So this has never really been an issue before until just recently. My HD got so corrupted that I had to reformat the drive and reinstall all the recovery components. After doing all this I was reinstalling games back onto my system and have been having some intermittent issues with shutting down which just recently got worse. When playing games like Sims 3 or Dungeons, games that are graphically intense and larger, the computer now will shut off within 6-10 minutes. No graphic anomalies, and I am able to turn it right back on without the computer baring me due to an overheated system. The system doesnt shut down when running movies, or playing games like fallout 1 or other 16 bit games. I ran hardware monitor and speed fan when I was running dungeons and got the following data: HW monitor reports: Min/Max C Therm: 57 / 72 Intel core i7 720QM Core0 58 / 73 Core1 55 / 69 Core2 55 / 70 Core3 58/74 ST950042 0AS Assembly 44 / 47 Air Flow 44 / 47 ATI Mobility Radeon HD 5870 TMPIN0 76 / 109 Speed Fan reports: Speed fan only sees one CPU Fan running at a range of 2800-3500 RPM, However my laptop has two fans within it, should it be reporting 2 CPU Fans? When running dungeons, the fan jumps to 4700RPM The GPU temp is normally 76C but when running dungeons it jumps to 109C Im running an Asus G73Jh gaming laptop. The BIOS is version 8.00.10, Intel core i7 CPU Q 720 @ 1.60GHz Memory: 6144 mb ram HD 500gb 281gb of 446gb free OS: Windows 7 Home premium 64bit 6.1 build 7601 My question is whether or not one of my fans isnt working anymore (Which happened a year ago and I had to replace it), or is something else going on that isnt kicking my fans on to cool the system down for gaming? I dont tend to hear the fans whirring loudly anymore like they sort of did before when things got a little too hot.