Hello, hoping y'all can point me in the right direction -- I'm running out of ideas.  While gaming I'm getting a "swarm of disco fireflies" multi-colored flashes all over the screen followed by screen freezing.
 
 <a href="https://imgur.com/rDoI8NQ"><img src="https://i.imgur.com/rDoI8NQ.mp4" title="source: imgur.com" /></a>  17 second video -- flashing lights / freeze happens just at the end of the video.  
 
This happens during any game -- AC Odyssey, The Witcher 3, Pillars of Eternity, Skyrim -- mostly during cutscenes / while talking to NPCs / trying to absorb a dragon's soul.  Screen freezes but the game continues to run in the background (can hear it) however cannot access Task Master to close -- have to reboot the computer.
 
Temps are fine -- GPU idle 30, load 68  (pic below, had to reset the computer so they may be a couple of degrees off)
 
Tried numerous drivers -- using DDU to uninstall -- and only loading driver & 3D (no GE)...   doesn't help.
 
Tried debug mode -- no impact, still flashing lights and then total freeze.
 
Tried running Unigine Heaven -- failed -- crash occurs before program can finish.
 
Tried running 3DMark Timespy -- failed -- crash occurs before program can finish.
 
Built computer JAN 2018, all parts purchased new. CPU not OC'ed ... GPU running at its native OC (?) -- haven't messed with any OC.
 
CPU: 8700k 
GPU: 1080 Ti SC Black 11G-P4-6393
Mobo: ASUS ROG Strix x370-e
RAM: 16GB Corsair Vengeance LPX
Case: Fractal Design Meshify C
PSU:  Seasonic FOCUS Plus Series 750W  80+ Gold
Cooling: 
Corsair ML 2@ 140mm intake on NXZT x62 Kraken
Corsair ML 3@ 120mm exhaust
 
Reliability screenshot below -- all those are flashing, freeze and then reboot.
Have always used XOC... heard about X1 - tried that, no change -- reinstalled XOC.
 
Any help would be appreciated.
 
Thanks for reading.
 

 


 
 
 

Clearly problem with GPU RAM.
 
Here is nice video about it: youtube.com/watch?v=IDFmZXirzuo

Sajin
Try underclocking the core & memory to max negative values with msi afterburner. See if that does anything for ya.

Grabbed MSI Afterburner and lowered Core Clock (Mhz) to -400 (max negative) and Memory Clock (MHz) to -502 (max negative)

 
 
Both Unigine and 3DMark Timespy crashed and froze -- pictures below.

Sajin
Time to rma.

Well, dang. Thanks for the heads-up. Will start the ball rolling on that tomorrow.  Appreciate it !