Have I burned my CPU?

-Arke-

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Dec 26, 2015
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Hello everyone.

Mandatory, I have never applied any CPU OC aside of what my motherboard did by itself (which is a low one and temps were never high). This said, today I moved my liquid AIO so the room was a bit more clean. Then I atached the AIO again and turned up the PC... it made " schfff" sound, turned off and smelled like something got burned.

Tried to sniff so I could see what was wrong but couldnt find it, so I turned it on and it worked fine (weird, isn't it?). I just found that fans were 100% like an airplane, so I turned it off, went to the BIOS and saw that my CPU was then 89ºC.

I'm pretty sure smething got burned, but I dont know if it was the MOBO, the CPU socket or what.

Any advices? Everything is cover by warranty so no big drama here... still I'd liek to get it fixed the sooner, the better, whatever the problem is.

Thanks in advance everyone.
 
Solution
It's also possible that an air bubble got temporarily stuck in the pump when it was being moved around, and eventually got pushed back out. That could potentially damage the pump if left unchecked, though I'm not sure if it could result in a burning smell right away.
Cpus have thermal protections that should react in time and cut off power before it burned. It might have reacted to slow if you were unlucky, but 50/50 its not very bad. Have you used fresh thermal compound ?
if not then you need to buy one, best non-conductive Arctic MX-4 or something similar and go to bios. from there basic check if all hardware is detected and memscan 86. Then go to windows and try to run stress on cpu and controll MHZ and temps.
if MHZ will not go as far as it should, it might be throttling due to burn.

in my case I had a hair that got down to cpu and fried. Smelled like shit and made me panic a bit :)
 


It didnt burned while working... It did as soon as I turned it on, before even the BIOS screen. Doesnt seem a heat problem but a malfunction of some kind I'd say. Got 0 idea on that field though, but an overheating should have needed some time, shouldn't it?
 


Remove the AIO and see are there any physical burn marks on the metal of the AIO or the CPU
 
It could be that the liquid cooler failed. If the cooler's pump failed, then you might expect to see high temperatures like that. And of course, make sure the pump cable is plugged in correctly. If it is working as designed, then you should be able to feel the pump vibrating while the system is on.

Another possibility might simply be that you didn't mount the cooler properly, preventing it from making proper contact with the CPU. It's probably worth remounting it again, with fresh thermal compound to see if that makes a difference.

I wouldn't expect damage to the CPU or motherboard to result in increased temperatures. More likely, the system just wouldn't boot, or would be unstable.
 


Sorry about that. My bad
 
Well, I've left it stay for a while then turned it on... everything seems to be working as intended now. No high temps, no failures. I've even open some games to stress the system a little bit but everything seems just fine. I have no idea what actually happened but I guess it is "ok" now (even though I am still thinking in the burnt smell).

Thanks a lot for your help guys, I'd pick you all as the correct answer if I had the chance 😀



Sorry, I'll avoid it in the future :)
 
It's also possible that an air bubble got temporarily stuck in the pump when it was being moved around, and eventually got pushed back out. That could potentially damage the pump if left unchecked, though I'm not sure if it could result in a burning smell right away.
 
Solution