I keep getting random freezes during gameplay (TF2, Portal 2, Total War: Shogun 2 [does not seem to be any specific game, just games in general]), and when the screen goes black the audio starts looping.
-I have performed a clean boot of Windows 7 (http://support.microsoft.com/kb/929135
-I have checked the minimum specs for each game and I have confirmed that they are able to run on my computer.
-I have run a Preboot System Assessment without any errors.
-I have tried uninstalling my graphics driver
in safe mode and reinstalling it normally through Windows.
-I have checked the temperatures and power supply of both my motherboard and video card.
-I have monitored my CPU usage during gameplay.
-I have run Memtest86 and have not found any errors.
-I've disconnected all devices except for my monitor, keyboard and mouse.
-I have tried disabling Aero effects.
-I have checked with my computer manufacturer and have validated that I am running the newest driver for my audio card, video card, BIOS etc.
-I have tried lowering all game settings to the minimum setting
but still i get the same problem - the screen freezes and blacks out, and the audio starts looping. No BSoD... yet.