Overheating and prevention.

March 2, 2009 at 11:40:49
Specs: Windows XP Home, Intel Core 2 Quad Q6
Good evening folks,

Yesterday I noticed my processor was idling at quite a high temperature. I'll start with the specs:

Intel Quad Core Q6600
P5N-E SLI Mobo
No overclocking at all involved.

As for the temperatures.

Core 0 - 54
Core 2 - 56
Core 3 - 59

I personally felt this was to high, especially while idle. I grabbed some Thermal Compound from work, a can of compressed air and a new case fan - I was on a mission!

I removed my CPU heatsink and gave it a good clean, also removed any dust I could see throughout the machine itself. I carefully removed the old thermal paste from the CPU and heatsink, which was rather flakey and came away effortlessly, what there was of it. Whilst applying the new thermal paste, I noticed it was more like a cream.. a white cream, not the usual 'grey paste' I'm used to seeing.
Not thinking much of it, I re-fitted the heatsink and CPU fan, upon start up I noticed the temperatures were slightly worse - how fantastic.

Have I done something wrong? Upon further inspection of the thermal paste, it does say Heatsink compound, but also addresses the CPU use, have I picked the wrong one up in a hurry? The heatsink is seated correctly, and I'm actually confused, any help is greatly appreciated.

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March 2, 2009 at 11:59:53
There's nothing wrong with the paste you have, I use the "white cream" all the time. The trick is to apply it correctly. On your CPU, all you need is a dab in the center of the CPU. The amount used should be very small...usually described as roughly the size of a grain of rice. It should NOT be spread around...just leave it as a "dab", then install the heatsink.

Have a look at the Arctic Silver instructions & follow them exactly, even though you're using the "white cream".


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March 4, 2009 at 05:36:06
Thank you, I apologize for my timely reply. Just a quick question, I've re-applied the thermal paste and BIOS is claiming my CPU idles at around 40 - 45C, which I think is round about normal for my CPU. However, I've compared Coretemps and Speedfans temperature readings and they seem to be different. Speedfan is claiming my cores are idling around 55-60 and Coretemp is reading 40 - 45C+.

How exactly do these programs determine the temperatures? And are they reliable?

Thank you in advance.

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March 4, 2009 at 06:07:08
All programs use the same sensors. Just depends on how they apply the data. Most third party I have use have an offset adjustment to compensate for differences. I think the idea is the BIOS readings should be the most accurate but the BIOS readings are not generally accessable while in the OS. Hope that helps.

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