Watch it to see what happens -> http://www.tomshardware.com/2001/09/17/hot_spot/page6.html
I was recently given a nonworking PC to toy around with - it's a 2 or 3 year old IMB Emachines (from walmart).
During a move to a new house it had quit working mysteriously. Those things are so cheap it's just as cheap to buy a new one as it is to fix the old one, so that's what they did.
The issue with it was - it just refused to post or boot up. I systematically checked all the wires and connections to make sure nothing was just shaken loose then I removed each piece of hardware one by one - checking each time. The cheap thing didn't even have a case speaker so I had no way of knowing if there was some sort of error beep.
The CD-RW/DVDROM was somehow stuck shut as well and apparently had been that way for some time before the pc quit working. The HDD was also making a sad wheezing sound as well - although you couldn't hear this unless the case was open.
So I decided at that point to just gut the whole thing for parts. The CPU is an AMD Athlon 2600. However, at some point I had taken off the heat sink (to check to see what the cpu was) and then inadvertantly powered it up without replacing the heatsink. After about 4 or 5 seconds the cpu made a sizzling sound (similiar to bacon frying) and then I immediately powered it down.
So my question is - what are the chances that the CPU is fried now? I wouldn't mind having a spare cpu laying around, provided it isn't fried.
Secondary to that - any guesses as to what was wrong with the system? My best guess is that the motherboard crapped out during move.