Hi there. I've been having somewhat frequent BSODs with various error messages. This is occuring *after*, not during, gaming sessions. The info attached is from playing Civ5 for a few hours, quitting, leaving the room, and seeing the BSOD. The message was "APC_INDEX_MISMATCH." Just now I had another from playing Diablo 3, minimizing, and a couple minutes later crashing (no .dmp file, "dumping physical memory to disk" stuck at 95 for 30+ minutes). The error was "DRIVER_IRQL_NOT_LESS_THAN_OR_EQUAL." Another problem occured after this last one. After booting to desktop, the computer immediately crashed to a blue screen. I didn't get a chance to see this message; the computer shut down. It then attempted to power on a few seconds later, and then shut down. It continued to power cycle like this until I flipped the power in the back. Nothing shows on the monitor. It's done this before too, though it occured again after playing a game last time. I believe it showed "IRQL_NOT_LESS_THAN_OR_EQUAL." Now on to some other notes: I never crash *during* a game, just after. The GPU (780Ti) is a few months new. I didn't really see BSODs before it, but it's taken a few months to get this frequent. All other hardware is only just over a year old. The PSU is a Corsair 850W. Not a cheap one and plenty of power for the new card. I uninstalled/reinstalled graphics drivers. Maybe I didn't properly fully uninstall them? (I didn't use a third party program to uninstall) Temps are fine. CPU and GPU are not overheating to my knowledge. I ran windows mem diagnostic and Memtest86 (8 passes). Everything is clean. I've made sure everything is seated properly on the MOBO. Dust has been cleaned regularly. I'm not sure why .dmps aren't being created properly. I did have the page file set to "system controlled" on both drives, auto restart off, and set to make a full memory dump. It either freezes on the BSOD or powers off. Just now, as per the guide, I changed the main drive to 1.5x RAM. Hopefully that will help I think that's it. Attached is my system info and the only minidump I have. If you need any other info just ask. Thanks!