A while back I started getting PAGE FAULT IN A NON-PAGED AREA BSODs. I moved my page file to a second on-board HD and the issue stopped. In the last week or so I've started getting the occasional IRQL NOT LESS OR EQUAL BSODs, and I got another PAGE FAULT BSOD, too. Maybe it's just coincidence, but these errors have only occurred while playing a video game (the Long War b15f3 mod of XCOM Enemy Within on Steam). I've also had VERY frequent crashes of the game (not windows) while playing the tactical missions (maybe it matters that this is the most graphics intensive part of the game) -- and from what I can see on the game's forums, game crashes like those I'm experiencing at NOT normal. So I'm assuming it's not the game's fault directly, but rather indirectly through what it's asking the system to do. My computer is self-built, most parts are 4-5 years old. Mobo: Biostar TA790GX A3+ Power: this CPU: AMD Phenom II X4 955 RAM: 4 GB RAM, Corsair brand and I think DDR3 Graphics card: Radeon HD 5800 Sound card: having a brain fart and can't figure out what type it is and don't want to open the case with my kids around if I can avoid it... Recent .dmp files are attached. I would be grateful for any advice! PS Sorry if the thread prefix is inaccurate, wasn't sure what to pick!