled with an H80i
G1 Killer Sniper 3 Z77 Bios F8J( Newest available
8 GB Corsair Dominator Platinum 1600 MHZ CL9
Gigabyte Gtx 670 OC
Samsung Pro 128 GB

So i would like to make an oc try, so first i have to detect the minimum voltage the cpu can handle to run, as i said 1.284 is auto in which steps do you suggest starting with?
Isnt a bit too much 1.28v for stock?
I would be very if you have suggestions how to start.
Thanks
Watch the video.... everything is in there.

28-02-2013, 19:41:17

seumasbeathan
Quote:
Originally Posted by Makis View Post
Hi Community this is my first postage here on the overclock3d forum
Thanks for the nice overclocking guide but a few questions specially to my rig remained. So first i mention my rig:
I7-2600K @stock on auto 1.284v cooled with an H80i
G1 Killer Sniper 3 Z77 Bios F8J( Newest available
8 GB Corsair Dominator Platinum 1600 MHZ CL9
Gigabyte Gtx 670 OC
Samsung Pro 128 GB

So i would like to make an oc try, so first i have to detect the minimum voltage the cpu can handle to run, as i said 1.284 is auto in which steps do you suggest starting with?
Isnt a bit too much 1.28v for stock?
I would be very if you have suggestions how to start.
Thanks
If you watch the video and give the guide a good read then all your questions will be answered

01-03-2013, 04:06:24

juan_rugge
a little help please.. what could be changing my Vcore? i also have one core that reads 1.5c under stress on OCCT, temperatures not working at all

01-03-2013, 04:08:38

juan_rugge
sorry

01-03-2013, 04:11:03

juan_rugge
Quote:
Originally Posted by juan_rugge View Post
Hello from Argentina!!

First they all, forgive my English, is not very good..

I found the guide very helpful, great work Tom. Am a noob in OC, new in the forum, and this morning i made my first CPU OC! My target is 4.2 or 4.3 Ghz because my heatsink is not very good, but I think can handle that OC, until I get my hands into something more decent, in this moment, imports here are complicated :S. My rig is:

i7-3770k
ASUS Maximus V Formula
Kingston 4x2GB 1333 9-9-9-24
ASUS GTX 680 DCU2
Heatsink don't know the name, a friend gave it to me, it's like a CollerMaster Hyper TX3, small but works..
PSU Thermaltake TR2 RX 850w
Windows 7 ultimate 64 bits Update
Bios Update

I have two problems: a) the vcore it's not stable, i have sametimes vdroop (-0.010v), sametimes overvoltage (+0.015v) right now I have a setting of 4.2ghz 1.140v, but when I check on CPU-Z, OCCT or ASUS AI Suite II, Vcore is 1.155v and makes small changes, like 1.144v, 1.150v, 1.158v when stress the system (this happen with 1.140, 1.170 or 1.200 always, at almost the sames ups and downs), so i go and check the Vcore loadline calibration, the Maximus V Formula has 4 sets:

Regular: high Vdroop
Medium: medium Vdroop
High: low Vdroop
Ultra High: here is where I have the problem of Vdroop and overvoltage
Extreme: just more overvoltage

I have disable C1E, C3/C6, EIST.. don't know where could be the problem.

b) temperature readings, I start using OCCT, and the idle temperatures call my attention, were very high, 25 degrees above ambient (ambient temperature read from a very accurate mercury thermometer), check in AI Suite II and temp was 10°C above ambient, download RealTemp and is the same as AI Suite II, so check in the bios and was 10°C above ambient.. I am having a problem with OCCT? Can I trust on RealTemp?

Thanks for the help and again, forgive my English LOL..
Quote:
Originally Posted by juan_rugge View Post
a little help please.. what could be changing my Vcore? i also have one core that reads 1.5c under stress on OCCT, temperatures not working at all
the third lol

01-03-2013, 09:48:03

Josh Weston
Can't view the images, dude. Too small. Use a site such as http://imgur.com to upload and embed the images using [IMG] tags.

01-03-2013, 09:50:40

ugiboy
I realized that, have removed them & will be adding new ones shortly. I deleted my original post as Josh said the images were too small so I will put my results, thoughts & screenshots below & see what guys think. I was surprised, but I am not sure if I understand them correctly?

Great Video & written review as always. I watched & read them both twice. Whenever i have overclocked before on Intel (Only moved from the reds about six months ago) I have always let Mobo adjust the voltages on auto due to not being confident enough for manual adjustments. I decided to the same again this time just so I could get an idea of how the voltages went up or down during the OCCT tests. For this reason I left one minute idle time at the start of the tests and the five minute after. That apart I followed Tom's settings and ran it for thirty mins. My rig componemts are Asrock X79 extreme11, I7 3930K, GTX590's x 2 in quad SLI, Corsair Vengeance 1600Mhz 32gb (8x4Gb), Kingston Hyper X 120Gb SSD's x2 (Raid0), CPU & GPU's are custom W/Cooled in Caselabs STH10 on two separate loops. Have not put PSU, HDD & other components as I did not think they are relevent. Right, I overclocked my CPU using Asrocks AXTU app. To 4.2Ghz as a starting point (Normally I run it @ 4.4Ghz.) by changing the multiplier to 44 and everything else on auto apart from the C states of which I disabled all of them. With the volts on "Auto" which is 1.245 I started OCCT, for the first minute voltages varied from 1.239 to 1.256. After the first minute the voltage dropped to between 1.18 & 1.19 all the way through the test this was the only voltage changes. After 25 mins the 5 min "Idle time" kicks in, as soon as this happened the voltage went back up to between 1.239 & 1.265. I am not sure what to make of these results but, if my understanding is correct it vindicates what the Video & written review are saying about the preset voltage on my motherboard is set too high???? I have added some screenshots and would like to hear what some of you expert experienced guys think. Thanks for reading & I look forward to reading what you guys have to say.
http://forum.overclock3d.net/attachm...1&d=1362261414

http://forum.overclock3d.net/attachm...1&d=1362261414

http://forum.overclock3d.net/attachm...1&d=1362261414

http://forum.overclock3d.net/attachm...1&d=1362261414

01-03-2013, 14:05:17

Volume
I can use this guide for my Z68 and 2600k, or there is something else I need to know?

01-03-2013, 14:21:30

RedDotFire
Quote:
Originally Posted by Volume View Post
I can use this guide for my Z68 and 2600k, or there is something else I need to know?
No problem, you can use this guide.

01-03-2013, 14:53:34

Scoob
Nice basic guide Tom...well, I say basic but it's likely all most people will ever need unless they want to start getting crazy lol.

I actually watched this guide in full, then overclocked using Tom's methods on my ASUS P8Z68-V Pro with 2500k and the settings translate across nicely from the Gigabyte board Tom used.

Interestingly, this is NOT the way I usually overclock, I'm an offsetter myself, plus I preserve all the power states etc. so my clock speeds are dynamic. With Tom's method I managed the exact same level of overclock & stabiliy pretty easily. I had the same CPU vCore reported under OCCT Linkpack load, though of course at idle my overclock settles down to 1600mhz on the CPU with around 1v on the CPU vCore. The joy of power states lol.

I could push a fair bit further on my overclock as I have excellent water cooling. However, I did NOT win the silicon lottery by a long margin with my CPU, sadly my Core #3 is pretty damn weak compared to the others, so I need a higher vCore than I'd like for that weaker core. Still, 4.6ghz for a 24/7 OC isn't to be sniffed at, and it gives me a healthy boost in many CPU demanding tasks.

It used to be that the first thing you disabled when overclocking on socket 775 was the power save states. With my Q6600 @ 3.6 I had to do this to get any stability. With Sandy Bridge I noticed that keeping all the power stuff enabled hasn't impacted my peek stable clocks at all, which is pretty cool. Erm, quite literally

Oh, the undervolt at stock to get your base line is a great way to start. I thought I was the only person doing that! People used to think I was daft, but my OC's worked & lasted better than theirs *smug* As for the "Auto" overclockers out there, I think you REALLY showed how badly motherboards get the real voltage requirements wrong in that mode - quite shockingly so.

Really useful guide that has directly given people additional FREE performance, which can't be bad!

Scoob.

01-03-2013, 14:54:51

RedDotFire
I have a problem on my secondary rig, OCCT only allow me to "use" 8.3GB RAM (I have 16G If i try to use more it just says "Finished" and doesnīt start and when iīm running it at 8.3GB the OS complains that itīs to title free memory (still have 5GB+ och free memory!) and sometimes I get "Out of memory" and if i donīt shut down OCCT the system just freezes (not even blue screen)
The other spec:s are Gigabyte GA-P55-USB3
I5 750 @ stock (was running oc @ 3.2GHz but loaded optimized defaults due to this problem)
16 GB 1600MHz corsair vengeance 9-9-9-24 4x4GB (now at 1333 due to "opt defaults")
I know itīs not Z77 but still.
Guess thatīs the parts that matter, does anyone have any idea on what it might be?

Could it be that i need to increase the V to the memory controller on the CPU since Iīm running four dims?

Edit: In prime95 one of the cores will at random (or so it seems) fail to initialize FFT code

Edit 2: Think i found the problem, my audio "driver/program" when i quit it I could use "90%" of RAM whiteout any "Blue screen" stuff, very strange.

02-03-2013, 15:57:50

Makis
Good evening to all

i watched the video completly so im starting with 1.245v @stock
and make the first step to 1.200 but is 30 min occt really enough to go then again further down ? if 1.200v is stable maybe to 1.170 or so or is it better to let occt running a lot more time wise?

I7-2600K @stock on auto 1.245v cooled with an H80i
G1 Killer Sniper 3 Z77 Bios F8J( Newest available)
8 GB Corsair Dominator Platinum 1600 MHZ CL9 no XMP
Gigabyte Gtx 670 OC
Samsung Pro 128 GB

02-03-2013, 16:58:59

airdeano
Quote:
Originally Posted by Makis View Post
i watched the video completly so im starting with 1.245v @stock
and make the first step to 1.200 but is 30 min occt really enough to go then again further down ? if 1.200v is stable maybe to 1.170 or so or is it better to let occt running a lot more time wise?
you can let it go for a longer stabilty trial, but in the sake of time, 30min is
plenty. once you have established the lowest voltage without crashing, BSOD
or windows loading failure, revert to last 30min stability voltage and that would
be your undervolt for stock. then you can do a 24hr stability test to verify
that is the lowest and safest voltage to use. even after 9months you might find
that your temps are higher or your get random crashes. now you know what to
do. decrease the multiplier, increase the voltage or maintanence the cooling
solution.

the idea is for you to find that best case scenario in voltage and multiplier
that offers stability. and instead of big swing numbers, trying the stepped
method gets you familiar to the BIOS, how to react to errors, what to look
for in an overclock. look at how the CPU generates heat with each voltage
increase. once you find you are in the 40+ multiplier, the temperatures start
to increase in larger amounts to the voltage increased. from that you start
to understand the thermal capabilities of how overclocking a CPU holds.
if you find the temps are higher than you like, you have options. fine tune
your overclock, increase the cooling solution, reduce to overclock to a temp
suitable for your environment.

02-03-2013, 17:04:13

Scoob
One thing I've found that can catch you out sometimes with such testing is partial load. I.e. you run OCCT all day stressing all four cores and all is well. You then run an older game that's not optimised for mulitple cores - thus stressing ONE core - and you get instabilities. I've had this a couple of times, where EVERY stress test would pass (on four cores) but a certain game would eventually fail. I did not need to up vCore, but a 1 notch increase in LLC did help. I think this is a fairly rare issue, but my friend had the same problem in the same game with his 2600k OC...

Scoob.

02-03-2013, 17:13:17

ugiboy
Surely if that is the case you can simply just do the overclock on the single core?

02-03-2013, 17:49:18

TTucker
hi, i hav got to 4.5ghz on my 3770k at 1.130v in the bios but in cpu-z the voltage is 1.160 on load, is this normal?

02-03-2013, 17:57:33

Makis
Quote:
Originally Posted by TTucker View Post
hi, i hav got to 4.5ghz on my 3770k at 1.130v in the bios but in cpu-z the voltage is 1.160 on load, is this normal?
set vcore load line calibration to turbo/extreme

Quote:
Originally Posted by airdeano View Post
you can let it go for a longer stabilty trial, but in the sake of time, 30min is
plenty. once you have established the lowest voltage without crashing, BSOD
or windows loading failure, revert to last 30min stability voltage and that would
be your undervolt for stock. then you can do a 24hr stability test to verify
that is the lowest and safest voltage to use. even after 9months you might find
that your temps are higher or your get random crashes. now you know what to
do. decrease the multiplier, increase the voltage or maintanence the cooling
solution.

the idea is for you to find that best case scenario in voltage and multiplier
that offers stability. and instead of big swing numbers, trying the stepped
method gets you familiar to the BIOS, how to react to errors, what to look
for in an overclock. look at how the CPU generates heat with each voltage
increase. once you find you are in the 40+ multiplier, the temperatures start
to increase in larger amounts to the voltage increased. from that you start
to understand the thermal capabilities of how overclocking a CPU holds.
if you find the temps are higher than you like, you have options. fine tune
your overclock, increase the cooling solution, reduce to overclock to a temp
suitable for your environment.
Ty for reply so 30 min are ok?
I want to overclock.
Then say 1.170v is stable i can put 1.200v for 4.0 ghz and so on..... then say i will try 1.200v for 4.2 ghz which is 30min stable and then make the 24/7 stability test is this a good way?

02-03-2013, 18:00:05

TTucker
Quote:
Originally Posted by Makis View Post
set vcore load line calibration to turbo/extreme
hi, i hav it on extreme?

02-03-2013, 18:45:11

TTucker
Quote:
Originally Posted by TTucker View Post
hi, i hav it on extreme?
thanks, went in to bios and changed llc from extreme to ultra high and upped my voltage to 1.140 and now in cpuz it goes up to 1.144 on load

Edit:
i hav just stopped occt after 8 min whn i noticed that my cpu vcore dropped to 0.32v, vin1 to 0.01v and +3.3v to 0.03v is this a fault with occt or my system?
i hav a 1200i psu..

02-03-2013, 21:27:50

Josh Weston
Can people please be mindful of consecutive posts. Use the edit button if you wish to add extra information to a previous post before someone else posts.

03-03-2013, 03:34:40

NickHalden
Hello,

I'm having some boot issues after I raiser my multiplier to 48, I think.

My system keeps looping: http://www.youtube.com/watch?v=q5vBCFMkQ7c

Does anybody know a fix for this?

03-03-2013, 06:23:15

Scoob
Try a CMOS reset, pop the battery or short the pins, depending on the method for your motherboard. It will reset EVERYTHING so you'll have to spend a little time reconfiguring stuff like drives, ram etc. possibly.

My guess is that your OC is unstable - but you knew that lol - and the PC cannot even get into the BIOS. Remember, when you are sat in your BIOS your CPU is loaded (a little) and will run at its max clock speed. Sat in the BIOS for extended periods I could see my temps go up, not to gaming levels, but not far off.

Might be something else, but I don't know exactly what you've changed.

Best of luck.

Scoob.

03-03-2013, 07:42:28

NickHalden
Quote:
Originally Posted by Scoob View Post
Try a CMOS reset, pop the battery or short the pins, depending on the method for your motherboard. It will reset EVERYTHING so you'll have to spend a little time reconfiguring stuff like drives, ram etc. possibly.

My guess is that your OC is unstable - but you knew that lol - and the PC cannot even get into the BIOS. Remember, when you are sat in your BIOS your CPU is loaded (a little) and will run at its max clock speed. Sat in the BIOS for extended periods I could see my temps go up, not to gaming levels, but not far off.

Might be something else, but I don't know exactly what you've changed.

Best of luck.

Scoob.
Scoob,

Thank you for your answer. I'll try popping out the battery; hope it helps. Have done that with a few issues before - all worked out perfectly.

Yeah, it's because I raised to multiplier to 48 with a vcore of 1.290. My chip wasn't able to run that.

Again, thank you. Have a nice Sunday!

--

NickHalden

03-03-2013, 08:48:36

airdeano
Quote:
Originally Posted by NickHalden View Post
Hello,
I'm having some boot issues after I raiser my multiplier to 48, I think.
Does anybody know a fix for this?
once you recover from the "boot loop" error. you need to re-watch the video.

you are taking way to big of swings to this process. small incrimental steps
are necessary for proper overclocking.

also, if issues do arise, a hardware spec of build would help a whole lot, too..

03-03-2013, 09:54:32

NickHalden
Quote:
Originally Posted by airdeano View Post
once you recover from the "boot loop" error. you need to re-watch the video.

you are taking way to big of swings to this process. small incrimental steps
are necessary for proper overclocking.

also, if issues do arise, a hardware spec of build would help a whole lot, too..
I was at 4.6, and was going for 4.7 but pressed the plus button twice instead of once.

Wanted to edit my first post and put my specs, but the post was waiting to get accepted by the admin(s).

Specs:

2500K
Corsair H80
Corsair AX850
EVGA GTX 680 SC
Corsair Vengeance 16GB @ 1600MHz
Gigabyte GA-Z68X-UD3H-B3, rev. 1.3, BIOS F11

Guys,

I was trying a overclock of 4.5GHz, vcore set to 1.290. Temps and vcore were:

http://i.imgur.com/mHjiJGq.jpg

But after ~8 min. my system went:

http://i.imgur.com/CVLhxd9.jpg

03-03-2013, 14:43:39

Makis
Good evening to all
i post this again maybe they are more people who can help me out

i watched the video completly so im starting with 1.245v @stock
and make the first step to 1.200 but is 30 min occt really enough to go then again further down ? if 1.200v is stable maybe to 1.170 or so or is it better to let occt running a lot more time wise? and then say 1.150 will be last stable (tested 30min) bump up to 1.200v for 4.0 ghz?
what are your thoughts please let me know ^^

and then e.g test 1.200v with 4.2 ghz 24 hrs`? ^^

I7-2600K @stock on auto 1.245v cooled with an H80i
G1 Killer Sniper 3 Z77 Bios F8J( Newest available)
8 GB Corsair Dominator Platinum 1600 MHZ CL9 no XMP
Gigabyte Gtx 670 OC
Samsung Pro 128 GB

03-03-2013, 18:04:54

Greenback
Quote:
Originally Posted by Makis View Post
Good evening to all
i post this again maybe they are more people who can help me out

i watched the video completly so im starting with 1.245v @stock
and make the first step to 1.200 but is 30 min occt really enough to go then again further down ? if 1.200v is stable maybe to 1.170 or so or is it better to let occt running a lot more time wise? and then say 1.150 will be last stable (tested 30min) bump up to 1.200v for 4.0 ghz?
what are your thoughts please let me know ^^

and then e.g test 1.200v with 4.2 ghz 24 hrs`? ^^

I7-2600K @stock on auto 1.245v cooled with an H80i
G1 Killer Sniper 3 Z77 Bios F8J( Newest available)
8 GB Corsair Dominator Platinum 1600 MHZ CL9 no XMP
Gigabyte Gtx 670 OC
Samsung Pro 128 GB
http://forum.overclock3d.net/images/...tons/quote.gif
run occt for 30 minutes until you hit a low voltage that it freezes or crashes on then work back, so in your example you go 1.200 > 1.17 > 1.15 > 1.13crash > 1.14crash > 1.15 run it for longer

03-03-2013, 18:26:34

airdeano
Quote:
Originally Posted by NickHalden View Post
Guys,

I was trying a overclock of 4.5GHz, vcore set to 1.290. Temps and vcore were:

http://i.imgur.com/mHjiJGq.jpg

But after ~8 min. my system went:

http://i.imgur.com/CVLhxd9.jpg
you 101 is indicating you need more vcore voltage so add another another +
of voltage in the BIOS.

here is a sandy bridge BSOD code list:

0x0A = add QPI/VTT voltage
0x1E = add more vcore
0x3B = add more vcore
0xD1 = add QPI/VTT voltage
“0x9C = QPI/VTT most likely, but increasing vcore has helped in some instances”
0x50 = RAM timings/Frequency add DDR3 voltage or add QPI/VTT
0x101 = add more vcore
0X109 = add DDR3 voltage
0x124 = add/remove vcore or QPI/VTT voltage (usually Vcore, once it was QPI/VTT)

04-03-2013, 15:00:08

Volume
Hi guys, I have few questions, hope you can help me...
Can someone please explain me Internal PLL Overvoltage and CPU Current Capability. What are those settings for and what options should I use?

Thx

Asus P8Z68-V Pro Gen3 & 2600k

04-03-2013, 17:29:02

Makis
Just ignore them use Auto also You can turn internal ppl overvoltage on enabled to get more out of your System i think. I have a question what will tinytomlogan say with this 23:20-24 min i dont understand what he wants to say with this like is the way from 1.050 to 1.1 to big but why he makes the step then?
would be very happy if You can help me out!
Greets

04-03-2013, 17:43:11

Greenback
Quote:
Originally Posted by Makis View Post
Just ignore them use Auto also You can turn internal ppl overvoltage on enabled to get more out of your System i think. I have a question what will tinytomlogan say with this 23:20-24 min i dont understand what he wants to say with this like is the way from 1.050 to 1.1 to big but why he makes the step then?
would be very happy if You can help me out!
Greets
He is refering to going to the original voltage which would of been 1.18 as being a big jump

04-03-2013, 17:54:38

airdeano
Quote:
Originally Posted by Makis View Post
I have a question what will tinytomlogan say with this 23:20-24 min i dont understand what he wants to say with this like is the way from 1.050 to 1.1 to big but why he makes the step then?
he was eluding to that from the base stock voltage (1.050v) that this should
be a stable voltage to run. but to have the student start @ 1.10v and work
down. he already knew his chip could stay stable @ 1.050v.

so basically, keep decreasing voltage until unstable. now you have found the
least amount of voltage to achive running stock multiplier.

05-03-2013, 04:58:09

Master&Puppet
Quote:
Originally Posted by Volume View Post
Hi guys, I have few questions, hope you can help me...
Can someone please explain me Internal PLL Overvoltage and CPU Current Capability. What are those settings for and what options should I use?

Thx

Asus P8Z68-V Pro Gen3 & 2600k
PLL stands for Phase-Locked Loop. A PLL is used for timings just like in a digital clock. How does a clock know how long a second lasts? It measures time based on the speed of a precisely controlled flow of electricity. A computer works in the same way - it's needs to know how long a MHz is.

Internal PLL and CPU PLL voltages are completely different settings neither of which you need to worry about unless you are getting into quite advanced overclocking.

The next bit is taken from own experience (I am not an electronic engineer and Intel keeps these things somewhat secret):
CPU PLL is the voltage which is required for a CPU to manage its own clock speed, specifically the Bclk speed. A higher Bclk speed will eventually require a slightly higher CPU PLL to regulate it.
Since overclocking is almost entirely done on the multiplier on z77/p68 it has no requirement to be adjusted. I'd advise that you set it to the increment just under auto (1.75v for me), since all auto voltages are really overvolted at stock. Once you have finalised your overclock you can reduce the CPU PLL even further to reduce core temperatures slightly. For an everyday OC somewhere between 1.5-1.7v is typical.

The internal PLL is what is used to regulate other timings - I believe in relation to Input/Output elements. There is a chance that overclocking can saturate the Internal PLL under certain conditions (very high clock frequencies) and enabling overvoltage can alleviate this but for most people just leaving it disabled is fine. If nothing else is working then give it a try but it probably won't make a difference and it often can interrupt waking from sleep states. I personally have it disabled and my everyday clock is 4.6GHz.

CPU current capability is related to to total amount of watts drawn by the CPU.
Watts= Volts x Current.
Raising it to 110% or 120% can be beneficial in allowing the CPU to draw more power. Beyond about 130% you risk degrading or damaging the CPU.

EDIT: You are using SB and I'm on IB so the numbers will be ever-so slightly higher for you.

05-03-2013, 05:38:04

NickHalden
For some reason, my voltage (1.365 in BIOS) is so high at idle.

30 min. overclock: http://i.imgur.com/DqM201g.jpg

Idle: http://i.imgur.com/Bsin3lS.jpg

How can I fix that? If you guys need picture(s) of my BIOS settings, let me know.

Thanks.

--

Nick Halden

05-03-2013, 06:59:40

tinytomlogan
Quote:
Originally Posted by NickHalden View Post
For some reason, my voltage (1.365 in BIOS) is so high at idle.

30 min. overclock: http://i.imgur.com/DqM201g.jpg

Idle: http://i.imgur.com/Bsin3lS.jpg

How can I fix that? If you guys need picture(s) of my BIOS settings, let me know.

Thanks.

--

Nick Halden


Yes we need ALL details as I stated in the video, including a full hardware spec list......

05-03-2013, 08:10:42

NickHalden
Quote:
Originally Posted by tinytomlogan View Post
Yes we need ALL details as I stated in the video, including a full hardware spec list......
*I will post pictures later today; I'm a bit busy*

Specs:

2500K
Corsair AX850
Corsair H80, standard fans, push/pull
Gigabyte GA-Z68X-UD3H-B3, rev. 1.3, BIOS F11
Corsair Vengeance 16GB @ 1600MHz, 9-9-9-24-CMDr-1 (manually set, as Tom told us in his video)

Oh, dear Tom... trust me, I did watch the whole video, so I know you told us to post specs. Which I did a few posts ago, but it doesn't really matter. It's much easier for you guys to have both pictures of BIOS and specs, so that's the way I'm going to do it now.

Thank you all for being so friendly and helpful.

--

Nick

05-03-2013, 15:27:13

Volume
Quote:
Originally Posted by Master&Puppet View Post
PLL stands for Phase-Locked Loop. A PLL is used for timings just like in a digital clock. How does a clock know how long a second lasts? It measures time based on the speed of a precisely controlled flow of electricity. A computer works in the same way - it's needs to know how long a MHz is.

Internal PLL and CPU PLL voltages are completely different settings neither of which you need to worry about unless you are getting into quite advanced overclocking.

The next bit is taken from own experience (I am not an electronic engineer and Intel keeps these things somewhat secret):
CPU PLL is the voltage which is required for a CPU to manage its own clock speed, specifically the Bclk speed. A higher Bclk speed will eventually require a slightly higher CPU PLL to regulate it.
Since overclocking is almost entirely done on the multiplier on z77/p68 it has no requirement to be adjusted. I'd advise that you set it to the increment just under auto (1.75v for me), since all auto voltages are really overvolted at stock. Once you have finalised your overclock you can reduce the CPU PLL even further to reduce core temperatures slightly. For an everyday OC somewhere between 1.5-1.7v is typical.

The internal PLL is what is used to regulate other timings - I believe in relation to Input/Output elements. There is a chance that overclocking can saturate the Internal PLL under certain conditions (very high clock frequencies) and enabling overvoltage can alleviate this but for most people just leaving it disabled is fine. If nothing else is working then give it a try but it probably won't make a difference and it often can interrupt waking from sleep states. I personally have it disabled and my everyday clock is 4.6GHz.

CPU current capability is related to to total amount of watts drawn by the CPU.
Watts= Volts x Current.
Raising it to 110% or 120% can be beneficial in allowing the CPU to draw more power. Beyond about 130% you risk degrading or damaging the CPU.

EDIT: You are using SB and I'm on IB so the numbers will be ever-so slightly higher for you.
Thank you so much for this great answer. I wasn't sure is it safe tu use Internal PLL enabled and CPU CC on 110% for 24/7. If I use them I have much more stable overclocks with less voltage.
This is how it works for me:
4300 mhz - 1.200v - Internal PLL Enabled - CPU CC 110% - stable
or
4300 mhz - 1.235v - Internal PLL Disabled or Auto - CPU CC 100% - stable

Looks like these two options make a quite nice difference for my stable oc. What do you recommend for 24/7, what option is more safe to use? More voltage for cpu or...?

06-03-2013, 10:20:13

Master&Puppet
Quote:
Originally Posted by Volume View Post
This is how it works for me:
4300 mhz - 1.200v - Internal PLL Enabled - CPU CC 110% - stable
or
4300 mhz - 1.235v - Internal PLL Disabled or Auto - CPU CC 100% - stable

Looks like these two options make a quite nice difference for my stable oc. What do you recommend for 24/7, what option is more safe to use? More voltage for cpu or...?
The difference between the two is marginal. You just trade a tiny bit of volts for a few more amps. Not really important either way at 4.3GHz They are both safe.

I'm surprised you need Internal PLL enabled at all for that clock though.

06-03-2013, 10:21:14

Makis
Thank You for the answers they helped me a lot! So I tested 1,200 1,17 1,15 1,13 all were stable occt Run 35 minutes now im going to 1,11 v say if It failed the Run of occt i go for say 1.12 but how much time i have to let occt Run to really know this is stable? And this refers for the oc to 4 GHz aswell how much time i have to Run occt that i know this is 100 percent stable. It would be nice if You can help me System and other Post You can find in last pages. Really thanks to the nice community.
Greets

06-03-2013, 10:53:18

tinytomlogan
Quote:
Originally Posted by Makis View Post
Thank You for the answers they helped me a lot! So I tested 1,200 1,17 1,15 1,13 all were stable occt Run 35 minutes now im going to 1,11 v say if It failed the Run of occt i go for say 1.12 but how much time i have to let occt Run to really know this is stable? And this refers for the oc to 4 GHz aswell how much time i have to Run occt that i know this is 100 percent stable. It would be nice if You can help me System and other Post You can find in last pages. Really thanks to the nice community.
Greets
Rather than expecting other to look for your specs dont you think it would be better for you to do it and just copy and paste them into your post above....?

06-03-2013, 11:00:28

Makis
I7-2600K @stock on 1.245v cooled with an H80i
G1 Killer Sniper 3 Z77 Bios F8J( Newest available
8 GB Corsair Dominator Platinum 1600 MHZ CL9
Gigabyte Gtx 670 OC
Samsung Pro 128 GB

Yeah you are right sry but at the moment i have only the s3 for usage but here we go.
Update 1.1 v is also stable now going to 1.09v

Quote:
Originally Posted by tinytomlogan View Post
Rather than expecting other to look for your specs dont you think it would be better for you to do it and just copy and paste them into your post above....?
update/
Update bsod with 1,070 and also 1,080 now trying 1,090 once again how much time do you suggest running occt now ;-)
Update 1,090 v error from occt how is this possible i ran 45 minutes and no error before going down to 1,070v
Occt stopped after 6 minutes with error messages now going to 1,100v
Would be very nice if You could help me ;-)

06-03-2013, 13:57:49

Volume
Quote:
Originally Posted by Master&Puppet View Post
The difference between the two is marginal. You just trade a tiny bit of volts for a few more amps. Not really important either way at 4.3GHz They are both safe.

I'm surprised you need Internal PLL enabled at all for that clock though.
I don't need PLL enabled, I'm just saying if I use it I need less voltage for CPU.

Just found sweet spot for myself... 4.5ghz 1.275v in offset mode. Occt runs stable for about 8 hours, I didn't go further.

Big thanks for help

06-03-2013, 18:43:39

Froger
In the lga 1155 video, when you turn the voltage down, and test it, how will you know if it is stable when you run occt for an hour, what will indicate it not being stable, and if it isnt stable should i add more voltage?

06-03-2013, 19:01:56

Snortan
The system would freeze/crash/bsod/sudden restart or too high temperatures. And yes you add more voltage and test it again, just don't go crazy with the voltage .

06-03-2013, 19:24:29

airdeano
Quote:
Originally Posted by Froger View Post
In the lga 1155 video, when you turn the voltage down, and test it, how will you know if it is stable when you run occt for an hour, what will indicate it not being stable, and if it isnt stable should i add more voltage?
OCCT will finish the test and have some graphs for your load run. if it fails
running OCCT the test will stop and you can view the graphs for the fault.
or the system will lock-up and thats a fail, or the BSOD (Blue Screen Of Death)
if the test fails or system lock-up or BSOD, try increasing the voltage to the
next level (+.005v) and re-run. small increments and you'll find the right
voltage. it can be long and tedious, but you findout a lot of characteristics
of your processor and how it reacts to certain changes.

07-03-2013, 06:47:21

Makis
I7-2600K @stock on 1.245v cooled with an H80i
G1 Killer Sniper 3 Z77 Bios F8J( Newest available
8 GB Corsair Dominator Platinum 1600 MHZ CL9
Gigabyte Gtx 670 OC
Samsung Pro 128 GB


Update bsod with 1,070 and also 1,080 now trying 1,090 once again how much time do you suggest running occt now ;-)
Update 1,090 v error from occt how is this possible i ran 45 minutes and no error before going down to 1,070v
Occt stopped after 6 minutes with error messages now going to 1,100v
Would be very nice if You could help me ;-)
1.100v run 12 hrs no issues now testing 4Ghz 1,160 v and if stable 30 min i go for my aim 4.2 GHz with same voltage how much time do you think is Ok 12 hrs occt? ;-)

07-03-2013, 09:15:48

Makis
http://s14.directupload.net/file/d/3...s393fx_jpg.htm
Here is a pic cpu z and occt why Bus 99,8 not 100 mhz this confuses me ;-)

07-03-2013, 09:27:32

Master&Puppet
Quote:
Originally Posted by Makis View Post
I7-2600K @stock on 1.245v cooled with an H80i
G1 Killer Sniper 3 Z77 Bios F8J( Newest available
8 GB Corsair Dominator Platinum 1600 MHZ CL9
Gigabyte Gtx 670 OC
Samsung Pro 128 GB


Update bsod with 1,070 and also 1,080 now trying 1,090 once again how much time do you suggest running occt now ;-)
Update 1,090 v error from occt how is this possible i ran 45 minutes and no error before going down to 1,070v
Occt stopped after 6 minutes with error messages now going to 1,100v
Would be very nice if You could help me ;-)
1.100v run 12 hrs no issues now testing 4Ghz 1,160 v and if stable 30 min i go for my aim 4.2 GHz with same voltage how much time do you think is Ok 12 hrs occt? ;-)
When an overclock has marginal stability i.e. it's slightly undervolted you'll get all kinds of weird and wonderful effects - things crashing & recovering but it won't necessarily happen every time. They are called intermittent errors and you have to do a sufficient amount of testing to uncover the ones that would affect you.

As a guideline you'll want to use a program like OCCT, Prime95, Intel Burn Test for an extended period. Some say overnight (8+ hours) some say 12 hours but that will not uncover errors that would appear beyond that however they may never affect you depending on the strain you put your system under in the future.

For rock solid stability you'd have to run several programs back to back for 24-48hrs each and then run demanding games/applications to see if they get any errors either. You would be talking a week or so of testing.

Our advice generally would be to run a stress test for 12-24 hours and then just use your computer normally after that. If you get any strange things happening (errors, crashes, or pop ups) or even simple things like being kicked out of an online game (has happened to me when I was slightly undervolted in BF3) then the first thing I would suggest is to add a fraction more to the vcore and try again.

Quote:
Originally Posted by Makis View Post
Here is a pic cpu z and occt why Bus 99,8 not 100 mhz this confuses me ;-)
That's normal, there is a tiny amount of play in all of this. A MHz here or there at the clock speed is nothing to worry about.

07-03-2013, 09:32:09

Makis
Thank you for your nice answer ;-)
I uploaded a pic above refering to the Bus speed is this Ok Bus speed 99,8? In Bios is set on auto
In TTL video There is not such a thing to See therefore im writting it;-)

07-03-2013, 09:43:49

Master&Puppet
Quote:
Originally Posted by Makis View Post
Thank you for your nice answer ;-)
I uploaded a pic above refering to the Bus speed is this Ok Bus speed 99,8? In Bios is set on auto
In TTL video There is not such a thing to See therefore im writting it;-)
Auto generally means 100, so a bclk near to that (0.3MHz either side I suppose) is very typical.

There are some motherboards which cheat by having the auto setting of the bclk a touch higher like 101 and then claim that their motherboards are better performers than others when in fact they've put a 1% overclock on the CPU that way.

07-03-2013, 09:47:00

Makis
Ok understood thanks for helpeing now im running occt
1,200 v 4,2 GHz
I get an error from occt with 1,180 @5 minutes i increased to 1.200 and testing ;-)

Update how is this possible stock 1,100v 12 hrs stable then going up to 4Ghz 1.160 v 35 min occt stable so to say
than 1.160 v 1,180 1,200 fails for 4,2 GHz
Now testing 1,225 for 4,2
Looks that i get a Bad cpu or!? ;-)
Tom what are your thoughts about this?

07-03-2013, 11:41:29

tinytomlogan
^^^^please stop multi posting. use the edit button.

07-03-2013, 12:07:43

Makis
Sry im New here Ok!

07-03-2013, 14:53:17

AndyM95
Quote:
Originally Posted by tinytomlogan View Post
^^^^please stop multi posting. use the edit button.
Tom, does the problem where you have to keep turbo on with the UP4 apply to the UD5H too?
Also, what voltage would you recommend keeping my 2500K below? Some people say 1.35V, others say 1.4V so it would be nice to have a definitive answer. Cheers!

07-03-2013, 15:00:51

Zhoratiu
Hi all, I have an interesting question, but first my specks
I7 3770k
MB Asus P8Z77-V Deluxe
Memory Corsair Dominator Platinum 16gb (4x4 gb) 2400Mhz
Cooler H100 push-pull
Video Asus Matrix HD 7970 Platinum
Be Quiet Dark Power Pro 850W 80Plus Platinum

So my question is, since I have all the MB memory slots occupied beside the normal timings that I have written on the memory sticks do I have to sate the Command Rate(tCMD) to 1 or 2?

07-03-2013, 15:02:35

Makis
Set xmp Profile otherwise you have to look it up in your RAM specifications.

07-03-2013, 18:00:13

NickHalden
*New post, sorry about that*

Okay, pictures is uploaded and specs is down below.

For some reason, my voltage is so high while idling.

30 min. overclock: http://i.imgur.com/DqM201g.jpg
(old voltage of 1.365)

Idle: http://i.imgur.com/Bsin3lS.jpg

BIOS-settings:
http://i.imgur.com/8cUI6xsh.jpg
http://i.imgur.com/jwU5SAjh.jpg
http://i.imgur.com/cuYpvMOh.jpg
[imghttp://i.imgur.com/YmxSMrth.jpg[/img]
http://i.imgur.com/ilR12TSh.jpg

07-03-2013, 18:43:34

airdeano
a couple of things:
turn turbo off
make sure in the windows power option you are in high performance
programs in the running in the background can effect your voltage stream.
have you tried 1.275/1.290 for a 4.5 OC.. 1.345 is a lil high..

07-03-2013, 19:34:59

Mathius
I'll start by admitting I haven't read the guide as yet......but I have an IBT Stable (4096mb RAM, 7 Cycles) @ 4.2 Turbo clock....

The only thing I have done to get this OC is obv. change the turbo multi to 42, vcore to 1.275 and PLL to 1.65v

Everything else is default, C1E and all the other power settings are auto....
-----------------------

EDIT (4096mb, 8cycles)
Turbo 42
vcore - 1.19
PLL - 1.65 (a forum member suggested this, but unsure if i need to - normal is 1.80)
Load Line Calib - Extreme

CPU-z Core Volt - between 1.212 and 1.248
MAX Temp - 74'c
Fan Speed 1506 RPM

Can the temp be brought down anymore ?

07-03-2013, 23:52:54

airdeano
Quote:
Originally Posted by Mathius View Post

Can the temp be brought down anymore?
two things? what are you using for a cooling solution?
is that the lowest your 42 vcore can go, stabily?

08-03-2013, 05:10:24

Mathius
Quote:
Originally Posted by airdeano View Post
two things? what are you using for a cooling solution?
is that the lowest your 42 vcore can go, stabily?
Cooling - Hyper 212 Evo.
Volts - I run vcore from 1.275 down to 1.190 just to see if it would pass IBT which it did.

I know IBT stresses harder than Prime in the way of temps, and is so much faster than 24hrs prime, but can I get under 70c

My 212 Evo is facing rear but I only have a 140mm top exhuast atm, oh and 1x 120mm front intake

08-03-2013, 13:41:38

yd1
hello
about core degradation due to overvolt.
but is there going to be a degradation when undervolting?

I've found on my GPU actually, that a stable undervolt
is no longer stable after a while, and i've head to raise it couple of times
to keep it stable (in my case from 1.006 gradually to 1.032)


i know its a gpu, assuming its the same with cpu regarding undervolting.

22-03-2013, 20:49:45

Makis
Hi there now im running my i7-2600k with same bios settings like TTL
finally stable after cmos reset bios update and windows 7 instead of 8 with 1.235v @ 4.2Ghz
is this ok voltage whise for 24/7 usage and also i have all power energy options disabled like tom said in the video is this the best way ?
Would be nice if you answer

C1e Disabled
C3/C6 Disabled
CPU Eist Disabled








My system
I7-2600K 4.2 Ghz 1.235v
G1 Killer Sniper 3 Z77 Bios F7
16 GB Patriot Memory Viper 3 2133 Mhz CL11
Gigabyte Gtx 670 OC
Samsung Pro 128 GB

25-03-2013, 01:29:41

Master&Puppet
Quote:
Originally Posted by yd1 View Post
hello
about core degradation due to overvolt.
but is there going to be a degradation when undervolting?

I've found on my GPU actually, that a stable undervolt
is no longer stable after a while, and i've head to raise it couple of times
to keep it stable (in my case from 1.006 gradually to 1.032)


i know its a gpu, assuming its the same with cpu regarding undervolting.
The theory is the same but GPUs are more sensitive to voltage changes. You won't damage it by undervolting - that's like saying you'll burn bacon faster by cooking it on a lower heat, it doesn't make sense. You got the crashes on your GPU because of undervolting too much and the same would be true of a CPU. Crashes because of that don't hurt anything.

Quote:
Originally Posted by Makis View Post
Hi there now im running my i7-2600k with same bios settings like TTL
finally stable after cmos reset bios update and windows 7 instead of 8 with 1.235v @ 4.2Ghz
is this ok voltage whise for 24/7 usage and also i have all power energy options disabled like tom said in the video is this the best way ?
Would be nice if you answer

C1e Disabled
C3/C6 Disabled
CPU Eist Disabled
That's absolutely fine. Very safe voltage and having those power saving options set is standard.

25-03-2013, 08:40:54

Scoob
I generally leave all the power state thingies enabled as it made no difference to my maximum stable OC. Plus I benefit from the machine idling properly while doing simple desktop stuff. I just find it satisfying that the machine is being efficient like that when the power isn't needed.

My old Q6600 needed those things disabled to remain stable at 3.6ghz, but Sandy B. - or my motherboard - just seem much better at switching the power states so it's not been an issue.

Sometimes it's nice to disable them while you're experimenting, so you can see more constant voltages as the chip isn't clocking down, but once you're there I'd try re-enabling it. I'm under water, so my PC is near silent regardless of what it's doing, but an air cooled system would potentially run quieter, if the fans are linked to temps.

Scoob.

25-03-2013, 12:35:55

Master&Puppet
Quote:
Originally Posted by Scoob View Post
I generally leave all the power state thingies enabled as it made no difference to my maximum stable OC. Plus I benefit from the machine idling properly while doing simple desktop stuff. I just find it satisfying that the machine is being efficient like that when the power isn't needed.

My old Q6600 needed those things disabled to remain stable at 3.6ghz, but Sandy B. - or my motherboard - just seem much better at switching the power states so it's not been an issue.

Sometimes it's nice to disable them while you're experimenting, so you can see more constant voltages as the chip isn't clocking down, but once you're there I'd try re-enabling it. I'm under water, so my PC is near silent regardless of what it's doing, but an air cooled system would potentially run quieter, if the fans are linked to temps.

Scoob.
I agree I try to enable C1E where possible. Works fine on my 3570K @ 4.6GHz on a fixed OC. For beginners though I think it's easier to keep things black and white.

03-04-2013, 02:41:02

apocalypzez
Quote:
Originally Posted by Luscious View Post
Noob question - how do you get around the Welcome screen and windows sound?
Its the SSD!! I wish Tom said about what SSD he used!!

04-04-2013, 22:44:06

SolRayz
tinytom, thanks for all the great videos over the years! You have brought me much wisdom.

Not sure if Gigabyte boards have offset voltage options, but, one thing you didn't touch on was OCing using an offset and how to go about correctly setting an offset voltage. In my case through trial and error, I found an OC with a 48x and an offset of +.040v to maintain stability with voltage fluctuating between 1.37v -1.38v while running OCCT per your guide. Voltage will drop to a cozy 1.040 with no load. This is with the specs in my sig.

My understanding is that the offset is determined using Vcore and your VID. Just not sure I totally get it.

I guess my question is how to do you properly set an offset? Maybe another tutorial vid? Thnx!!!

20-04-2013, 19:12:18

Delr0n
My spec:
i7 3570k @ 4Ghz (currently)
ASUS Maximus V Formula
16 gigs of corsair vengence ram 9-9-9-24 Cmd 2
Cool Master Silent Pro 1200 Watts
Silvestone Raven rv02b-ew
Corsair H80i

Bios Setup:

C3/C9/C1E Disabled
EIST Disabled
Loadline: Extreme
Thermal Monitor: Disabled
Turbo: Disabled (well greyed out)
CPU Voltage: 1.100v
Dram Voltage: 1.5v
Using the X.M.P Profile for my ram.

So I ran in to an interesting problem, I did a stress test on stock for awhile, and anything seemed fine. Upped the core ratio to 40, everything was going good, then suddenly OCCT's cpu usage drops, and then SPIKES back up to 100%. The temperature on my core 1 goes from 55 degrees to suddenly 70 and stays there. My core 4 temperature drops to about 35 and doesn't change.

I loaded up Corsair Link 2 to see what the issue was (and I loaded up hwmonitor for an additional comparison, and the temp was bouncing around 57ish average for all my cores.

So did OCCT s**t the bed?

20-04-2013, 22:19:20

airdeano
Quote:
Originally Posted by Delr0n View Post
So did OCCT s**t the bed?
what version?

20-04-2013, 22:27:32

AndyHope
I have a similar issue with my board (Asus P8Z77-V). Two of my core temperatures give odd reading, sometimes one is 1.5 and the other is 127. The other two give more accurate readings.

It is a common issue on Asus boards. Also sometimes all of the readings, including voltages, go to zero then back to normal.

21-04-2013, 00:03:32

Delr0n
Quote:
Originally Posted by airdeano View Post
what version?
4.4.0

21-04-2013, 00:04:05

Delr0n
Quote:
Originally Posted by AndyHope View Post
I have a similar issue with my board (Asus P8Z77-V). Two of my core temperatures give odd reading, sometimes one is 1.5 and the other is 127. The other two give more accurate readings.

It is a common issue on Asus boards. Also sometimes all of the readings, including voltages, go to zero then back to normal.
Yes! Exactly! Have you come up with a solution?

I'll most likely try the newest bios and see if that fixes it. Either way or just run Prime95 with HW Monitor

21-04-2013, 04:20:02

AndyHope
The issue is with the AI suite software, Asus say that if it is running alone it is fine but when another piece of software is polling the same information (occt in you'r case) it causes problems.

It is very difficult to fix because AI Suite does not uninstall cleanly. I had the same problem on my p5n32-e sli motherboard, I thought that they may have fixed it by now but they don't accept that it is their problem.

21-04-2013, 04:31:01

Scoob
Asus AI Suite can be a little flaky, but it's a good idea to not have more than one tool monitoring the same sensor at one time. Many such tools can have a degree of overlap in what they detect, so if you are getting odd errors it's worth checking.

Personally, when benchmarking / stress testing, I run the following tools together with no issues:

Core Temp
CPUz
GPUz x2 (one for each GPU)
Process Explorer

I pop these up on my 2nd monitor and they seem to work fine together.

Note: I did have an issue with an older version of GPUz causing crashes, but newer updates saw that problem go away.

Scoob.

09-06-2013, 10:56:32

Svarog
Thank you so much for this Guide

Now i'm not stranger to OCing but i came from a i7 950 and it worked a bit different.

I used this for my new Haswell Upgrade and achieved my goal of 25% OC in about a day

4770K @ 4,4 GHz (1.155v in Bios, goes to about 1.180v when OCCT is started)

11-06-2013, 08:51:59

BlockABoots
Have manged to achieve an OC of 4.6Ghz on the following system.....

GIGABYTE Z87X-UD5H
i7-4770K
Crucial Ballistix Tactical 16GB 1600MHz
MSI HD7950 3GB XFIRE |



Im now aiming for a 4.8Ghz OC.
Only settings i have changed from my 4.6 OC is the....

CPU Clock Ratio 4.8
Uncore Freq 4.7
Turbo ratio 4.8 (for all 4 cores)
CPU Offset +0.195

CPU-Z is reporting a voltage of 1.320 which im not sure if im cofortable with for 24/7 use, OCCT lasts about 3 minutes before it blue screening!. Is there any other options i should look at tweaking other than the CPU voltage to get this 4.8 OC stable?

11-06-2013, 09:48:55

tinytomlogan
You need to have a manually set voltage not an offset.

1.32 is WAY too high and youve not said anything about temps etc.

11-06-2013, 09:53:44

BlockABoots
I though off set is best to use, as it down clocks the voltage when not being stressed, it worked ok for the 4.6 OC?

For the 4.6 OC the temps never went above 63c on any cores with a volt of 1.205. The 3 minutes i got in OCCT with the 4.8 OC at 1.32v the max temps were 70c on any of the cores.

01-07-2013, 08:46:25

ahpadt
Is load line calibration needed for Haswell? I have a Maximus 6 Gene and been playing with the settings, which goes from Level 1 to Level 8. Not entirely sure what the different levels correspond to, although it seems that when I try to run at Level 8, the voltage level stays stable but also consistently ever so slightly above the Vcore I set. The Vcore seems to be pretty stable even with it set to Auto (not perfect, but it only spikes by roughly 10%).

02-07-2013, 15:06:12

sinnedone
Quick question about the occt software.

Is it better to use "linpack:cpu" for checking stability for extended periods of time (12 hrs+ ), or the "occt:cpu" option?

01-08-2013, 05:36:51

archertom
Thanks for this guide, I'm now really keen to have a go at my systems.

One question though around undervolting: is this a step to create a really low-power stock clock for everyday non-gaming use, and is there a way to easily switch between power profiles?

01-08-2013, 06:14:14

tinytomlogan
Quote:
Originally Posted by archertom View Post
Thanks for this guide, I'm now really keen to have a go at my systems.

One question though around undervolting: is this a step to create a really low-power stock clock for everyday non-gaming use, and is there a way to easily switch between power profiles?
No its to show you what you cpu actually needs at stock so you have a point to work up from. Its in the video.........

19-08-2013, 11:24:41

zvipster
Hi all!
First time here, and first time OC'in (well actually UC'in)
But I've run into a problem, I think at least.
First hardware:
Gigabyte GA-z68xp-UD4
2500k stock cooler
Corsair vengeance 2x4gb 9-9-9-24 1.5v
GTX 570.

So my motherboard doesnt have load line calibration.
Instead I've managed to find another option called Multi-Steps Load-Line.
And I am fiddling around with it to keep it sort of in line with my set voltage.
First off:
My i5 was auto on 1.265v, aint this a bit high?
And second of, when I run OCCT test my boost clock will only let it rise to 3,4GHz.
Is this normal or do I have a problem?
ATM I am around 1.075v and it seems to be the same as when I have it on 1.265.
But basicly what am I supposed to look for to see when I've gone too low on VCore?

19-08-2013, 12:11:18

zvipster
Quote:
Originally Posted by zvipster View Post
Hi all!
First time here, and first time OC'in (well actually UC'in)
But I've run into a problem, I think at least.
First hardware:
Gigabyte GA-z68xp-UD4
2500k stock cooler
Corsair vengeance 2x4gb 9-9-9-24 1.5v
GTX 570.
So, I've found that 1.075 is stable for 30 minutes of OCCT and I've also found that my VCORE is jumping.
I've included the results from OCCT, are there anyone else you'd like to see?
From my knowledge this is stable right?
And does anyone know why the usage aint stable at 100%?

04-09-2013, 10:22:18

odourboy
First post to the forum and let me first say it was Tom's excellent Gigabyte OC video and guide that got me here and what a great bunch you all are! Thanks in advance to all. Even if you can't help me with the following problem, you've already been a tremendous help to my first OC adventure!

So here's the problem:

I OC'd by 3570K as per Tom's guide to a 'conservative' 4.3Ghz with temps and Vcore I was comfortable with under a variety of OCCT tests and Prime95. Vcore was stable at 1.224V under constant load and OCCT Linpack (which varies the load) it moved between 1.213 and 1.224.

Installed a EVGA GTX680 GPU yesterday and all hell breaks loose with respect to my Vcore. Vcore under load is now 1.320V (on an idle machine, it's dropping as low as 0.696V). Under the OCCT Linpack test it's also swinging more. Temps and CPU power consumption have risen correspondingly.

Looking at the Vcore swings, it would appear that the Bios is behaving as if the Vcore setting as 'Auto', but it has a set value (1.205V) and Loadline adjustment set to 'Extreme'. (for reference, the GPU settings in the Bios were left at 'auto' when I installed. I did not tinker with any OC settings on the GPU - it's entirely stock with the latest Nvidia driver 320.49 IIRC)

Any idea what's happened and how to fix (aside from yanking out the GPU)?

If my signature setup took, here's my system:

04-09-2013, 10:31:28

tinytomlogan
Check all the bios settings again mate. Sounds like the CPU specific settings like speedstep are back on?

FYI post the rig specs in you post. Your sig will change but this post will always be here and it may help someone else.

04-09-2013, 12:07:20

odourboy
Quote:
Originally Posted by tinytomlogan View Post
Check all the bios settings again mate. Sounds like the CPU specific settings like speedstep are back on?

FYI post the rig specs in you post. Your sig will change but this post will always be here and it may help someone else.
Checked again and see nothing obvious (I changed very little, but if something 'automagically' changed that I hadn't touched or kicked in due to the addition of the GPU, I wouldn't know it...) but I have to admit I don't know what setting(s) you mean when you say 'Speedstep'. What's that?

EDIT: A bit of searching and I found
M.I.T > Advanced Frequency Settings > Advanced CPU Core Features > CPU EIST Function

Mine is set to Auto - always was AFAIK. Would installing a GPU bring this feature to life?

On a whim, I set it to 'disabled' and it makes no difference.

Here's my system:
Intel i5 3570K @ 4.3Ghz / 8GB G.Skill Ripjaws X @ 1866Mhz / Gigabyte Z77X-D3H / EVGA GTX 680 @ 1006/1058 / WD Blue 1TB / Corsair H55 cooler/ Corsair TX750 V2 / Corsair Carbide 300R

19-09-2013, 14:47:27

Krotonas
Hello guys!

This is my first post in the forum. I've been following Tom's Youtube channel for a year now and I'm loving all the in-depth reviews and the lengthy but fully informative videos posted.

Some heads-up, I have to say that I'm a complete noob regarding these things. This is the first time in my 7 years owning a PC and first time after a year with my current PC that I dared to tweak BIOS settings, all thanks to Tom and his guide. Also, I would like to inform you, that I'm not a native English speaker, so maybe my posts will have some "akwardness" as well as the above mentioned "noobiness".

Now, my system is the following:
-Intel Core i5 3570K
-Corsair vengeance 2x4GB 1600Mhz
-Gigabyte Z77X-D3H motherboard

I've followed Tom's guide but did not overclock my CPU. I did the first bit, where he tries to find the lowest voltage needed for stock frequency. I wanted to experiment with that first, as I'm planning to buy a watercooler, learn a little more theory and then start adding volts.

My stock CPU Vcore was at 1.15V and i succefully run an OCCT test with Tom's exact reccomended specs and 1.10V and after half an hour the system was stable and the temps where relatively lower than a completely stock test. But i noticed that under full load the CPU would run at 3,603 GHz instead of 3,8 which is the turbo setting that I didn't change.

I changed the DRAM Timing Selectable to QUICK, VCore Loadline Calibration to EXTREME and the Auto settings and System Memory Multiplier and DRAM Voltage to 13.33 and 1.5V.

Is there something I did wrong?

P.S.: i'm now running a test with the CPU Vcore at 1.05 Volts and after 7 minutes in the first test and 15minutes in the second test the test stopped with an "Error Detected" message.

04-10-2013, 04:16:48

Jimmy?
Hey Tom, love your work and OC3D for its entertaining reviews . Not sure if I am posting this right place new to posting in forums part but long time watcher.
My question is when running at stock speeds (3770k H70 Extreme 4) because I am setting the Vcore at a set value I guess it keeps cores running at that Ghz (3.9) all the times is this true and if so is that a plus to add life to cpu due to voltage not jumping up and down the whole time? At auto it jumps from 1.6 Ghz 0.7ish volts to 3.9 Ghz 1.13 volts.

System
3770k
asrock Extreme 4
vengeance LP 1600 8 Gig
Gtx 660
830 120gig ssd

04-10-2013, 06:37:27

tinytomlogan
Its probably where youve turned speed step and/or eist off dude.

Could be other things too because I dont know what you have done. All answers are in the video and article.

22-10-2013, 07:49:42

Kiwiandapple
Hello!

I am very new to OC'ing so after going trough this guide completely on youtube. I decided to grab my laptop and do this step by step. (it takes more then 1 hour!)

Then when trying to boot into windows after changing the very few things I should change, blue screen when going into windows. Sadly I had to do a system restore before, so I did not had bluescreenviewer installed.. But very likely I will get another blue screen later on. I just hope that it will be found by this program since I don't get into windows.

Anyway. so then I went into the bios and hit F7, F10 and got into windows.
Then I decided to do a stress test. Where after about 15mins my pc frooze.
Here is a screenshot off CPU-Z, OCCT, Speccy. What you can't see in Speccy is my PSU and CPU Cooler. Wich are a Corsair TX650 v2. & Sycthe Mugen 3 Rev b.

Hopefully this is enough information thus far, if not feel free to ask me and i'll see what I can do. I saw that you can screenshot the bios too. So if I need to do that, then let me know.

http://i.imgur.com/tdqK9fk.jpg

22-10-2013, 08:31:43

tinytomlogan
For starters youve not followed the guide.

Your cpu volts are not consistent.

22-10-2013, 17:49:17

Kiwiandapple
I know that in that screenshot I litterly did 0 steps, I just hit F7 in the bios and went to windows to test because off the crash I had. After reading your comment that I did not follow the guide, wich was sort off correct. At that screenshot I did not followed it. So I grabbed my laptop and did the very few things you told to do. Started a test, after 5mins my pc crashed (black screen) and rebooted. I was like, fine let's try again. Then i tested for about 38mins. Wich it did fine.

But overall I just think I just don't have a stable system.
Here! are the screenshots off that 38mins test.

23-10-2013, 07:58:56

tinytomlogan
Quote:
Originally Posted by Kiwiandapple View Post
I know that in that screenshot I litterly did 0 steps, I just hit F7 in the bios and went to windows to test because off the crash I had. After reading your comment that I did not follow the guide, wich was sort off correct. At that screenshot I did not followed it. So I grabbed my laptop and did the very few things you told to do. Started a test, after 5mins my pc crashed (black screen) and rebooted. I was like, fine let's try again. Then i tested for about 38mins. Wich it did fine.

But overall I just think I just don't have a stable system.
Here! are the screenshots off that 38mins test.

You need to post screens shots properly.

If you are a complete beginner you should make your own thread

01-12-2013, 10:54:00

Noob
hey guys, looking for some help!

Yesterday I started following the Gigabyte overclocking video from this website, followed it step by step, for around 30 minutes. I got to the first overclock, and lost all video. then had to reset the bios, video came back but windows wasn't starting up, it was going into start up repair, as always that didn't fix anything. so I had to do a fresh install, which is all set up now.
after installing all drivers I take a look on CPU-Z and the voltage on the CPU is jumping from around 0.970 to 1.200, and core speed is jumping from 1500MHz to 3300MHz, this wasn't happening before I reset the bios.

I'm not really sure why I lost video or the ssd crashed.
any help would be amazing. thanks.
I would love to get this rig up to 4.00GHz

running on...
Intel i5-2500K
not sure what the cooler is called but it's good enough for overclocking
Z77-D3H Mobo
8gb DDR3. 1600MHz
Radeon HD 6950 2gb
OCZ 120GB SSD with AHCI enabled in the bios.

01-12-2013, 11:19:47

tinytomlogan
Quote:
Originally Posted by Noob View Post
hey guys, looking for some help!

Yesterday I started following the Gigabyte overclocking video from this website, followed it step by step, for around 30 minutes. I got to the first overclock, and lost all video. then had to reset the bios, video came back but windows wasn't starting up, it was going into start up repair, as always that didn't fix anything. so I had to do a fresh install, which is all set up now.
after installing all drivers I take a look on CPU-Z and the voltage on the CPU is jumping from around 0.970 to 1.200, and core speed is jumping from 1500MHz to 3300MHz, this wasn't happening before I reset the bios.

I'm not really sure why I lost video or the ssd crashed.
any help would be amazing. thanks.
I would love to get this rig up to 4.00GHz

running on...
Intel i5-2500K
not sure what the cooler is called but it's good enough for overclocking
Z77-D3H Mobo
8gb DDR3. 1600MHz
Radeon HD 6950 2gb
OCZ 120GB SSD with AHCI enabled in the bios.

Follow the guide in the video or the article first. (problems you have show you have not)

01-12-2013, 12:14:21

Noob
Quote:
Originally Posted by tinytomlogan View Post
Follow the guide in the video or the article first. (problems you have show you have not)
Like I said, I followed the guide.

I've tried again.
Set the CPU to 1.1 volts and 4GHz then lost video, again!
Could it be the jump from 3.3GHz to 4GHz?

01-12-2013, 13:01:43

tinytomlogan
Quote:
Originally Posted by Noob View Post
Like I said, I followed the guide.

I've tried again.
Set the CPU to 1.1 volts and 4GHz then lost video, again!
Could it be the jump from 3.3GHz to 4GHz?

Follow the guide. stop missing steps. Start at the beginning and work your way through. Not being funny dude but Ive done my bit already by making the video etc. Follow that first THEN ask questions because what youre saying above proves you have not.

06-12-2013, 07:53:26

Surfie
Ok, i've just started getting my overclock set up on my PC (properly this time - last time I just kinda winged it and didn't do it properly), and i've found (I think) at the very least a baseline of what my stock cpu set up is.

I say I think because when I have turbo enabled, i get a BSOD (Turbo kicks it up to 3.8) @ ~15 minutes, and when I run with Turbo disabled, I have perfect stability (2 hour test). This is at 1.1 volts.

This is on the following hardware:
Rampage IV Extreme
3730K 2011 chipset (3.2Ghz out of the box) - stock volts: 1.175
1333 RAM (Corsair Vengence) - set in BIOS using the XMP because I lost the spec sheet and i'm lazy.
Corsair H100i AIO (at the moment - still waiting on my water cooling order to arrive GRRRRR)

So my questions are:

1) Should I accept this as a baseline? Or should I keep Turbo disabled, and keep dropping the volts to get a truer baseline of what my stock speed is?
2) Presuming that I can use this as a baseline, (and recognising that you can't give me numbers here - just looking for some direction) could I just up the volts to the stock (1.175) and keep increasing the multiplier until final stable for a decent 24/7 over clock? Or will this cause further wear and tear to the CPU?
3) On my MB, i've noticed, that when I increase the multiplier on the CPU, the Turbo (which I previously disabled) automagically re-enables and doesn't allow me to turn it off. Does this mean that I should hard input values into the Turbo fields to match the multiplier so that the Turbo doesn't do weird things with the voltage?

31-12-2013, 14:13:51

Black Magic
Just a quick question for those with the ASROCK Mobo's, vDroop, or loadline calibration, whats it called in the AsRock Bios?

31-12-2013, 14:14:56

Remmy
Quote:
Originally Posted by Black Magic View Post
Just a quick question for those with the ASROCK Mobo's, vDrool, or loadline calibration, whats it called in the AsRock Bios?
LMAO Vdrool

31-12-2013, 14:56:36

Black Magic
fixed for Remmy ha!

04-01-2014, 19:23:54

crap-at-games
i would just like to say hi to everyone and especially hi to tom ive watched the overclocking video numerous times and thought why dont i have a go and i done everything step by step and i underclocked 1st and got down to 1.000v and temps were 49/51/49/48 and ive got up to 4.3ghz at 1.170v temps 63/70/69/65 and it was stable for 9 1/2 hous i think this is good and im happy apart from one thing and wondered if you guys could help when i run any benchmark it says my processor is still 3.4 ghz ???

system specs are

CASE in win mana 134
PROCESSOR intel 3570k model
MOBO gigabyte z77x-d3h
GPU asus GeForce GTX 760 DirectCU II OC

SSD 64GB
SSHD Seagate 500GB Laptop Thin SSHD SATA 6GB/s 64MB 7mm

PSU Seasonic M12II 620w bronze



COOLER corsair h80 with sp120 quiet fans (push/pull)

RAM G-Skill 8GBXL Ripjaws X DDR3 PC12800 1600MHz 8GB Kit

PLUS 5 x 120mm fans
PLUS 2 x 500gb hard drives
Windows 7 64 bit

Any help would be most appreciated thanks

04-01-2014, 19:29:45

NeverBackDown
Quote:
Originally Posted by crap-at-games View Post
i would just like to say hi to everyone and especially hi to tom ive watched the overclocking video numerous times and thought why dont i have a go and i done everything step by step and i underclocked 1st and got down to 1.000v and temps were 49/51/49/48 and ive got up to 4.3ghz at 1.170v temps 63/70/69/65 and it was stable for 9 1/2 hous i think this is good and im happy apart from one thing and wondered if you guys could help when i run any benchmark it says my processor is still 3.4 ghz ???
They take the model number and display its intel specs. It is still running what its set in the bios. Download CPUZ if you have not already and it will show you in there.

04-01-2014, 19:50:56

crap-at-games
hi thanks for the reply and yep i got cpuz and occt and it says in cpuz
4303.62
x43.0 (16-43)
100.08mhz

07-03-2014, 16:36:01

Bumsley
Hey guys, just had a quick question about my overclock in regards to bus speed. I've ran prime95 for 12 hours on this clock, IBT on high 10 times, and OCCT for 4 hours and it seems to be stable, however the bus speed throws me off. Is it safe at 100.9mhz? I followed the guide to the letter (as far as I could tell, save for adjusting the memory settings, I just loaded the profile).

Specs:
Gigabyte z77 ud3h
Gskill sniper 1866mhz 1.5 v 9 10 9 28
intel i5 3570k @ 4.2ghz/1.08v
http://i.imgur.com/1rb55YK.png

06-05-2014, 11:59:35

besux
Hey guys,

first of all, thanks Tom for a great guide. This gives me the confidence to finally give overclocking a go.

Just a quick question, which I think wasn't adressed here before: Is all of this the same for a LGA1150 or are there differences to the LGA1150 (which as far as i understand is it's predecessor?)?

I was planing to give this a try on my

ASRock Z87 Pro4
i5 4670K CPU (I was going togive it a go with the standard cooler)
Kingston HyperX Fury DDR3 1600MHZ
MSI N760 TwinFrozr GTX760
Samsung EVO 840 250GB

thanks and best regards
Tom

06-05-2014, 12:03:00

Cru
Quote:
Originally Posted by besux View Post
Hey guys,

first of all, thanks Tom for a great guide. This gives me the confidence to finally give overclocking a go.

Just a quick question, which I think wasn't adressed here before: Is all of this the same for a LGA1150 or are there differences to the LGA1150 (which as far as i understand is it's predecessor?)?

I was planing to give this a try on my

ASRock Z87 Pro4
i5 4670K CPU (I was going togive it a go with the standard cooler)
Kingston HyperX Fury DDR3 1600MHZ
MSI N760 TwinFrozr GTX760
Samsung EVO 840 250GB

thanks and best regards
Tom
things in the bios will look a bit different but it's pretty much the same procedure
haswell overclocking with the stock cooler isn't a great idea though
you can still play around to find your lowest stock voltage

12-05-2014, 11:30:47

gizbug
In your guide, you write "So, into your voltage control and manually change the voltages from auto to what they should be."

Any idea what you mean here? I am not sure what they "should be" from the get go.


My goal is a 4.2-4.4 Overclock with air cooling.

I7 - 2600K | Gigabyte Z77-UD3H | G.SKILL Ripjaws Z Series 16GB (4 x 4 G
Radeon HD 7970 | Asus Xonar DX | Windows 8.1

02-07-2014, 11:02:46

Gorminator
Hey all i know i am late to this guide, i am doing what TTL is telling in the guide. But i am not sure that fixed voltage on a asrock bord, means the same as set the vcore on gigabyte bord.
Right now i am at the point, there i started with fixed cpu voltage at 1.100. and worked down to 1.050 on my 3770K on stock
useing asrock z77 extreme 4 btw.

02-07-2014, 11:54:10

RamboOC
Quote:
Originally Posted by Gorminator View Post
Hey all i know i am late to this guide, i am doing what TTL is telling in the guide. But i am not sure that fixed voltage on a asrock bord, means the same as set the vcore on gigabyte bord.
Right now i am at the point, there i started with fixed cpu voltage at 1.100. and worked down to 1.050 on my 3770K on stock
useing asrock z77 extreme 4 btw.
with fixed voltage the voltage won't be able to scale down, so its like speedstep disabled. you will most likely actually have higher overall power draw with fixed voltage than if it were stock settings.

setting the vcore to fixed voltage will mean that vcore will stay the same at all times.

02-07-2014, 12:14:27

Gorminator
okay, but its staying at a vcore. its jumping around like crazy

02-07-2014, 12:16:39

RamboOC
Quote:
Originally Posted by Gorminator View Post
okay, but its staying at a vcore. its jumping around like crazy
what voltage range? (0.8v- 1.1 etc.) might be llc

02-07-2014, 12:21:40

Gorminator
Quote:
Originally Posted by RamboOC View Post
what voltage range? (0.8v- 1.1 etc.) might be llc
Yeah its somethink like that my LLC is set to level 5. Maybe thats worng? but am i doing it worng then i am using fixed to find the minimum volt?

----------

Quote:
Originally Posted by Gorminator View Post
Yeah its somethink like that my LLC is set to level 5. Maybe thats worng? but am i doing it worng then i am using fixed to find the minimum volt?
Here is some pictures of the test i am doing.
and i just think that the vcore sould be more then that CPU-z is sayning there. its set to fixed 1.040 here LLC level 5.

02-07-2014, 12:33:30

RamboOC
Quote:
Originally Posted by Gorminator View Post
Yeah its somethink like that my LLC is set to level 5. Maybe thats worng? but am i doing it worng then i am using fixed to find the minimum volt?
do you want the voltage to scale (fixed voltage is better for overclocks but more overall electricity usage) ?

Quote:
Originally Posted by Gorminator View Post
Here is some pictures of the test i am doing.
and i just think that the vcore sould be more then that CPU-z is sayning there. its set to fixed 1.040 here LLC level 5.
it looks like lcc. Voltage decreases when cpu under stress.

02-07-2014, 12:36:41

Gorminator
Quote:
Originally Posted by RamboOC View Post
do you want the voltage to scale (fixed voltage is better for overclocks but more overall electricity usage) ?



it looks like lcc. Voltage decreases when cpu under stress.


YES.. want the voltage to scale
yeah its was 100 % OCCT LinPack AVX enable and all logical cores enable

------------

Quote:
Originally Posted by Gorminator View Post
YES.. want the voltage to scale
yeah its was 100 % OCCT LinPack AVX enable and all logical cores enable
YEP. its was LLC. Now its like 1.032 - 1.040.
Thanks fore the Help
Reply
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