NightMiu

Fixed it. It was the gpu overheating actually, not the core but some other component that I couldn't read the thermal output of. I Swapped my 980Ti for a friend of mines 970 and they both worked in our systems. Now the only major difference between our systems is that his case got much better airflow (due to my reservoir blocking most of the airflow to the gpu) so i jury rigged a fan with some zip ties to the side of my case and lo and behold the gpu worked fine again. Now why the gpu decided it was time to poop it pants idk it's been working fine before... And adding to my confusion it was still freezing my pc after I replaced the old thermal paste and pads. But meh, works again now huzzah! Check the spoiler for an epic view of my new cooling solution.

I'm at a total loss, I just installed another gpu in the system that is freezing and it worked fine (XFX HD 5870, my old card). Like what the hell is this? the ultimate troll pc? So here is where I'm at, 980Ti works in another system but computer locks up when its installed in mine, an old 5870 works without freezing the pc. I have tested with two diffrent psu's, new drivers, new windows install on a seperate drive, loaded optimized defaults in the bios, tried diffrent pci slots, system also works fine with no gpu installed. It has to be either the mobo or gpu right? why just why...

yes, all the basic troubleshooting stuff has been done, new windows install, drivers etc... Maybe the mobo is dying...

Already done that no other change than a 8°C cooler card

yes and yes again

yes and yes.

Yo, this post is more or less just a repost form overclock.net forum, I'm just trying to solve this problem as fast as possible, cause not having a working pc sucks... So the problem is that the pc hard freezes during intensive gpu tasks like gaming or furmark stress test. It takes around 5 to 15 min before the system locks up. I've taken out the gpu and put it in another system and it worked fine, then I used another psu in the pc, the freezeing is still happening. All temps look good. If I stresstest with aida64 system is stable. This only occurs when I'm doing a gpu intensive task. Which makes me scratch my head a little since the gpu worked fine in another system. One thing to note is if I reboot right after the freeze my bios will freeze too. Now I've had this problem before and what I did was to increase the voltage to my gpu once and poof my pc worked for 6 months, until it failed again now. But this is so strange since it worked in another system...I'm just so god damnd confused.... So do you guys have any suggestions on what could be causing this?

Increased the voltage on my gpu by 10mV in afterburner, running fine again now. Seems like the gpu is dying.

Removed the gpu and ran tests with integrated graphics, worked fine. Placed the gpu back in and the problem is back.

I ran 3 tests, the pc freezes between 9 and 14 minutes, that's the only consistent "data" I've been able to find so far. Gpu looks good mem and clock frec looks good to. I'll add pictures from my last test (test 3) after 5min into the test and when it froze. I also tested my ram with memtest86 while I was sleeping, it came out clean 0 errors. Spoiler 1: When the pc froze. Spoiler 2: 5 min into the test.

Aight I'll try out memtest86. But I stress tested the cpu, fpu, cache and ram in aiada64 for 14hours. Just finished some more testing, can't crash it in aida64, but I can crash it in vally, (benchmark tool, gpu temp was 76c) so it points me towards gpu/psu/mobo problem. I'll add some pictures of the temps maybe you guys can spot something I overlooked. The pics are from my second freeze when I was playing H1Z1 (if the pictures are hard to see zoom in on them)

I've recently started playing H1Z1 King of the kill, could that game have a memory leak that would freeze my system? Edit: Pc freezes aprox. 5-10min after I've launched the game. I'm running stress tests now to see if I can replicate the freezes. Edit:2 No problem replicating the problem with Vally and aida64 running at the same time, gonna test aida64 alone now

The thing is the system have worked for almost a year, and than this is suddenly happening. My problem now is figuring out which component is failing. I doubt it is the ram cause I've already tried the Windows Memory Diagnostic tool which gave me 0 errors.

Tried with a second windows install on a separate drive, the problem still persist. Which again makes me lean towards a hw component that is failing. I*m still up for more suggestions ppl.

Yes I do, but I don't think it is windows that's the problem since it froze in the uefi bios, I*m leaning towards component failure, the fact that it froze after the install of 7zip and powerdvd could be a total coincidence.