My computer automatically restarts when I play games....

[hardian88]

First of all, I'm sorry if there are some wrong english because my english are not very good.

I just bought new PC with this specification:
- Intel quad-core QX6850 3.00Gb 64-bit
- 4GB (2x2GB) PC6400 DDR2/800 Dual Channel Memory
- 500GB (250GBx2) SATA-II 3.0Gb/s 8MB Cache 7200RPM HDD
- Dual GeForce 8800Ultra 768Mb EVGA
- 1200W power supply
- Vigor Gaming Monsoon II Lite CLT-M2LI LGA775 CPU Air Conditioner Cooling System
- Asus Striker Extreme nForce 680i SLI Chipset LGA775 FSB1333 DDR2 Mainboard
- Windows Vista Ultimate 64-bit

My problem is every time I play some games (Lost Planet, Bioshock, GhostRecon) about 15 minutes, my PC automatically restarts.

I'm already uncheck "automatically restart" under system failure, but the blue screen doesn't appear.

I'm also run Scandisk/memory scan/virus and spyware scan but nothing wrong.

I'm also already update all the software/drivers and I put my portable air-conditioning infront of my opening PC's case because some of my friends says maybe my PC overheating.
But my PC still automatically restart every time I start play games.

Can anyone tell me what's wrong with my PC? I'm very appreciate for your help.

[zipulrich]

Likely a heat problem BUT....since you just bought it, take it back & let them fix it. That's what warranty's are for.