Guide to Overclocking the Core I7 920 to 4.0ghz - Page 4 - Overclock.net

Lord Xeb · 07-18-09

TL;DL But I will definately look at it tomorrow. Too tired right now but from a quick glance it looks good!

Dyson Poindexter · 07-18-09

Quote:

Originally Posted by chadamir

whats the code? Whats your bclk?

I forgot which one, but I think it was the x101 error. Bclk is 191, and my multi is 21. Sometimes it pops down to 20 though, which upsets me considering the TDP protection is disabled in the BIOS.

Thanks for your help. I'll note the exact code when it happens again.

Wadkiller · 07-18-09

When running a higher Uncore & QPI what voltages would be required to get stability?

chadamir · 07-18-09

Quote:

Originally Posted by Dyson Poindexter

I forgot which one, but I think it was the x101 error. Bclk is 191, and my multi is 21. Sometimes it pops down to 20 though, which upsets me considering the TDP protection is disabled in the BIOS.

Thanks for your help. I'll note the exact code when it happens again.

at 1.115 you are not going to hit 4ghz The best chips do it at ~1.17.

Quote:

Originally Posted by Wadkiller

When running a higher Uncore & QPI what voltages would be required to get stability?

QPI/Uncore (vtt). QPI has little to no effect on system performance and uncore is a ***** to get stable as far as my efforts have gone.

Dyson Poindexter · 07-18-09

Ok, I switched to 211x19 to avoid the throttling and the dreaded 20x200 instability.

I got it mostly stable by setting vcore to ~1.19 in the bios. CPUZ would show 1.200 idle and 1.184 under load. That's vdroop, right? I enabled LLC and now it's 1.208 idle and load. Will LLC hurt the chip at 1.208? I've heard that it can cause voltage spikes, but the vcore is still pretty low. (and I bet I can take it lower since it was almost stable at 1.184 load)

*CyberDruid* · 07-18-09

Thanks for the guide. I might just have to clock up my i7 now.

SlicketyRickety · 07-18-09

I stopped reading after i read D0's are better then C0's. Biased opinions make a crappy guide

chadamir · 07-18-09

Quote:

Originally Posted by Dyson Poindexter

Ok, I switched to 211x19 to avoid the throttling and the dreaded 20x200 instability.

I got it mostly stable by setting vcore to ~1.19 in the bios. CPUZ would show 1.200 idle and 1.184 under load. That's vdroop, right? I enabled LLC and now it's 1.208 idle and load. Will LLC hurt the chip at 1.208? I've heard that it can cause voltage spikes, but the vcore is still pretty low. (and I bet I can take it lower since it was almost stable at 1.184 load)

Unless you're doing some extreme voltages, you should be fine. I've never read about anyone frying a chip because of LLC. I think you'd hear more about it from intel or mobo manufacturers if it was an actual problem. Besides if you cut your chips life down from 10 to 5 years are you going to care?

chadamir · 07-18-09

Quote:

Originally Posted by SlicketyRickety

I stopped reading after i read D0's are better then C0's. Biased opinions make a crappy guide

As I said, I've owned both. My d0 is much better than my c0. Sorry

Thanks for stopping by to troll though.

Dyson Poindexter · 07-18-09

Quote:

Originally Posted by SlicketyRickety

I stopped reading after i read D0's are better then C0's. Biased opinions make a crappy guide

I don't think it's biased if the statement is backed by empirical evidence. D0's are newer, and have been shown to clock higher with less voltage. I would consider that "better."

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Guide to Overclocking the Core I7 920 to 4.0ghz

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