Question Is CPU failing, and causing overheating?

[larryh1012]

i have a toshiba laptop l655. It overheats, shutsdown, reaches a temp of 80 c, then shutsdown. Can't really function.
Ran Intel Processor Diagnostic Tool 64 bit. It failed twice, at prime number test, and aborted. Then ran the tool on another toshiba laptop, and it passed.
So my question is, would replacing the cpu be the solution to my problem?

 

[UsandThem]

That's a laptop from 2011, so I wouldn't put any money into it (unless it was something cheap like RAM or hard drive).

Plus, I believe that CPU is soldered to the motherboard, and is not replaceable.

https://ark.intel.com/content/www/u...ore-i3-2310m-processor-3m-cache-2-10-ghz.html

 

[larryh1012]

since i checked the cpu with Intel Processor Diagnostic Tool 64 bit , and it failed, is there any diagnostic tool i can use to check the motherboard as well? Just wondering if the motherboard is failing as well, since the tech who sold me the laptop insists that he checked the cpu, and it was not failing...?? He says its the logic board, or motherboard and wants to sell me another laptop. Btw, the chip is not soldered to the board.

 

[UsandThem]

since i checked the cpu with Intel Processor Diagnostic Tool 64 bit , and it failed, is there any diagnostic tool i can use to check the motherboard as well?

Nope, there is no software utility to test a motherboard. It could be something like capacitors are beginning to fail/go bad.

A 10 year old laptop motherboard has dealt with a lot of heat, so it definitely could be a possibility as being the issue.

 

[Fardringle]

If it hasn't already been done, I would definitely clean the decade old thermal paste (probably powder by now) off of the CPU and heat sink and replace it with something good to see if that helps. Also give the fan and vents a thorough cleaning with compressed air and make sure that the fan is actually blowing when the laptop is turned on.

 

[chrisjames61]

i have a toshiba laptop l655. It overheats, shutsdown, reaches a temp of 80 c, then shutsdown. Can't really function.
Ran Intel Processor Diagnostic Tool 64 bit. It failed twice, at prime number test, and aborted. Then ran the tool on another toshiba laptop, and it passed.
So my question is, would replacing the cpu be the solution to my problem?

You need to take it apart. Clean the cpu fan of dust. Blowing it out preferrably. Remove the heatsink/heatpipe. Clean off the old thermal paste and reapply a quality thermal paste and reassemble it.