AngelfireUk83 said:
As of todays motherboards they normally come with a CPU overheat protection system and if you said you smelt burning plastic then your board's on it's way out. How long have you had it if your under a year you should be able to RMA it from your dealer. Infact go straight to the brand maker and go through there support they will then let you know if your can have a replacement or get it sent for a fix.
Would save you money unless you've seen another board you like but it does sound the board is on it's last legs.
AMD's overheat protection is very poor. Intels are the best.
I saw a video of a AMD with no heatsink beign turned on... and it fried...
they then took a Pentium and did the same thing, and the pentium protected itself...
My solution is the following. First, I assume by "Heatsink" you mean CPU. Was the fan running, or is it failing?
Check the PSU... is it vibrating or making the slightest noise. If you cant hear it, try temporarily stop the fan on it from spinning, with a paper clip. If you hear or feel any vibration, then the PSU is the source of the initial issues. What type of Powersupply are you using?
Try the
http://www.ocforums.com/showthread.php?t=403837
Second step is to remove the heatsink, and check for any burning on the CPU. Also make sure there is a light coat of thermal paste. If thermal paste is everywhere or non-existant, then you had an idiot build the machine.
If the CPU is not burnt, or show any Obvious sign of damage, remove it, and check the Motherboard. Check both sides. If any burn marks are on the board itself, then their is a problem. Go through and check each little compacitor, transistor, etc for any obvious sign of damage.
Does the machine only lock up in this one application? How about other games? Did you Download the ATI/Nvidia drivers directly from the manufacturers? Check the video card in the same way as you did for the Motherboard. When you put the machine back together, use Artic Silver Revision 5. Buy it before you start doing anything. THEN READ THE INSTRUCTIONS. THEY ARE VERY IMPORTANT..
Then report back with the results.
thanks
Mike
PS are you OCing the processor/videocard?