Silver Power SP-850M 850W Modular PSU Review

Test Results (Data)

Silver Power SP-850M 850W Modular PSU Review

Simulated Load Results (Tables)

If you've seen the simplified graphs over on the previous page you will undoubtedly already have a good idea of how the Silver Power performs. However, certain results from the test can be too difficult to incorporate into the existing graphs, and for this reason all of the result data is also provided in the table format below. 

All testing is conducting using OC3D's trusty SunMoon SM-268+ DC load tester. This equipment is capable of placing a user specified load on all of the PSU's rails (+3.3v, +5v, +12v, -12v, +5vSB) up to a maximum load of 1680w. To make the testing even more grueling, the PSU is also locked inside a 50°C (±5%) 'hot-box' with all results being recorded using a Fluke digital Multimeter and Thermostat.

Silver Power SP-850M 850W @ 50c
  +3.3v +5.0v +12v +5vSB -12v AC Watts /
 DC Watts
 Efficiency Intake /
 Exhaust
Δ Temp
Test1
(25%)
4.50A4.50A14.25A0.75A 0.12A245w /
214w
87.34%49.6°C /
49.9°C
0.3°C
3.35v5.01v12.06v5.07v -11.86v
Test2
(50%)
9.00A9.00A28.50A1.50A 0.25A

475w /
428w

90.10% 50.2°C /
54.3°C
4.1°C
3.32v4.98v12.02v5.03v -11.87v
Test3
(75%)
12.50A12.50A42.75A2.25A 0.37A700w /
630w
 90.00%51.5C /
57.3°C
5.8°C
3.28v4.94v11.98v4.99v-11.88v
Test4
(100%)
18.00A18.00A57.00A3.00A0.50A977w /
847w
86.69% 50.4°C /
60.0°C
8.5°C
3.25v4.90v11.93v4.95v-11.88v
TestX1
(x-load)
18.00A18.00A1.00A0.75A0.12A203w /
165w
81.28%50.7°C /
50.7°C
0.0°C
3.31v4.95v12.06v5.05v-11.87v
TestX2
(x-load)
 1.00A 1.00A 57.00A 3.00A 0.50A790w /
710w
89.87%51.6°C /
58.2°C
6.6°C
3.32v4.98v11.96v4.99v-11.84v
TMax1
(Max)
 22.00A22.00A66.00A3.00A0.50A1137w /
983w
86.45%50.1°C /
58.8°C
 8.7°C
3.22v4.86v11.90v4.93v-11.91v


To reiterate what has already been said over on the previous page, the SP-850M has above average levels of voltage stability across the board with a fluctuation of 0.10v from idle to full load on the +3.3v rail, 0.11v on the +5v rail and 0.13v on the +12v rail. Efficiency is well above what is expected of a 'Bronze' unit with a peak of ~90% during tests 2 and 3 where quite frankly most buyers of this PSU will probably be running it at the majority of the time.

There is also room to run the SP-850M a little higher than indicated too, with our TMax1 result showing that the PSU was more than happy to pump out 983w continuously with only a small dent in the efficiency and voltage stability results.

Silver Power SP-850M 850W Scope Results @ 50c
  +3.3v +5.0v +12v
Test1
(25%)
Silver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU Review
Test2
(50%)
Silver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU Review
Test3
(75%)
Silver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU Review
Test4
(100%)
Silver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU Review
TestX1
(x-load)
Silver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU Review
TestX2
(x-load)
Silver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU Review
TMax1
(MAX)
Silver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU ReviewSilver Power SP-850M 850W Modular PSU Review


WOW! Can we get a defibrillator in here, because it would appear that the SP-850M just flat-lined and is in need of some resuscitation! In case you are wondering, this is an extremely good result as the ripple results above refer to the small fluctuations in voltage that occur in all PSU's on a millisecond scale. Large quantities of ripple on a PSU can damage or kill components in your PC over time and therefore for a PSU to output such insignificant levels of ripple across most of the testing is simply amazing. So amazing in fact that I had to triple test the unit and even plug in a different PSU just to make sure that my scope hadn't gone wonky.

Well done Silver Power! Now let's move on to the conclusion...

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Most Recent Comments

19-06-2012, 06:45:55

tinytomlogan


It's been a few years since the angry ape first made its debut on OC3D, now it's finally back for some second helpings.

Continue Reading

19-06-2012, 06:51:38

Josh Weston
Not everyday that you see a company underrate it's product for so much. Still, 100 for a bronze rated 850watt would seem a little much to me. 100 for a gold rated 850 watt...that's a bargain and a half.

19-06-2012, 06:53:11

tinytomlogan
Quote:
Originally Posted by Josh Weston View Post

Not everyday that you see a company underrate it's product for so long. Still, 100 for a bronze rated 850watt would seem a little much to me. 100 for a gold rated 850 watt...that's a bargain and a half.
100 for gold? Id be worried mate not happy.

19-06-2012, 06:55:23

Josh Weston
Quote:
Originally Posted by tinytomlogan View Post

100 for gold? Id be worried mate not happy.
Be worried that your Bronze rated PSU was over-performing when it came to efficiency?

19-06-2012, 06:59:55

Rastalovich
I used to buy Silverpower alot when the majority of systems only needed 400-500w. Very underated company imo, and not one to blow their own trumpet. Decent pricing verging on budget.

... gorilla ... what were they thinking ??

19-06-2012, 07:13:44

PetrolHead247
Wow, what an absolute bargain!

19-06-2012, 07:21:41

mArTyN
Nice review.............an exceptional buy !

19-06-2012, 07:27:15

Rastalovich
I was just going to comment on price, with something to the effect of "Corsair are about the same price and I've been buying their 750w+ for a while now..." Until I went to the Scan website. The Corsair Enthusiast is about the same price - but when the fudge was the AX850 145+ ??? I never paid 145!

19-06-2012, 07:30:13

Josh Weston
Quote:
Originally Posted by Rastalovich View Post

I was just going to comment on price, with something to the effect of "Corsair are about the same price and I've been buying their 750w+ for a while now..." Until I went to the Scan website. The Corsair Enthusiast is about the same price - but when the fudge was the AX850 145+ ??? I never paid 145!
I did for mine

19-06-2012, 15:19:16

yassarikhan786
Really fantastic performer and for that price it is an amazing deal. It should really be labelled as a Silver rated PSU given how efficient it is !!!

19-06-2012, 20:36:48

Excalabur50
Its a suprising performer in sheeps clothing and the Gorilla is a Silverback thats why they used it to fit in with their name

25-06-2012, 10:01:56

CrissTM
I've had a SP500 500W and use with a C2Q8200 oc-ed and 2xAsus HD4850 in crossfire both oc-ed and had no problems what so ever. So those things are more than capable.

27-10-2012, 19:13:11

MiiX
How is the noise for the PSU at 50%-ish load? Going for a 650W myself in the same series, SP-S650M.

28-10-2012, 08:19:58

SnW
What does that Gorilla stand for , POWER ? (yea a bit of a duh! moment) looks a bit weird...
great performing PSU NO doubt !
Reply
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