Hi overclocking Sifus and Gurus,

I have a I7 930 and Asus P6T, coupled with Kingston HyperX DDR3 2000Mhz 6GB, and have achieved the following results



My voltages are as followed:

CPU: 1.3V
QPI/VTT: 1.375V
CPU PLL: 1.88V
IOH and ICH both at 1.2V
DRAM: 1.65V

Others at "Auto"

Prime stable at 8hrs

As you can see, my temp is actually quite good, and i believe i can lower the vCore further.

However, when i tried overclocking it to 4Ghz (200x20), it would crash within first 10min of prime. I have tried increasing the vCore to as high as 1.375 but without much success.
The BSOD code i got is 0X050, 0X04E and some other weird 2 digits error.
Pls shed some light on my situation. Thx.

This post has been edited by hypermax: Jan 12 2012, 01:09 PM

Finally, 4Ghz


But the ram speed and timing is a bit weird. Also, my multiplier refuses to go above 19.

Actually, i realized that the BSOD code is not absolute. When i got 0X3D, i actually bumped up my QPI/VTT, and problem solved.

Btw, can anyone teach me how to optimize my ram?

Can, but in order to run a DDR2000 9 10 9 27, VTT needs at least 1.6. Kinda afraid to push my VTT so high

However, i have read in Xtremesystem forum, some people actually claimed that 1.6 is ok for day to day usage.

I see. Thanks for the info. I am also afraid of burning my chip, thus settle for VTT 1.35

Btw, Kingston hyperX XMP profile actually calls for 1.7 VTT

This post has been edited by hypermax: Jan 14 2012, 10:01 AM

Kinda wasted actually, DDR2000 can only run at DDR1691 on my board, kinda pity.
But then again, CPU speed is most important