I'm running a Q6600 B3 with a thermalright ultra 120 w/ scythe s-flex fan. I have been running this computer at 3.0ghz @1.3125. (VID is 1.3). I decided to try to push it a little further now since the value has gone down.
I'm running 3.2ghz @1.4125. Temps under prime95 using coretemp are 64 on two cores and 54 on the other two.
Is this temperature safe? How high of a vcore is safe?
Edit: Anyone want to show your settings if using a gigabyte p35 board?
This is my System #2.
(From my records)
MA-EP45-UD3L / Q6600 G0 stepping OC'd to 3.6 GHz.
M. I. T.
Robust Graphics Booster [Auto]
CPU Clock Ratio [9 X]
CPU Frequency 3.600 GHz (400 X 9)
*** Clock Chip Control
CPU Host Clock Control [Enabled]
CPU Host Frequency (FSB) [ 400]
PCI Express Frequency [Auto]
C.I.A. 2 [Disabled]
>>> Advanced Clock
Advanced Clock [Press Enter]
These are set to default values
*** DRAM Performance Control
Perfomance Enhancement [standard]
Extreme Memory Profile.... [Auto]
(G)MCH Latch [Auto]
System Memory Mult. (SPD) [2.00B]
Memory Frequency... 800 ........800 <-- FSB X Multiplier
DRAM Timing Select ....... (SPD) [Manual]
>>> Standard Timing Control
CAS 4 [ 4]
tRCD 4 [ 4]
tRP 4 [ 4]
tRAS 12 
>>> Advanced Timing Control [Press Enter]
These are set to default [Auto] values
*** Motherboard Voltage Control
Voltage Types Normal Current
Loadline Calibration [Enabled]
CPU Vcore 1.2625v [1.4250v]
CPU Termination 1.200 v [Auto]
CPU PLL 1.55 v [Auto]
CPU Reference 0.805 [Auto]
MCH Core 1.100v [Auto]
MCH Reference 0.805v [Auto]
ICH I/O 1.55v [Auto]
ICH Core 1.100v [Auto]
DRAM Voltage 1.800v [2.100v]
Set to factory recommended values
CPU Warning Temperature [ 70 C]
CPU Fan Fail Warning [Enabled]
I have an E5200 in my G'byte P35 board.
The text editor apparently does not handle spaces and tabs well.
I suppose your 10C difference in temperature is ok...but it probably means your thermal paste isn't covering all your cores equally. It's up to you if it matters to you. I usually only see a 2-3C difference in cores.
I have the Q6600 also, not OC and paired with a XIGMATEK HDT-S1283. When I had my old case I had the fan on the heatsink blowing out the back with a 80mm rear fan. In my new case I have a top opening so I switched the orientation of the hsf so the heatsink's fan blows from the bottom and the 200mm fan is pulling from the top. I found this even out the temperatures in the 4 cores, now I only see about a 1-2 C difference whereas before I was seeing about up to 10 C (temps while idle). I'm thinking with my older case the heat was building up near the top so those two cores were a wee bit warmer then the lower two?