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19 Posts
Hi all!
Long time reader, occasional poster.
Recently picked up an 920 d0 (specs in the sig) to replace my "aging" Q6600.
The first thing I... does anyone wanna take a guess?
... Ok, enough with the bad jokes... I'll skip to the good/bad part.
Overclocked it to 3.6Ghz @ 1.264 vCore without any issues... 3.7 required a bump to 1.298, and 3.8 @ 1.312. All have passed Prime95 and have been stable. So I tried my luck and went for 3.9 Ghz. My first pass of P95 crashed 30 minutes in. I didn't want to increase my vCore as it it already @ 1.337 in the bios (1.312 in Windows under load), so I lowered my UCLCK Multi to 17x instead of 18x, and currently it has been P95 stable for 50 mins. I feel that I picked up a bad batch/chip because most d0 owners can get 4Ghz with 1.20-1.25 vCore, not to mention that my temps are 67-73 depending on the core. Thoughts?
The following are my settings in bios... maybe some of the veterans OCers can help
Cheers!!
CPU ratio = 20
BCLK frequency = 195
PCIE frequency = 100
DRAM Multi = 6x
DRAM frequency = 1171MHz
DRAM timings = 7-7-7-20
UCLK Multi = 17x
UCLK frequency = 3315MHz
QPI Multi = 36x
QPI link data rate = 7020MT/s
CPU voltage = 1.33750V (Bios)
CPU PLL voltage = 1.88V
QPI/DRAM core voltage = 1.35V (I think, I'll have to double check)
IOH voltage = 1.2V
ICH voltage = 1.2V
DRAM bus voltage = 1.64V
Load line calibration = enabled
Intel HT = Disabled
Intel Speedstep = Disabled
Execute disable bit = enabled
Long time reader, occasional poster.
Recently picked up an 920 d0 (specs in the sig) to replace my "aging" Q6600.
The first thing I... does anyone wanna take a guess?
... Ok, enough with the bad jokes... I'll skip to the good/bad part.
Overclocked it to 3.6Ghz @ 1.264 vCore without any issues... 3.7 required a bump to 1.298, and 3.8 @ 1.312. All have passed Prime95 and have been stable. So I tried my luck and went for 3.9 Ghz. My first pass of P95 crashed 30 minutes in. I didn't want to increase my vCore as it it already @ 1.337 in the bios (1.312 in Windows under load), so I lowered my UCLCK Multi to 17x instead of 18x, and currently it has been P95 stable for 50 mins. I feel that I picked up a bad batch/chip because most d0 owners can get 4Ghz with 1.20-1.25 vCore, not to mention that my temps are 67-73 depending on the core. Thoughts?
The following are my settings in bios... maybe some of the veterans OCers can help

Cheers!!
CPU ratio = 20
BCLK frequency = 195
PCIE frequency = 100
DRAM Multi = 6x
DRAM frequency = 1171MHz
DRAM timings = 7-7-7-20
UCLK Multi = 17x
UCLK frequency = 3315MHz
QPI Multi = 36x
QPI link data rate = 7020MT/s
CPU voltage = 1.33750V (Bios)
CPU PLL voltage = 1.88V
QPI/DRAM core voltage = 1.35V (I think, I'll have to double check)
IOH voltage = 1.2V
ICH voltage = 1.2V
DRAM bus voltage = 1.64V
Load line calibration = enabled
Intel HT = Disabled
Intel Speedstep = Disabled
Execute disable bit = enabled
