Intel i5 2500k 3.30 GHz
EVGA GeForce GTX 560 1GB GDDR5 PCIe Dual DVI/HDMI
ASUS P8H67-M LE REV 3 Intel H67 LGA1155 MB
2 x 4GB Corsair Vengeance DDR3 1600MHz
Seagate 1TB LP Serial ATA HD 5900/32MB/SATA-3G
Samsung Internal SATA 22X DVDRW
And here's the power supply I'm using:
Eagle Tech Voltas series 550W Power Supply
** EDIT ** I should probably mention I'm actually asking this because I'm getting a lot of crashes/freezes while playing diablo 3. The weird thing is my computer will beep right before freezing, which makes me think it might be a hardware issue. I've been monitoring CPU and GPU temps and they're not overheating, so I figured it might be a power supply issue.
The game will usually just freeze for about 10-30 seconds, but will occasionally blue screen - restart. I'm not currently at home but I recall a blue screen error saying something like 'kernel data inpage error'. I know a LOT of people are having performance issues with Diablo III so maybe it's not my computer.
It does indeed smell like a PSU issue, and unfortunately tconness was sort of off to a bad start picking that PSU in the first place, but I certainly would rather not tell someone to run out and buy new parts without confirming they are the causal factor. I would run memtest too on top of prime 95 and furmark, and if possible try swapping in a known good power supply first.
If Diablo is the only game the problem happens in, then try a clean install of the game.