that error usually stems from a driver compatibility issue, but could often be attributed to bad RAM or other hardware. if you can get spares of anything, you should swap them out until you can isolate the problem.
the best troubleshooting tip is to work with a motherboard with the sole parts needed for operation (PSU, CPU+heatsink, mobo, one stick of RAM, a video card, and a harddrive with an OS). if that works, then you know that's not the problem, so stick in another piece of hardware and see if that causes the bluescreen. if one of the above essentials causes the freezes/bluescreen, try with spares that you believe will work and you may be able to isolate the problem that way.