CPU Temperature Rising Fast

Amd Athlon 64 x2 4600+ processor
August 8, 2009 at 02:19:10
Specs: Windows XP SP3
I have an Asus AV8-MX socket 939 Motherboard. Recently I have installed a dual core CPU (AMD Athlon 64 x2 4600+ E4 2400Mhz). Upon first boot everything was working fine. But the Day after, when I have boot my PC after some minutes it Shut ed down unexpectedly. I turn it on again. Entering the Bios I saw in the Monitoring Page that the CPU Temperature was rising until it hit 71Celsious so it turned automatically off. After removing and installing again the CPU for the first Day it was OK. Next Morning when I turned on the PC the same problem with CPU Overheating has occurred. I have installed CPU in many Systems with no problem at all.
PS: The CPU bought was USED, I did not overclocked it, or changed the Voltage of it. Any suggestions?

And another question: The system Shuts Down because of the Temperature Sensors Readings? If I disable CPU Temperature Monitoring will it shut down again? I won't risk it because I am afraid that if monitoring is correct, disabling it may result in CPU burnout, since the system won't shut down.

And another thing, after the PC's Shutdown, I have touched the CPU Heatsink on the Pipes and on the plate (that it is in contact with the CPU), and it wasn't so Hot. I kept my Finger on it for long Time with no problem.

Thank you for your Valuable Time!

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August 8, 2009 at 05:01:55
You apparently didn't install the heatsink properly. The top of the CPU & bottom of the heatsink need to be thoroughly cleaned, then a small dab of paste applied to the center of the CPU. The paste should NOT be spread around. Place the heatsink on the CPU, make sure the metal clips are hooked on the mounting bracket lugs, then lock the cam lever in place. The lever takes a fair amount of force to lock down. That's all there is to it. The amount of paste is critical.


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August 8, 2009 at 08:12:06
Hello, again.

They way you described is what I have done. I have installed many CPU’s and made many upgrades to PC's. Sure many people do not now how to apply correctly the paste, but I always do it the way you have described. The bizarre thing is when I install again the CPU, for the first Day it works fine. The next day the problem occurs again. I have removed & replaced the CPU 4 Times. Always have good cleaned up the surfaces. I don't now what to do. I can't do every Day the same Procedure removing, cleaning applying Paste & installing again. I bought a new CPU Cooler (Zalman CNPS9500 AM2, 939 etc.) because I thought my former Cooler witch was ASUS Triton 77 was ineffective. How can it be for one Day no problem, the Next problem. And if I didn’t apply correct the Heatsink Paste why at the First Boot it works Normal?

Anyway Thank you for your Valuable Time and for your Advises.

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August 8, 2009 at 08:23:14
It is possible that there is a problem with the temperature sensor on the cpu(or on the cores). Have you serached google to see if that is possibly the case ? Also, have you checked other temperatures in the bios to see if they are also high, such as sytem and PWM ?

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