PC freezing - have to hold off button to restart it

brads2012

Honorable
Mar 26, 2012
45
1
10,530
Hi guys,

I have been having an issue with my system for a few months now, but haven't really had time to invest much time into fixing it since it wasn't a huge deal, but now I have a bit more time and want to figure it out.

Problem:
When doing anything (however I notice the chance of this happening increases when unzipping .rar files) my computer will just freeze. Doesn't accept mouse or keyboard inputs and doesn't provide a BSOD. I am also unable to find anything in event viewer or the logs.
The only way to restart is to hold the power button for a few seconds to turn it off and then turn it back on, since my restart button does nothing.

Sub-problem: I am mentioning this since it could be part of the same problem, but I currently have 2 graphics cards plugged into my mobo. When I have both enabled (SLI or not) my screens will randomly lose input and my PC will restart. Again I get nothing in event viewer for this. To fix this issue, I had to disable one of my graphics cards (I have to redo this whenever there's a driver update, since it updates and enables both cards)

Troubleshooting I've done:
- Updated all drivers
- Reset BIOS (no current overclocking)
- Checked temperature on everything (all seems fine. CPU is self-contained water cooling which stays around 30-40C. Graphics card gets to about 70C at max load)
- Booted with only one stick of RAM once for each slot (I have 4 sticks of ram and 4 slots, so I did 16 combinations)

System specs:
OS: Windows 7 Ultimate x64 SP1
CPU: Intel i7 3770K @ stock 3.5ghz
RAM: 16gb (4x4) Corsair Vengeance @1333mhz
GPU: 2x MSI GTX 760 TwinFrozr with SLI disabled and one card disabled in device manager
Mobo: AsRock z77 Extreme 9
PSU: OCZ ZX 850w
SSD: OCZ Agility 3 256gb (my games and OS are installed on this one)
HDD: WD Caviar Green 3.5TB (music, pictures, videos etc.)
Monitor 1 (primary): Acer GD245HQ 23" @120hz
Monitor 2: BenQ GL2440 24" @60hz
Primary Sound: Razer Magalodon USB 7.1 headset

I'm close to just replacing the entire system soon, as I'm worried I will end up buying part after part to try to fix this problem and possibly corrupt new parts.

Any ideas? Thanks in advance.

 

brads2012

Honorable
Mar 26, 2012
45
1
10,530


I am currently at work but I'll give that a shot in ~12 hours and let you know.
I don't think it's related though, since even when I'm not putting any strain on the GPU the system still freezes.