CPU: Intel Core 2 Quad Q6600 @ 2400 MHz Motherboard: Asus StrikerExtreme Chipset : nVidia nForce 680i SLI SPP Ram Speed, size and #sticks 1024 MB (2 x 1024 DDR2-SDRAM ) GPU: Nvidia Corp GeForce 8600 GT PSU (do not leave this out): Delta Power, AC 115/230V, 50/60Hz OS: Window XP Home edition service pack 3 WHAT HAPPENED I am getting BSOD Machine check exception error 0x0000009C ( 0x00000000, 0xF771B050, 0xB2000040, 0x00000800) when I play the game, World of Warcraft. Even though my machine is set to auto Reboot after error occur, it wont reboot at all, it will just stuck at BSOD screen with error code 09C. If I reboot right away after BSOD occur, it wont start up my window at all. It will stuck with message saying "SATA Link Bios Version 7.3.13"....etc. I have to totally shut down the power and wait 1-2 mins then window will start up normally. I checked the event log right after I start up the window and found out that minidmp file was created at 10:02 PM and error event log is at 10:03 PM. I attached latest minidmp file and screenshot of error event info. What I have done so far Did clean new OS installation. I have run CHKDSK for both my hard drives and machine didn't show any errors or bad sectors. So I assume my hard drive is safe. I also ran Memtest86 up to 7 passes and no error shown. I'll try to run more over night again. But I doubt it's my RAM. I have 2 stick of 1 GB RAM I checked with 1 stick at a time and BSOD is still occuring. I mornitor my PC's temperature and fan speed using PC wizard, I also tried SpeedFan as Techspot suggested here. I have the screenshots and reports of the Temp,voltage, Fanspeed and overclocking info attached in the zip file. CPU temperature usually went up to around 45-51 degree celcius while I'm playing WoW and GPU temperature is around 65-66 degree celcius. That's about what I have done so far to narrow down the problem. Please, any help and suggestion will be really appreciated.