The details: I am running a 64 bit windows, OEM, just bought the system about a week ago, the OS is the same age, and I just reinstalled it 3 days ago for the second time. What happens is at least once to twice per day it gives me a BSOD that crashes the system so hard it reboots. Sometimes reboots twice. I have run a 5 hour Memtest and found no errors with the RAM, and I'm hoping it's none of the other components. Sometimes it will run fine for hours then poof, for no reason, crash.