Core i7 Overclocking by Batch #

[JakFrost]

I have the chip below and I'm having serious problems with BLCK being only stable at 180 at CPU 1.20V with Prime95 25.9 (x64) Blend for 11-hours+ with temperatures of 80C peak, 40C idle on RealTemp 3.0 and ambient 29C outside.

Processor: Intel Core i7 920 2.66 GHz
Revision: D0 (SLBEJ)
FPO/Batch#: 3901A238

Date of purchase: 2009-06-29
Place of Purchase: Newegg.com

When I have more time I'm going to try to see if I can get 190 to work. From my short testing today anything at BLCK 200 MHz even with CPU V 1.45 and QPI 1.45 ends in immediate freeze within 15-seconds while doing Prime95 SmallFFT test. I think that it might be my processor, memory, or something else in the equation.

(Update: I did testing and my maximum voltage is 1.250 V which hits temperature peak of 94C for my air cooling setup. At this voltage BCLK 180 is stable but 190 is not and leads to a freeze within minutes. I have settled on 3.60 GHz at BCLK 180 x Multi 20. Might test BCLK 185 for 3.70 GHz but I don't have much hope without bumping voltage up.)

I have my own overclocking thread below with the details of the problems I'm having. It might just be my inexperience with overclocking since my last attempt on AMD Opteron 175 2.2 GHz only ended with 2.5 GHz 3D game stable, and 2.75 GHz 2D prime stable.

HardOCP - Overclocking Air: Intel i7 920, Asus P6T, G.Skill DDR3-1600 C8, Xigmatek HDT-1284E