Sudden black screen, Unrecoverable, Fan spins up, Requires reboot

[TheSelverFang]

Been having this issue for a little while now. Looked for solutions all over and my hunch (and my fear) is that my mobo is dying.

My graphics card will sometimes randomly black screen and the fan gets really loud. The windows error noise plays after a few seconds and then the monitor declares that no input is detected. The only way to recover is a hard reboot. I've only had it happen on a couple games, all of which can be graphically intensive: Skyrim, WoW, Arma 3. It's happened on rare occasion during some program errors, but those have been very rare.

I've tried confirming that all the power cords were securely in place, even swapped some around (my GFX card has two power ports, an 8 pin and a 6 pin, and my PSU cables are 6+2 pins) and for a couple days that seemed to work, but Im having issues again today. I even set up a custom fan curve through MSI Afterburner to make sure the card wasnt overheating.

I was able to record my graphics card stats via GPU-Z the last time it happened, and to the best of my knowledge its not the GPU's fault. I uploaded the log file to mediafire, since pastebin screws up the formatting. Windows Event Viewer lists an "unexpected shutdown" at "2016-06-23 00:09:21", so I looked in the logs within the minute and a half before that and didnt see anything denoting overheating or drawing too much power. Log file: https://www.mediafire.com/?08fc8abkbx20i88

My PSU is an Antec 1200W Platinum, so I have a hard time believing Im running out of power, especially since a rough estimation using a power requirement calculator said I really only need around 600W.

The only thing I can think of other than my mobo dying or my ram being faulty is my CPU's overclock. For some reason my CPU came overclocked to 4.3 GHz. I've tried telling the CPU to go back to factory defaults, but that only works until I reboot the computer, then it goes back to overclocking.

My hardware stats are below:
OS: Windows 7 Professional 64 bit, SP1
MB: ASUS P9X79 LE LGA 2011, BIOS version: 46.04
PU: Intel i7-4930K @ 3.40GHz (12 CPUs)
RAM: G.Skill 2 x 8GB DDR3 1600
GFX: NVIDIA GeForce GTX 770
PSU: Antec TPQ-1200 1200W

Thanks for all your help.

 

[ingtar33]

there is almost 150W difference in the power draw of those two cards.

 

[TheSelverFang]

there is almost 150W difference in the power draw of those two cards.

Would that still leave the Mobo suspect? Or would that at least narrow it down between the PSU and GPU?

Edit: I forgot to mention that the card Im having issues with is declared "Superclocked" in factory. Not sure how much that matters. My PSU still has more than enough wattage for it, provided it's not the PSU that's bad.

GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16814130921

 

[TheSelverFang]

there is almost 150W difference in the power draw of those two cards.

I just did a double check on the manual for the PSU I have and the specs for the "superclocked" version.
The superclocked GTX 770 claims to require at least 42 amps minimum on the 12V rail. The Antec 1200 only provides 38 amps. Would that be the definite culprit? Considering everything that's been said in this thread about this being a power issue, a lack of 4 amps sounds like a definite red flag, but Im obviously far from an expert.

What options do I have other than upgrading to a PSU with more amps on the rail? Can I un-"superclock" to get down to 38 amps?

 

[GTHell]

I think I have the same problem as you. I go buy 2 new PSU and test everything and it seem to be OK. I was so frustrated till I tried something that I never think of before, Replace new CMOS.

Try remove your CMOS and see if the problem gone. And if it does, go buy a new CMOS. If not, It's likely that the MOBO faulty.

Sorry for my English.

 

[TheSelverFang]

I think I have the same problem as you. I go buy 2 new PSU and test everything and it seem to be OK. I was so frustrated till I tried something that I never think of before, Replace new CMOS.

Try remove your CMOS and see if the problem gone. And if it does, go buy a new CMOS. If not, It's likely that the MOBO faulty.

Sorry for my English.

I haven't had any issues with date and time getting reset though, and HWMonitor is reading that my 3VCC values are between a high 3.2V and 3.3V

Thanks for the suggestion

 

[GTHell]

Have you tried it yet before posting this? My CMOS is not dead and it's not about Time/Date because my CMOS also still function properly and remove CMOS seem to get the problem away. It's about electrical issue because of the culprit CMOS. I'm typing with this problem exist and I'm going to buy new CMOS in the next few hour. I'm now running without CMOS battery in at all.

 

[TheSelverFang]

Have you tried it yet before posting this? My CMOS is not dead and it's not about Time/Date because my CMOS also still function properly and remove CMOS seem to get the problem away. It's about electrical issue because of the culprit CMOS. I'm typing with this problem exist and I'm going to buy new CMOS in the next few hour. I'm now running without CMOS battery in at all.

I have not tried it yet. Just confirming all the details. I'll give it a try once I wake up, as it's 05:00 where I'm at right now.