Sorry for the looooooong post, but I wanted to get as much detail as I could into the first post so that this wouldn't become a question-fest.
Recently my PC has been crashing whenever there is a load put on it (e.g. gaming). Whenever the GPU starts to spin up the game I'm in will start dropping frames and finally my screen will go black, with the sound still playing for a few seconds, which then slowly lapses into a loop of repeated sounds and the normal game audio for several seconds until finally the just goes into a complete dead tone, then a restart. One time this happened, the PC went to a dead tone and then a fan (I can't attribute it to a single one in my PC, since I have a top chassis fan, back chassis fan, GPU fan and CPU fan, but one of them started spinning ~3-4x faster than normal for about a second or so before the PC restarted.
I used SpeedFan to log GPU temperatures while I went for a test run and it appeared to stop logging when the temperature clocked in at 103 C (212 F). I have a EVGA GTX 670 and have read around the place that it happily works in the 90 C range. When I had been gaming previously (before the issue started), it would go to around 94 C and sit there until I finished the game, dropping dramatically back to 40 C at idle and 60 C at medium load.
I explained the issue to a friend and he said that he had the same issue. Upon describing his issue I concluded that it was indeed the same issue, and he said that after countless RMAs they (not sure who) told him it was a motherboard problem. Once he changed his motherboard it appears he hasn't had any issues, but I can't personally attest to that.
When he told me it was a motherboard issue I was thinking of any possibilities for why it would suddenly start dying and could only really think of one thing: A few days ago my grandmother turned on a really old cooking pot on the other side of the house which blew the fuse for the part of the house my room is connected to, along with the safety breaker for the entire house. Would this have caused some form of short circuiting in my motherboard, resulting in some malfunction when it is under heavier loads?
I have sent a Tech Support Ticket to EVGA as well about the graphics card to see what they say, because after taking logs with GPU-Z it seems the computer crashes after clocking in at 979.8 MHz Core Clock Speed, Memory Clock at 1502.3 MHz and 99% GPU load. I have further uploaded the log here for viewing.
Thanks for reading, and hopefully someone here will be able to shed some light on this mystery...
If it is indeed a motherboard problem, would it be worth going and forking out some money on a new motherboard (looking at the Asus Z77 series right now, but I'm up for suggestions), or trying to get some warranty from AsRock for this current motherboard (H77M bought last January).
Oh, I should also point out that I have not overclocked the computer at all, so overheating from incorrect voltages etc isn't possible.
EDIT: Forgot to paste my current build...
- CPU: Intel i5 3570K 3.4GHz
- CPU Cooler: Thermaltake Contac 16 CPU Cooler Aluminium
- Motherboard: AsRock H77M.H77
- Memory: Corsair 16GB (2x8GB) CMZ16GX3M2A1600C9 Vengeance DDR3 1600MHz
- Storage: Intel 520 series 120 GB SSD | WD Green 1TB WD10EURXAV-GP
- GPU: EVGA nVidia GeForce GTX 670 2GB
- PSU: Thermaltake TR-600P TR2 RX 600W 80+ Bronze
- Case: Antec Three Hundred Gaming Tower No PSU (Black)
- Network Card: TP-LINK TL-WN881ND
- DVD: Samsung SATA Black Internal DVD RW Drive (I know there are a lot of dumb decisions in there, but for now that's not an issue)