I've just gotten three BSODs in a row. First came during general use, the other two, right after I logged in in normal mode. I'm in Safe Mode now. They popped up in this order: SYSTEM_SERVICE_EXCEPTION IRQL_NOT_LESS_OR_EQUAL MEMORY_MANAGEMENT I ran memtest and the sticks seem good, so based on past experiences, here are the possibilities. - Bad driver (unlikely, I haven't installed anything lately). - Corruption of windows files (possible, since a couple of Win system files were named in the BSODs). - Bad motherboard (possible, has happened before).