Hey all, I've lurked for quite a while and decided to try my problem here. Basically for the past month or so I have had random lockups and reboots. I usually don't get a BSOD, usually just locks up suddenly during a game and then my speakers cry at me. I'll list the steps I have taken so far below. -reformatted my hard drive and reinstalled windows fresh -updated all drivers for all components with new drivers -ran scandisk and disk defrag -replaced my power supply with a better brand name one - reseated all devices and cleaned any dust out of the machine -ensured proper cooling -replaced older thermal paste from cpu -ran memtest (came back completely clean) -have set it to run no background applications upon booting up -updated to SP3 after all that, just in case ================================================================= PC Specs ================================================================= CPU: AMD athlon 64 4000+ Mobo: MSI K8N Neo4 Platinum GPU: ATI Radeon X800GT RAM: 4x 512mb sticks of PC3200 DDR-SDRAM (OCZ plat. revision 2) HDD: a seagate something or other Attaching the dmp files i could find. Any help would be greatly appreciated.