Crashing to black/white/random color screen during video games. Audio also loops

[STOICmang]

Hey everyone. This is my first post and I'm not positive it's a motherboard issue or not so I apologize if it's in the wrong thread.

Specs:
Windows 8.1 Pro
Asus P8P67 Deluxe
EVGA GeForce GTX 560 ti 448 core
Intel core i5-2500k
16gb GSkill RipjawX 1600
Sentey XPlus Modular 725
64gb SSD for OS
3 tb HDD for bulk things like games.

The Problem: Starting about 3 months ago I started getting infrequent crashes while playing video games. It was rare so I mostly ignored it. My monitor would flash to either all white, black, or a random color and the audio would loop the last sound and sometimes buzz continuously. The system would then have to be hard shut down and rebooted. On a few occasions I would be in Ventrilo or Skype or some other voice comms and as my computer freezes I can hear the looped audio but I can also hear my friends still talking but they can't hear me. As time went on the crashes got more frequent. It's odd because old games like Guild Wars from 2004 on the lowest settings will still crash the system, but for the longest time a somewhat intensive game like H1Z1 never crashed. Once a game has started crashing, after rebooting it will usually crash in less time then before until it crashes as soon as I get to the end of the loading screen. I have been able to find a pretty consistent way to cause the system to crash and that's starting a bot server on Counter-Strike: Global Offensive on a map made in the work shop. As soon as it gets to the end of the loading screen it crashes.
It's to the point now that I haven't found a game I can consistently play without crashing, but H1Z1 crashes the least.

What I've done to troubleshoot:

• 
  ■ Uninstalled/reinstalled games that were crashing
  ■ Uninstalled steam from the HDD and installed on SSD
  ■ Update graphics drivers (This includes with and without GeForce Experience, wiping all previous drivers with guru3d then installing up to date drivers, and reverting back to drivers from several months ago when the crash wasn't occuring.)
  ■ Update BIOS and all mobo drivers
  ■ Update audio drivers
  ■ ran memtest86 on the two 4gb ram sticks for 4 passes with no errors on either. (other 2 sticks were confirmed bad)
  ■ Benchmarked the GPU on several different programs including EVGA's OCScanner and FurMark. I was getting around 20-30 fps on furmark and around 80-120 in OCScanner IIRC and the GPU temp would get up to 87 but never crashed on either benchmarks.
  ■ Ran chkdsk /r on both hard drives with no errors
  ■ Reformatted and fully wiped both drives
  ■ Reformatted from Win 7 to Win 8.1
  ■ Took out all ram and gpu, dusted case, applied fresh thermal compound on the cpu, and reseated ram/gpu.
  ■ Unplugged everything except for the monitor, keyboard and mouse
  ■ Decreased my memory clock from 1950 to 1450 (This is an interesting one. On some games this seems to help lengthen the time before the crash but it may just be extremely coincidental. After crashing on default 1950 several times in a row in CS:GO, I clocked it down to 1450 and was able to finish the game and play another before it crashed again. I downloaded two new games today and both were the same situation, but it only lengthened the time before crashing from right after the loading screen to about 15 seconds after it.)
  ■ Probably 30 other things I can't think of right now including probably 15 solutions to others having the same problem on this website.

It's also worth noting that while H1Z1 will continue to work even when the GPU is up to 87 degrees, CS:GO and other games will crash even if it's at 45 degrees.

I took my computer to the best repair shop on town and even they have no idea what's going on. My thoughts are the motherboard is on its last legs so that's why I posted here.

If that's not it my next course of action is to reformat again but this time put the OS on my HDD to see if there's some underlying issue with the SSD.

Sorry for the wall of text and any feedback would be greatly appreciated!

 

[STOICmang]

Bump?

 

[romirez]

More videocard problem

 

[STOICmang]

Care to elaborate...? What would make it crash consistently in all games but one? Why would it be crashing at 45 degrees but not at 87 degrees?

 

[STOICmang]

Still looking for help on this...

 

[STOICmang]

bump

 

[romirez]

Try to play with GPU and GDDR clocks. Use *MSI Afterburner*

 

[STOICmang]

I have.

"Decreased my memory clock from 1950 to 1450 (This is an interesting one. On some games this seems to help lengthen the time before the crash but it may just be extremely coincidental. After crashing on default 1950 several times in a row in CS:GO, I clocked it down to 1450 and was able to finish the game and play another before it crashed again. I downloaded two new games today and both were the same situation, but it only lengthened the time before crashing from right after the loading screen to about 15 seconds after it.)"

The crash is now happening even when not in any game.

 

[STOICmang]

Reformatted again and put my OS on the HDD instead of the SSD and it still crashes.

 

[romirez]

Use another videocard for test.

 

[Tincan79]

I wonder if an answer to this was found?
STOICmang used many fantastic isolation / diagnostic tools.
I would agree with you STOICmang the most likely fault had to be a MOBO chipset fault, in other words, MOBO got old and broken.

 

[STOICmang]

Unfortunately, no, the problem was not fixed. I took it to a second computer repair shop who claimed it was a faulty GPU. I have since been given another computer which I have been using. Some time in the next few days I might switch out the GPU from my new rig into the old just to test it out but I'm not going to get my hopes up.