Hello,

My CPU has lately gone absolutely crazy, its temperature reaching up to 93° Celsius while idle. I do not know its exact model but I know that it is an AMD quad core for an fm2+ socket with 3.4 GHz per core.
My question(s): Do you think my motherboard, a Gigabyte GA-F2A88XM-DS2, has been damaged by my overheating CPU? Is there a way to check? Or is my motherboard somehow at fault for the CPU overheating? Basically: Do I need to replace my motherboard?

Any help would be much appreciated.

Thanks!Heatsink or Thermal compound issue is most likely cause of issue. Motherboard is only bad if system will not behave after temps have been cured or no longer boots and is the direct cause of a failed boot if socket is melted and warped and other issues such as cooked VRMs etc. System should have SHUT itself down due to thermal protection temp reached, but I suppose you could damage system if this thermal protection is not set or available.

Does this system boot anymore or is it acting like its cooked?The system still boots and the socket looks undamaged. The system did shut down repeatedly before I realised that the CPU was overheating. The CPU-fan I have looks pretty dusty and cheap-looking. But surely, EVEN if I have a bad fan, the CPU should not be reaching 93° C while idle??Your still runnin it at those temps ? ?

And where are the Temps bein reported ? ?No, of course I'm not.

And it's in BIOS that I saw the 93° C, which, I take it, is far from normal.Sometimes THERMOCOUPLE can report wrong, but I'd remove the heatsink and clean up the CPU and heatsink of the old paste and then apply NEW thermal compaound and try again with temp measurement. If its 93C immediately, then its probably a bad thermocouple on the CPU. It should be cold and warm up as its on.Ok, thanks for your help!
I'm going to order a new heatsink as I find the current one to be not that great.
If the problem persist, I'll report back.

Thanks again. 

The OP may need some help with this CH topic:
Is there a way to tell how hot my CPU is running?
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The computer must have thermal sensors or an Intel Core Duo processor or later with DTS for you to be able to determine how hot your computer is running. Without the proper sensors, programs designed to MONITOR the temperature of your processor, video card, hard drive, etc. will not work