Hello. I recently built a system for gaming. And I've had nothing but headaches. My problem is that my computer keeps having these random system freezes. It usually only happens in games. It freezes and just stays frozen. Can't ctrl+alt delete out or nothing. It use to do it the odd time. But recently its been doing it ALL the time, even when im just using the desktop. Also sometimes I couldn't even log into windows, it would freeze on the screen with that charging bar. It would eventually reboot saying hard disk failure. I took a look into the bios and the SATA master wasn't there. I shut the system down re-booted, it was suddenly there..... With out SP2 I can log in fine now, but my games keep freezing. Very in frequently I might add. Sometimes my systems on for 5 minutes and it freezes. Sometimes I can play for hours. I also formatted and reinstalled windows and all my drivers 3-4 times. I belive all my chipset drivers and what not are all up to date. Any help would be great. Thanks, Oh yea here are my specs. Amd 64 3500+ 2048mb kingston KVR400 pc3200 ram A8n SLI premium board. BFG 7800GT SATA 200gb maxtor 7200rpm On board sound Antec P-180 case with a 500w supply.