BSOD or freezes within a minute when playing game

[Sharam]

There is a section in the BIOS that has to do with Hyper-Threading, Make sure it is disabled. We know Core 2 Duo and Quad are not Hyper-Threading CPUs.

How about the Memory to 533MHz, did you do that before we do Memtest?

PCI-E requires a voltage boost at the same time to one of the bridges, I have to look at the BIOS section in your manual.