>DRIVER_IRQL_NOT_LESS_OR_EQUAL
At least we're getting somewhere. This kind of error usually occurs when your hardware is unstable. For example, CPU overheating (or too much overclocked) or your ram is giving you errors.
First (and easiest) thing to do is to check your ram with memtest:
http://www.memtest86.com/
after that go into your bios and check the cpu temp. if it's not there you can touch the heatsink after it's been running for a while. if you feel like you'll get a burn if you hold your finger there for a few seconds it's probably overheating.