Overheating CPU can't figure out which component is failing?

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pratt.sawant

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Oct 16, 2017
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The system consists of
Processor - AMD A4-7300
Motherboard - Gigabyte GA-F2A68HM-DS2
RAM - kingston HyperX 4gb ddr3

motherboard is a warranty replacement that i received from gigabyte and I am not completely sure if it is new. Processor and RAM is brand new out of the box.

The problem: The system powers ON for few minutes, showing normal temps and voltage, after which it abruptly shuts down and restarts. This shut down & restart cycle continues for some more time and finally the display goes blank.

Thinking the HSF must be causing this, I removed it and placed it back. Powered ON the system and got the PC to boot into windows. There I checked for voltage and temps. And discovered the CPU was running at 100° c !!

The CPU is overheating (causing the system to shut down and restart). I don't know which component is malfunctioning - is it the motherboard or the CPU?

What should I do to find this out?
 
Solution
Danra
You should purchase some good TIM [thermal paste], remove the old TIM and apply a spot in the middle of the cleaned CPU lid [IHS] no larger than a small pea. Prior to rebooting the computer, remove the CPU heatsink and look at the CPU to see if it is fully covered by TIM. To much or to little TIM can cause heat issues.

The following are some good TIM:

Thermal Grizzly Kryonaut
GELID GC-EXTREME
Arctic Cooling MX-4

One place you can get ArctiClean: https://www.newegg.com/Product/Product.aspx?Item=N82E16835100010&cm_re=arcticlean-_-35-100-010-_-Product

For proper removal of TIM I use ArctiClean, a paper towel, one or two coffee filters, 91% Alcohol. Remove the heat sink and CPU. Place them on a flat surface on thin cardboard or...
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pratt.sawant

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Oct 16, 2017
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The heatsink came preinstalled with thermal paste on it, so I did not. Though it did get smugded a little when I reinstalled the heatsink couple of times later. That did make no difference to the temp or the abrupt shutdowns. I am still locking for answers.
 
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Danra

Danra

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May 25, 2005
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You should purchase some good TIM [thermal paste], remove the old TIM and apply a spot in the middle of the cleaned CPU lid [IHS] no larger than a small pea. Prior to rebooting the computer, remove the CPU heatsink and look at the CPU to see if it is fully covered by TIM. To much or to little TIM can cause heat issues.

The following are some good TIM:

Thermal Grizzly Kryonaut
GELID GC-EXTREME
Arctic Cooling MX-4

One place you can get ArctiClean: https://www.newegg.com/Product/Product.aspx?Item=N82E16835100010&cm_re=arcticlean-_-35-100-010-_-Product

For proper removal of TIM I use ArctiClean, a paper towel, one or two coffee filters, 91% Alcohol. Remove the heat sink and CPU. Place them on a flat surface on thin cardboard or thick [from a box] paper. Use the paper towel to remove most of the TIM from the CPU and cooler. Apply 3 drops of ArctiClean 1 on the CPU use a coffee filter to rub it on and around the CPU lid [IHS] to dissolve the old TIM then, again with the coffee filter remove the ArctiClean 1. Then apply 3 drops of ArctiClean 2 to the CPU IHS and rub it on to dissolve and remove left over ArctiClean 1. Then apply 3 drops of alcohol and rub it around and off to remove any trace of ArctiClean. Repeat the same with the CPU cooler, except use 4 drops of each instead of 3. This will clean the surfaces to factory new condition. - Then apply the new TIM.

Old TIM can cause heat build up do to several causes, two of which is chemical break down, seperation or gaps or cracks caused by heat and age [and you have exacerbated the latter by removing the heat sink a few times].

What cooler are you using?
What RPM is the CPU cooler fan running?
Those are two vital questions that need answered.

Download HWiNFO to find fan speeds. Use HWiNFO64 if you are using a 64 bit operating system, HWiNFO32 if a 32 bit OS. https://www.hwinfo.com/download.php

To find which you are using, in Windows 10 the procedure is much more complex than Win 7 https://www.youtube.com/watch?v=ic5bUjeOmec

Please do the above and reply here with your results.
 
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Solution
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Bungle11

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Aug 24, 2015
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4,860


'Though it did get smugded a little when I reinstalled the heatsink...'

So you rubbed off of of the paste, on what i assume was already a crappy cooler and paste combo. And you wonder why your system is overheating. You should have checked this before posting.
 
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