Motherboard or CPU dead?

paul1985

paul1985

paul1985

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Joined
30 Dec 2010
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13
Bit of a disaster today. Without noticing I have left the room only for a stray cable to have got caught in the cpu fan and stopped it turning. The computer has presumably got pretty hot and tuned itself off. I cannot be sure if this was due to setting a cutoff point for the cpu temperature or that it has just got so hot that it is kaput. The latter is more probable.

Whilst I would presume the cpu to be the culprit I have no similar socket cpu to switch in as a test. Having tested everything else, different psu, monitors swapped ram, graphics cards and observed that the cpu fan, gpu fan and ram led light are on I am hoping that the motherboard is not the problem.

Given those facts is it fair to assume that the problem is the cpu. Any other tests or procedures i can perform? Any way to recover from an overheated cpu?

Like I say, the fans turn on, the graphics card fan included but ultimately no signal to the monitor.
 
i thik most likeyly its the cpu, i think this because the psu is running power through the motherboard to spin the fans, and if a cpu overheats like that youll be lucky to revive it

something simaler happend to the celeron i had, i changed from the stock cooling. set it all up properly, it worked for an hour then froze.
i checked bios for temps hitting 100 degreese. turned out my cpu fan had burnt out.

but yes new cpu is your best bet
 
You won't be able to tell...

Not unless you had a cpu that fitted your mobo... and if tried and worked you know its the cpu that has blown and not the mobo... if not then you took your mobo out!

The only way to tell if you have taken the cpu out (without knowing if you've blown the mobo) is to test it in another mobo... if works then it works... if not its blown.

I reckon your CPU fan stopped, your CPU overheated and then either your CPU blew, your Mobo blew (because of this) or both. But above is the only way to tell what is blown!

You can get a circuit off a mobo and all fans spin up and everything so it can look like it works but at the same time with something like you did you can send a current through it that wipes the bios chip/cmos so it might be the bios!
 
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are there no lights or beeps to help you diagnose the issue? You normally get some sort of POST test/code that would tell you if the mobo thought there was no CPU there which would be the fault.

To be honest if its tunring on I'd guess its not the mobo but I've cooked all sorts of CPUs with broken pumps on watercooling/failing fans etc and never managed to kill one. It was my understanding most decent mobos had a thermal cut off along with the cpu which would then point to potential damage of the mobo socket if its all got too much for it and something has burned out.

What cpu/mobo is it?
 
That cpu technically should shut down itself. Heat might of cooked something on the board though. Only way to see is to test with another board/cpu.
 
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