Graphical issues - hardware related?

scharpshooter

Distinguished
Feb 23, 2009
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I thought my GTX 960 was dying - my screen was cycling between red/blue/green/white/black, and when it did actually display my desktop, it wouldn't go over 800x600 resolution. In device manager my GPU showed as 'unknown adapter - error 43', despite using multiple different drivers. I completely reinstalled windows, and the exact same scenario persisted. I pulled the GPU and played on my integrated graphics (4690k) without issue (albeit, lower resolution).

So I bought a new rx-470, and everything ran great for a couple of hours. I was playing Overwatch in 1440p on ultra when my system crashed. Read that some people got this when their frame rate was uncapped. So I capped it at 70fps, and played for another hour or 2. Crashed twice more, so rolled the driver back to the second newest on the list, crashed again. I swapped the GPU to the second PCI slot, and played another match or 2 before crashing again.

I went back to the latest driver, and attempted to start the game again. This time I noticed lots of random 'artifacts' on the splash menu. Some text was garbled, and things would flash randomly - sorry I wasn't able to get a good video with my phone. The game is now crashing as soon as I click basically anything on the splash menu. I reinstalled Overwatch, but the issue continues. I am seeing some of the same artifacts when browsing in Chrome, and sometimes it never even boots to the desktop (just see little wheel spinning after motherboard post, and have hit the power button to restart). At this point, my motherboard audio has stopped working, but HDMI audio is fine. It recognizes when I plug into the front audio, but just get a sort of buzzing sound. Rear port is completely dead.

I've swapped my ram sticks around, removed my overclock, and completely reset my bios. New Cmos battery. Removed all extra HHDs, optical drives, and add on cards.

What's my next move here? My GTX 960 will be back soon from warranty service (EVGA rocks btw), and I have a power supply tester arriving tomorrow from Amazon. My thinking was that my PSU (or even my home power?) wasn't providing good power to my GPU until the mobo sound died. But then if it was a mobo problem, I don't see how everything would work fine using integrated graphics

CPU: 4690k
Mobo: Asus Gryphon Z87
Ram: 2x8gb corsair @1866
GPU: MSI 470 Armor, EVGA 960 OC
PSU: Corsair CS850M