Hey guys, I have a Core i7 920 (D0 stepping) cooled by a Coolermaster Hyper 212. My mobo is a EVGA X58 (758) using the latest SZ82 BIOS. I was able to run my system stable at 3570Mhz (170x21) with default voltages. Here were some of my settings:
CPU Vcore- AUTO
CPU Frequency- 3570Mhz (170x21)
RAM Frequency- 1360Mhz (170x8)
Vdimm- 1.5V
CPU VTT Voltage- 1.15V (50mV)
HT Disabled
Now Im trying to hit 3800Mhz (181x21) but my system seems to be auto restarting when running LinX. Here are some of the settings I have tried:
CPU Vcore- I tried 1.325V-1.34375V
CPU Frequency- 3800Mhz (181x21)
RAM Frequency- 1448Mhz (181x8)
Vdimm- 1.5V
CPU VTT Voltage- I tried 1.15V (+50mV) to 1.20V (+100mV)
HT Disabled
Core Temperature readings (73, 72, 69, 68)
I ensured that the VTT is within 0.5 of Vdimm, and that VTT frequency is twice of Memory frequency. Temperatures are still within the 70's and hasn't hit 80C yet.
I mainly increased the Vcore and the VTT and it doesnt seem to be stable still.
Any suggestions on how I can get stable 3.8Ghz? It seems like I like to pump alot of Vcore and still my my system isn't stable. Suggestions or changes I need to make in the BIOS? Thanks for your help, much appreciated!
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