Core i7 920 rev D0 stepping 5 :)

[momoto]

Outstanding numbers here, congrats!
How about LinX or Prime run on this settings?

hi Kimofil

I think that I rise in temperature too much.
The way to paint grease was bad.
The heat spreader of it and CPU is not flat.

However, it is good CPU.


It has cooled it with single stage　


Limit of mother board 　　 It resets it even if stepping up the voltage.
　

[Sparda]

Some love from a vcore hungry chip. Ambient ~25°c-26°c

[MACMAC]

Some love from a vcore hungry chip. Ambient ~25°c-26°c

This should be an obvious question by now, but what's the batch?

[MACMAC]

Having third one coming next week from 3845A935. Hopefully it not a sucky chip.

I've got...a few of those coming next week too

[Sparda]

This should be an obvious question by now, but what's the batch?

That my first xeon chip from 3844A704. My second one from 3848A352 wasnt doing any good because I got a leaky one. Having third one coming next week from 3845A935. Hopefully it not a sucky chip.

[MACMAC]

Err...how is my reply above yours?

[Sparda]

Err...how is my reply above yours?

lol some typo and I just delete it.

[Nazar]

Hi guyz!
Has someone tried 975 batch 3901а299?
My 3851А333 did only 5150 @ LN2 for Wpr32

[Sparda]

No wonder it hard to find this batch here.

I've got...a few of those coming next week too

You gonna like it mate.

[phsinc1]

I found on intel web site,
W3520 D0 SLBEW
VID Voltage Range 0.800V-1.225V
http://ark.intel.com/Product.aspx?id=39718

I7 920 D0 SLBEJ:
VID Voltage Range 0.800V-1.375V
http://ark.intel.com/Product.aspx?id=37147

[Anubi]

Sparda, what are you using for cooling?

[Sparda]

Sparda, what are you using for cooling?

Just a water. Comfortable ambient 25°C-26°C help a bit too.

[rge]

Sparda, that is a sweet OC on the xeon. What vtt did you need for 4.55 and 4.2?

[Sparda]

Sparda, that is a sweet OC on the xeon. What vtt did you need for 4.55 and 4.2?

That from 2 different chip. The 4.55GHz(3844A704) use 1.475 vtt and the 4.2GHz (3845A935) use 1.38v vtt. Havent test the 3845A935 properly yet but it suppose to clock nicely.

[tekjunkie]

Aww!!get the bug off your sig. LOL, I seriously thought there was a bug on my monitor before I realized it!! Silly me.

[jcniest5]

That from 2 different chip. The 4.55GHz(3844A704) use 1.475 vtt and the 4.2GHz (3845A935) use 1.38v vtt. Havent test the 3845A935 properly yet but it suppose to clock nicely.

I'm very confused because people keep refering to VTT, is it different than VCore and QPI?

[Sparda]

I'm very confused because people keep refering to VTT, is it different than VCore and QPI?

Sry..I'm lazy to type it but its obviously qpi/vtt.

Aww!!get the bug off your sig. LOL, I seriously thought there was a bug on my monitor before I realized it!! Silly me.

oh..leave it alone. It has been happily live there for more than a year.

[jcniest5]

Okay, got it...thx. Can you explain to me what QPI Voltage does to your OCing? How does it work in relevent to Vcore or Vdimm/DRAM Voltage?

[Sparda]

Okay, got it...thx. Can you explain to me what QPI Voltage does to your OCing? How does it work in relevent to Vcore or Vdimm/DRAM Voltage?

No idea but what I know is it is an uncore voltage since I need to change it for a different uncore frequency at the same bclk.
Not sure on other motherboard but on gigabyte I find them independant on other voltages at least for a normal oc.
Usually after I find the final qpi/vtt for specific uncore speed ; I didnt touch it anymore. >>> qpi/vtt I hope that helps.

[Jakethesnake011]

This is my overclock so far with an hour with my New chip. I can not get into the 4.3's without a Vcore of 1.4's is that the norm?

[Fafeifa]

This is my overclock so far with an hour with my New chip. I can not get into the 4.3's without a Vcore of 1.4's is that the norm?

My xeon needs 1.35 to run at 4.3ghz but be happy your cpu is better than some and worse than others.

[Drake22]

hi guys
i can get 920 d0 3847A938

anyone heard anything about this batch?

[no_n|ck]

I have a chance to get 3845B220 but there is no data on the net about it. Im just speculating that sub 385 are good clockers, especially B batches.. atm mine 3850A769 is doing medi-core OC of 4.2Ghz@1.32V.. should I take a risk and bought another one and sell this one? only thng that worries me that it will not perform to my expectations

[Viss]

Only 1 way to find out. I would test 45B anyways.

[MACMAC]

I have a chance to get 3845B220 but there is no data on the net about it. Im just speculating that sub 385 are good clockers, especially B batches.. atm mine 3850A769 is doing medi-core OC of 4.2Ghz@1.32V.. should I take a risk and bought another one and sell this one? only thng that worries me that it will not perform to my expectations

Definitely test the 3845B, you will likely be able to do 4.2Ghz at 1.25V or less.