Hello, i've been having a re-occuring problem with my pc. This error has only occured during gaming. Visual indication would be the screen freezing on a specific frame. Sound would indiciate a reptition/loop of the last half second of noise produced by the game. And for my pc case, i have a led that connects to the HDD that blinks to show HDD activity. When the freezing first starts, it would blink in a constant cycle, then a few moments later, the light would turn off, My screen would still be frozen, and the sound would not loop anymore, but only play the last sound genereated by the game. Things I've done to try to troubleshoot; 1. Chckdsk (Using regular chkdsk in run will check to about 2nd or 3rd step, then it says errors found cannot run in read only mode. 2. chkdsk /f 3. Ran SEAGATE diag tools. Tests run: SMART check, Short drive self test, short generic test. All tests came back as PASSED 4. Right click My Pc -> Manage -> Disk Management -> Right-Click C drive -> Properties -> Error Checking -> Check Now. The test would not start till i rebooted (and i did so) I waited for the 5 step test to finish, and my regular boot up screen proceeded and i logged in. *I've updated graphic card drivers, HDD firmware PC SPECS: Quad core Q9450 Seagate 500gb bfg gts250 kingston 4gb ram coolmaster 600W Asus P5Q-E *I've tried to check for errors in event viewer, but nothing poitns to a freeze or shutdown Stats while play Red Faction Guerilla in windowed-widescreen according to speedfan: GPU: 59 C System: 29 C CPU: 47C AUX: 30C Temp: 59C HDD: 27C Core 0: 54C Core 1: 51C Core 2: 50 C Core 3: 58 C Core: 59 C At idle: GPU: 39 C System: 29 C CPU: 35C AUX: 30C Temp: 39C HDD: 27C Core 0: 43C Core 1: 42C Core 2: 39 C Core 3: 44 C Core: 38C Any solutions? Thanks