I read the rules and I know that I have to have an intelligent topic but all my thought has gone into this...
First off: Hello to all of you!! As you can see I'm new to the forum and want to get to know all of you since I've been lurking in the guest area for a while... Hope we all can help eachother out and show the world how universal peace is acheived

Ive had this issue with my computer just recently, slapped 'er trogether with these specs:
AMD athlon 64 939 socket 3200+
Asus A8v deluxe motherboard
1.5 gig of DDR dual channel ram (2x 256/2x 512)
80 gig HDD by western digital
Nvidia GE Force 6600 gt Video card w/128MB Ram
Factory Sound card on motherboard (does just fine)
Windows XP professional SP2

The Problem:
Only with more recent games do I have an issue, On far cry with the video settings set @ low on everything does it work for hours on end without any problems, if I do the auto-detect (which it has everything on high) or if I run F.E.A.R. sometimes GUN, it locks up without warning.. Fear and farcry on high settings run EXTREMELY smooth so I know that the hardware I have is capable of handling it but it just locks without a BSOD and I have to do a hard reset. Ive upgraded all the drivers for sound/video card and I ran MEMTEST86+ and my ram is fine, run asus probe to see if it was overheating and it doesn't even seem like it from the temps and voltage I see, doesn't even get close to the threshold, dx diag runs all tests and they come out just fine... Strange part is is that if I run a wal-mart fan on my motherboard then it gives me a little more time making me think temp :-? (maybe RAM???) but asus probe doesn't... I've tried everything I can think of.. Could it be my optical drive?? it is over 5 years old but still runs everything else like a champ but maybe can't handle games that are more recent?? Like I said I have racked my brain trying to figure this out, chances are it's looking at me right in the face but I wanna get some OPINIONS if all of you would be so kind.........

Thank you for your time on reading this and I hope you may shed light upon this darkness
With Regards,
Sir BundySince you have three high-end games in graphics on the computer at once, this may slow it down when playing because of the fact that they are newer, and your computer may not be able to take it all at once. Try taking a game off, and see how it works out.Yeah I suppose if I were to run them all at once but otherwise I'm not accessing the software but one at a time... Otherwise they're just on my HD waiting to be opened.... I know the system I have can handle it since when it does play its really smooth, no HANG ups until it just locks up... I was reading something about my video card having issues heating up so I may buy a fan to replace stock and see how that goes, I have riva tuner and my temps as far as I was able to get playing fear and exiting before it had the chance to lock my temps were in the high 80's when playing for just a couple minutes... thanks for the thought I may give it a try just to see..It doesn't work like that Perfect Agent.

It sounds like you are on the right track with temps Bundy.
Can you test with 2 desk FANS?
How high does your ambient temp get?
FYI, there is a nocd patch for Farcry.