Core i7 Overclocking by Batch #

[Filip]

It's my first post here, but that doesnt matter


Here is my PC:

Asus P6T Deluxe V2
Intel Core I7 920 D0 - batch 3927A448 (crap)
Coolermaster Hyper 212Plus, with MX2
Asus HD5870
Kingston HyperX DDR3 1600 6GB
Gigabyte Odin Pro 800W PSU
and so on


Problem i have is, i can only succesfully clock this CPU using the 21 multiplyer. Today I've put the newest bios for the board in (0901), it says it increases board stability, and it does, sort of.

To get to 4Ghz i run:

CPU VCore - 1.3000V
QPI - 1.27500
IOH - 1.14
ICH - 1.10
CPU PLL - 1.80
LLC - On

Temps are 72C max with Core 0 being the highest after runing 15 passes of Intel Burn test on High.


Thing is, whatever i try with the board settings, 1.29375 is half stable so it doesnt matter. Using the 20 multiplyer, i can see many people have trouble, i need more CPU voltage (1.33 wasnt stable). Using 19 x 210, it just wont boot, no matter what i try in the settings, ram, voltage, timings, pcie, crap. The ram is stable up to 1800Mhz so that is no problem.

So i got two questions:


1) Why does it still randomly crash, sometimes in IE, sometimes in Games, sometimes on desktop - just freezes even though i did 10 passes of IBT on high?
2) Why cant i even boot at 210 BCLK?


Man it's driving me nuts