So my computer has been randomly shutting down and turning back on (it would completely shut down, no lights or anything, and then boot back up). I have all settings at stock.
At first I thought it was my PSU was getting old and showing its age so I swapped it out with another...same thing was happening. I took both PSU's to my local computer parts store (as they're under the extended warranty) to get tested and they both passed all of their tests and stress/load tests.
I then changed the motherboard out with another one. Same thing. Tried the motherboard with a 3rd PSU, same thing.
Got a brand new motherboard with the first PSU, same thing. Tried the new motherboard with the 2nd PSU, same thing. Tried the new motherboard with the 3rd PSU, same thing. Random shut downs. Sometimes they would happen under full load, when I was doing [link=mailto:F@H,]F@H, [/link]other times it would be when I was watching some streaming TV on my computer with next to no load. Or if Im playing a light graphically loaded game (like rift or MechWarrior Online), and it would still randomly shut down.
First motherboard I tried was an Asus Rampage III Black Edition with a Corsair AX1200 and a Evga GTX 670. I have a 2nd AX1200 which I swapped it out with and it made no difference. Also tried using a Corsair AX750, no change.
Second motherboard I tried was an Evga X58 FTW board with each one of those PSU's and the Evga GTX 670. Same thing
Latest motherboard I'm using now is the Asus Rampage IV Black Edition. Brand new board, with a brand new chip, brand new RAM, same video card. Still does it.
Any ideas as to whats going on?
All my settings are at stock, nothing is being overclocked, not even slightly. the PSU's I have in are more than enough for a stock CPU and a stock GPU. I've changed everything from motherboards, to PSU's, added new memory sticks and the same thing keeps happening. The only thing thats remained constant is the video card, the Evga GTX 670, and the SSD, Crucial M4 256GB.
Could a video card or SSD be causing this problem, or is it something in the BIOS?
System spec:
Asus Rampage IV Black Edition
Intel i7 3930K
@stock clock and voltage
16GB Corsair Dominator Platinum RAM 2400Mhz (2x8GB) @1600
Crucial M4 256GB SSD
Windows 7 64 bit
Evga GTX 670 2GB
@stock clock and voltage
Corsair AX1200
CPU and motherboard are being water cooled. Temps under full load during F@H never reach higher than 42C. (3x480mm rads, 2x360mm rads, 1x240mm rad)
All of the voltage settings in BIOS is at auto and nothing is being over clocked.