I recently bought a computer that will randomly restart (usually happens about once every 1-2 hours). These are the specs:

-Case: CoolerMaster Mystique 632 Tower (Black)
-Motherboard: Asus P5N32-SLI SE Deluxe
-Processor: Intel Core 2 Duo E6600
-Memory: Corsair 2GB(2x1GB) PC6400 DDR2/800
-Hard Drive 1: 400GB (7200RPM, 16MB Cache)
-Hard Drive 2: 400GB (7200RPM, 16MB Cache) <- in RAID 0
-CD Drives: One CD/DVD burner, one dvd-rom drive
-Soundcard: Creative Labs SB Audigy 4 SE
-Video: NVidia GeForce 7900GT 256MB
-12 in 1 Flash Media Reader/Writer
-PSU: Apevia 600W ATX Power Supply

Normally the restarting will occur when Im downloading something, but it seems to me that isnt enough to cause a computer to restart. I have no clue why this is happening. Last night I downloaded all the (what I suspected were) current drivers for my video card and monitor.

This is where I got my latest video card driver:

http://www.nvidia.com/object/nzone_d...bit_91.33.html

Is that the most updated one?

Also, Im not sure if I have the most updated motherboard drivers and Im not sure how to check. But, my computer is literally 2 days old so it seems like it wouldnt be an out of date driver issue, but I could be wrong.

I also thought it might be my PSU being too small, but everyone I know tells me 600W is more the enough, even for the system Im running.

Any help whatsoever as to why my computer will randomly restart would be greatly apprieciated!