I know its a very silly question but it had a very old motherboard which have square shaped fan whose wire has been cut by rats and i have to check if the motherboard is working or not? I have to just check its booting or not.
That's with no HS at all, i'm reading this as HS but no working fan, the lump of metal will keep a lid on it for a very little while.Keyword here is old: Tom's actually tested this in an interesting video back in the day. PIII locks up but is undamaged, PIV and later can slow to as low as 200MHz and if that is still insufficient will lock up with no damage, Athlon XP burns completely up.
Oh, and hantavirus is worse than Wells.