Hello guys, I'm having real trouble with my PC all of a sudden, and i don't quite know what it is and im on the verge of tears! It seems to occur mainly when gaming, as i haven't had the crash whilst using desktop or the internet. I haven't tried running any movies or anything yet either. The game BSOD's, particularly in SC2, but its so random im having real trouble re-creating it to write down the BSOD error. It can range from hours to 30 minutes before it happens and i haven't been able to re-create it since the last BSOD, last night. In Battlefield 3, the game simply hard-locks after around 15 minutes. I am also experiencing the green flashing across screen, which wasn't present a week ago at all and i could play BF3 for hours. However, this appears to be a common issue with BF3 as well, which makes it hard to know whether this is indicative of a problem on my end, or with BF3. I recently formatted 2 weeks ago, as well as over clocked, and have been running my PC perfectly fine for a full week until around a week or so ago i began receiving these crashes. In either case, here's what i have done so far to try and remedy the problem. I have; Restored BIOS to default values - no success. Monitored heat temps - GPU @ 70-75*C, CPU @ 50-60*C on load. Ran Prime95 during overclocking period which passed. Cleaned out PC with CCleaner Updated ATi Drivers from 11.9 (previously working fine) to 11.10 (latest 31st Oct) using driver sweeper. Disabled HyperThreading - no success. Does anyone have any ideas? I'm stuck. My last resort is to format yet again, which means hours of copying across 250gb of backups again with no guarantee of fixing it. Would appreciate all and any help. PS: I have attached my .dmp files. The error i received in EVent Log seemed inconclusive to me, as after typing it into Google it came with lots of different results and i could not pin-point one to mine. This is the error in Event Log i get when my PC has started up, maybe someone can make much of it. As much as i gathered was that its a general Win7 error that means nothing. Perhaps my DUMP files would be more useful to someone who can actually decode them.