help computer prob

[pghdave420]

i have 680i mobo,4gig patriot ram,8800asus gts(92)card,seagate barracuda 250g 7200rpm 3g cache,intel core 2 duo e6600 2.4g,rosewill 550w,well my prob is wen i try to install games they give me prob installing but after many repeats of installs finnaly got them to work like world of warcraft and call duty 4.got both them installed and they look awsome but like in wow it sometimes freezes or boots me out and call duty 4 it does same but it has error like wen i go to load save game it will freeze in certain parts so then i have to restart whole game all over and so far i have had 2 blue screens one said check c drive for room i have 250g and only 2 games on machine so room aint the prob and one said something about ram.never had any probs when not playing games. computer fine wen just doing everything but games.any suggestions what could be wrong.ty

 

[pghdave420]

o and i did whole comp scan no viruses and no registry errors.had no probs installing os either just wow kept making me restart the installing

 

[pghdave420]

ive had this comp for like 6-7 months,ive been playing wow this whole time and some days it wont even crash or nuthin.and some days it will crash multi times.i dont know computers good enough to fig out wish i did thats y im here.hope i get some help lol