thanks or the reply, ya know ive been thinking it may be the ram, or the psu, but never the sound card. care to explain to me how the sound card would cause the crash? ive never had any sound problems while listening to music, my comp never crashes or freezes outside of games and even before crashes the sound seems fine
when i think it may be either of the gpu's, it just dosn't make sence that i can play other games without problems. i understand the load crysis puts on them is high. so if it was just crysis itd make sence, but farcry 2 works and cod5 does not.. farcry is a much more demanding game.
As far as why the soundcard could be an issue, long experience is all I can say. Different games will place different demands on a card, and when one game crashes while another does not, it's always a likely culprit.
I suspect it less in your case because I have the same sound card and it runs Crysis fine, but it could be.
IF it is your MB, sound, or GPU, it's because the specific software is making a specific request of your hardware that it cannot perform well. Just because a game is more demanding does not mean it's demanding in the same way.
As an example, perhaps COD5 is writing to the same small portion of VRAM over and over, causing it to heat up too much and produce an error it would not otherwise produce.
Perhaps a mode switch in a game causes a voltage demand spike that in turn makes your 12V line just unstable enough to bring your MB to a halt.
In other words, strip your computer to the bare minimum that will still run your games (performance in the game notwithstanding, we're looking for stability here). No sound card, single video card (even minimal ram, if you think it's a culprit). Run the suspect games with this minimal configuration and note the stability (or lack thereof). If it is stable, add a single component and test again. Do so until it becomes unstable again, and you have narrowed the scope of your trouble shooting. Perhaps even trying different combinations until you find out exactly which are stable and which are not.
In the end it could be just a matter of SLI drivers, your exact particular combination of hardware, and specific quirks of the games you're having trouble with. Some people have to disable their multicard setups (SLI/CF) for specific games until their specific video drivers are updated for said game.
It's all going to be trial and error at this point.