Wierd Computer Crash -- Locks, Random Colors on Screen, Monitor loses video feed
1gig corsair ram
BFG 6800gt o/c
I have no problems with the any of the games I play except FEAR (Actually it happened once in Swat 4). HL2, Oblivion, etc. all run fine. However, I would assume FEAR is the most demanding out of the three... i think. Anyways, after playing for no more then 10 minutes I get this wierd crash, best described as a sudden system shutdown. I see scrambled colors on the screen for about 3 seconds then the monitor loses its video feed and you can see the monitor light flashing. The computer at this point is still running, I am unable to use the restart button, and I don't hear any processing going on.
To restart my computer, I have to manually turn off the power supply then turn it back on, then hit the power button on the computer.
I have tried two different PSUs each 500watts and different versions from antec. I have a big fan on the CPU and Artec thermal paste applied. However, I am wondering if the system is overheating... is there any way to do a diagnostic on my machine with some software? anything that monitors what is happening?
I would really appreciate it if anyone has any suggestions or comments.