Guys,
The Stickies are provided for everyone's benefit, so that we don't have to repeatedly post the same answers. Nevertheless, overclocking and temperatures are about Intel's voltage and thermal specifications, and not exceeding them. There are many variables, so let's go over the basics.
Core 2 Quad's have a single CPU temperature sensor (Tcase), and four Core temperature sensors (Tjunction). For the Q6600 G0, Intel's Thermal Specification is 71c, which is shown in their Processor Spec Finder -
http://processorfinder.intel.com/details.aspx?sSpec=SLACR
71c is maximum CPU temperature (Tcase Max), NOT Core temperature, which is a common misconception among many users. Also, there's a 5c Gradient between CPU temperature (lower) and Core temperature (higher), which is shown in the following Intel document -
http://arxiv.org/ftp/arxiv/papers/0709/0709.1861.pdf
Although maximum Core temperature (Tjunction Max) is 100c, which is for Throttle and Shutdown protection, the corresponding CPU temperature would be 95c; far too hot for sane operation. As such, CPU temperatures above 71c and Core temperatures above 76c should be considered as an "overtemp" condition.
Q6600 G0 specs:
Vcore Max 1.5
Tcase Max (CPU temp) 71c
Tjunction (Core temp) 76c
SpeedFan shows CPU temperature AND Core temperature, while Real Temp shows Core temperatures ONLY. Both programs allow calibrations. Intel has stated that the Digital Thermal Sensors (DTS) used for monitoring Core temperatures are accurate at very high temperatures, become less accurate as temperatures decrease, and may be unreliable at idle temperatures.
On the other hand, the Analog Thermal Diode used for monitoring CPU temperature is linear from idle thru high temperatures, which is why, as per agreement with Intel, motherboard manufacturers do not include Core temperature in their monitoring utilities found on the installation disk, such as Asus Probe.
Never assume that default temperatures are accurate. The accuracy of CPU temperature is determined by BIOS calibrations, but can be closely calibrated in SpeedFan. The accuracy of Core temperatures are determined by Intel factory calibrations, but can be closely calibrated in SpeedFan and Real Temp.
Prime95 Blend, or OCCT (Linpack), or CPU Burn Test (LinX) are cyclic workloads, which produce fluctuating temperatures. While these are useful for stability testing, they're inappropriate for thermal testing. Prime95 Small FFT's is the standard for thermal testing, because it's a steady-state 100% workload. Since thermal saturation is reached within 7 to 8 minutes, a 10 minute test is adequate. Keep in mind that ambient temperature is a major variable, and even the most processor intensive games or applications will rarely exceed 70% to 85% sustained workload.
From the
Core i7 and Core 2 Temperature Guide:
http://www.tomshardware.com/forum/221745-29-sticky-core-core-temperature-guide
Scale 3: Quad
Q9x50:
Tcase Max
71c, Stepping
E0, TDP 95W, Idle
16W
Q9x50:
Tcase Max
71c, Stepping
C1, TDP 95W, Idle
16W
Q9400:
Tcase Max
71c, Stepping
R0, TDP 95W, Idle
16W
Q9300:
Tcase Max
71c, Stepping
M1, TDP 95W, Idle
16W
Q8x00:
Tcase Max
71c, Stepping
R0, TDP 95W, Idle
16W
Q8200:
Tcase Max
71c, Stepping
M1, TDP 95W, Idle
16W
Q6x00:
Tcase Max
71c, Stepping
G0, TDP 95W, Idle
16W
<--Q6600 GO
-Tcase/Tjunction-
--70--/--75--75--75--75-- Hot
--65--/--70--70--70--70-- Warm
--60--/--65--65--65--65--Safe <--
--25--/--30--30--30--30-- Cool
Any questions?
Comp
- something like a big hole ar the side door, and the fans from the radiators take the air from inside and throw it outside the case - so you will have less dust inside the case, and you can install a BIG fan at the side door - chech a plus xblade case, you will understand.
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