New Intel Xeon Steppings on the Way

"Intel Xeon 5100 and 5300 receive minor enhancements "

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Intel Xeon 5100 and 5300 receive minor enhancements

Intel has issued notification to its partners regarding stepping changes to dual-core and quad-core Xeon processors. The changes will affect 5100 Woodcrest and 5300 Clovertown processors and bring them to a stepping G0, which introduces energy efficiency and virtualisation enhancements.

Stepping G0 reduces power consumption during C1E halt states. Intel does not state how much less power stepping G0 processors consume in idle states except “some amount.” Intel improves VT technology in stepping G0.

The enhancements include:
  • APIC Task Priority Register (TPR) Virtualization
  • NMI-window exiting
  • Advanced VM-exit information for INS & OUTS
All stepping G0 processors will receive new CPUIDs. The Clovertown CPUID will change from 06F7 to 06FB while Woodcrest changes from 06F6 to 06FB. Stepping G0 processors will also receive new SSPEC numbers.

Stepping G0 processors will require a BIOS update with new microcode for proper identification. However, with the proper microcode update, users should be able to mix and match processor steppings in multi-processor configurations.

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Most Recent Comments

10-06-2007, 18:37:30

That is a brilliant story Nick! Really enjoyed reading it!
And Yuss, Im looking forward to pictures! :o

10-06-2007, 20:39:00

Interesting read. I've fixed comps for a few friends, but nothing as bad as that.

11-06-2007, 11:43:39


I'm replacing the motherboard (and because nobody sells socket A crap anymore, a CPU too), with a 3100+ Sempron 64.

After I'm done it'll be..

Sempron 64 3100+ s754
ECS Via Mobo
2x512MB PC2700
5200 Ultra 256MB
TT TR2 430w

Nice little rig, big upgrade too.

I managed to get my hands on an ASRock KT7 pro thingy jangle, was a good thing I still had a proccy cos them Semprons just don`t cut it imo.

It`s too bad u`r not in the UK too coz I coulda sorted u out with a bunch of pc3200 and an Athlon 1600+ *I think* - hehe might be faster than the Semp (j/k)

Bulging caps tho - there`s no point in trying to salvage a mobo when u notice that.

11-06-2007, 13:57:58

not all little shops are crap. I used to be the workshop manager for one and sure as hell made sure things worked before they went out and if the customer had a problem, made sure it was fixed.

One rule we stuck by which i think made us different (and better) than others is that we always told the truth, never tried to make techy crap up like alot of others do.

11-06-2007, 19:50:46

Yeah some of these PC shops are horrible, but some aren't too bad.

Anyway, the PC is going from..

AXP 2700+ Tbred --> Sempron 64 3100+ s754

ASUS KT400 --> ECS K8M800-M2

2x512MB PC2700

120GB WD 7200RPM ATA --> 80GB WD 7200RPM SATA 8MB Cache

Apollo 5200 Ultra 256MB

TurboLink 350w --> Thermaltake TR2-430w PSU

TT Silent Boost K7 --> CoolerMaster Alu. Heatsink

Overall it should turn out to be a really nice rig :) K7 to K8 should be a noticeable difference. Sempron's kick the butt out of Socket A stuff.

Much much better than it was. Getting cash & ordering parts Friday. I take pride in my builds & repairs for customers so, pictures will follow.

13-06-2007, 06:04:57

Not bad Nick, keep teaching people the evils of shop-bought cr@p :p

14-06-2007, 02:04:14

PP Mguire

Overall it should turn out to be a really nice rig K7 to K8 should be a noticeable difference. Sempron's kick the butt out of Socket A stuff.

Not all the time. If that was an nF2 Ultra chipset running that 2700 in dual channel i would say the 2700 would be better. My old AXP 2600+ with 1.5gig dual channel 2700 ran ALOT faster than my sisters Sempron 2800+ (S754) with 2gig PC3200.

14-06-2007, 02:56:01

The worst thing I've ever seen was when someone brought a fairly new PC to me that was bought from a very large company.

The PC wasn't detecting a hard disk, so I opened it up and found a hard disk in an anti-static bag, selotaped to the inside of the case!!

14-06-2007, 03:42:36

ahahahhaha, wtf. how poor is that!

14-06-2007, 03:54:15

:p :p thats great lol :D

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