Tech specs from cyberpowerpc.com

CAS: TURBO X-DREAMER CASE 350 WATT W/ WINDOW & LCD Temperature Display (BLUE COLOR)
CS_FAN: Default case fans
CPU: (Sckt775)Intel® Core™ 2 Duo E6850 CPU @ 3.00GHz 1333FSB 4MB L2 Cache 64-bit
CD: (Special Price) 18X DVD±R/±RW + CD-R/RW DRIVE DUAL LAYER (BLUE COLOR)
FLASHMEDIA: INTERNAL 12in1 Flash Media Reader/Writer (BLUE COLOR)
FAN: INTEL LGA775 CERTIFIED CPU FAN & HEATSINK
HDD: Extreme Performance (RAID-0) with 2 Identical Hard Drives (160GB (80GBx2) SATA-II 3.0Gb/s 8MB Cache 7200RPM HDD)
MOTHERBOARD: (Quad-Core FSB1333) Asus P5N-E nForce 650i SLI Chipset LGA775 FSB1333 DDR2 Mainboard
MEMORY: (Req.DDR2 MainBoard)2GB (2x1GB) PC6400 DDR2/800 Dual Channel Memory (Corsair Value Select or Major Brand)
NETWORK: ONBOARD 10/100 NETWORK CARD
OS: NONE - FORMAT HARD DRIVE ONLY
POWERSUPPLY: 500 WATT POWER SUPPLY
SOUND: 3D WAVE ON-BOARD 5.1 SOUND CARD
SPEAKERS: 600WATT PMPO SUBWOOFER STEREO SPEAKERS
USB: Built-in USB 2.0 Ports
VIDEO: NVIDIA GeForce 8500 GT 512MB 16X PCI Express (Major Brand Powered by NVIDIA)
VIDEO2: NVIDIA GeForce 8500 GT 512MB 16X PCI Express (Major Brand Powered by NVIDIA)
WNC: PCI Wireless 802.11g 54Mbps Network Interface Card

Here is powersupply specs

NZXT model PP500
DC output +3.3v +5v +12v1 +12v2 -12V +5vsv
Max Amp 34a 40a 16a 17a .8a 2.5a
Max ouput 500 watt

Ok so when I'm playing *any* 3d game, even a low end game like Ragnarok online, it will randomly freeze my computer. It won't freeze when not playing a game, however every now and again I'll get the BSOD and it'll auto-restart.

I have updated drivers and used nVidia's tools to optimize "system stability" which altered some of the speeds/voltages on the cards in hopes that this would fix the problem, but to no avail. I have also tried only using one video card (for both cards) and have the same problem.

I can usually play anywhere from 30 mins to 2 hours before a freeze occurs.

I did memtest86 for a while, and my ram seems to be fine -- however I ran a few ATI diagnostic tests on the card and found that it was running pretty hot.

The video card was running at about 105 C during the stress test. I couldn't find a max temp for the 8500gt on nVidia's website, but the normal max temperature value for nVidia cards seems to be about 105. I seriously doubt, though, that this is the normal operation temperature.

Anyway, I tried lowering some settings, such as hardware acceleration, but still randomly having the freezing problem. It's completely intermittent as I said, sometimes it'll freeze within the first 5 minutes of playing a game, and other times it'll run fine for 3 hours without any problems.

Oh, and as far as performance goes, I'm pretty happy with the quality and framerate of the games I play with this computer, I just don't want it to crash. I know that's a lot to ask with the 8500gt. If someone were to just suggest getting a new card (which makes sense because the 8500gt isn't a very good card at all), just know that I'm not looking for anything way better. Honestly a lower model would be fine as well, I just care about stability at this point. SLI isn't even really a big issue, if I want to upgrade later, I can.

I also attached my DxDiag if that helps.