This is a Farly recent problem. I will start with what i have. Its a home built PC. Asus P5Q-PRO Intel Q6600 ATI XFX 4850 Thermaltake 850 PSU Corsair dominator pc8500 4gigs Windows 7 ultimate. Temps are VERY low. I liquid cooled the CPU with a system i used for my old Pentium D. I have reinstalled Winddows several times. EVERY component in this build is Less than year old. My computer randomly crashes to BSOD. Showing a different reason everytime. MEM_MANGAMENT, IRQ_NOT_LESS_OR_EQUAL.. The list goes on. All of the common errors. I have tried different ram. I had two of the Same Graphics cards, and tried either or. After reinstalling windows it seems to run fine for almost a whole day, then it crashes randomly. When i restart it it usually crashes right after the desktop loads. After a few restarts I get an hour, Or a few hours before it crashes again. I have no idea what is triggering these crashes. Ive spent that last few days doing nothing but trouble shooting. If any one can help I would greatly appreciate it.