I've finally decided it's time to put this issue to rest and I don't mind changing out parts as necessary. Back in January of 2010, I bought parts to put my computer together which I will list below. Ever since then I randomly had reboots occur, but they wouldn't be often enough for me to address the issue, I always just figured it was not getting enough air circulation in the chassis. More recently it's been rebooting more regularly (a few times in one evening and sometimes wouldn't finish booting up). I've never seen the BSOD, only would I see it completely power down for about 5 seconds then autmatically spin up and reboot itself without an issue.
I've also recently been interested in doing some overclocking and would like to get rid of this issue if possible. I don't believe it is my CPU temps as I've done some preliminary checks of the temps recently and they don't seem to be going much higher that 40 degrees Celsius and idles around 30 degrees Celsius. Below is a list of all the equipment I've used to build my system. I started with a different video card than what I listed below. Thus, I don't believe that's the issue since I've had it this issue the whole time. Also, I haven't found any viruses that has caused this. Again, I've had this over the past couple of years happen while my computer would be running, but some evenings it would run better than others and I was starting to believe it was temperature related, but I'm doubting that theory. Any suggestions of what it may be would be helpful. I'm pretty savy with this stuff, but haven't tried troubleshooting it too extensively yet.
Thank you very much ahead of time!
List of Equipment:
*ASRock P55 Extreme LGA 1156 Intel P55 ATX Intel Motherboard
*Intel Core i7-860 Lynnfield 2.8GHz LGA 1156 95W Quad-Core Processor
*G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Dual Channel Kit Desktop Memory Model F3-12800CL9D-4GBNQ
*GIGABYTE GV-N460OC-1GI GeForce GTX 460 (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
*CORSAIR Enthusiast Series CMPSU-650TX 650W ATX12V / EPS12V SLI Ready
*Western Digital Caviar Black WD6401AALS 640GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive