GPU Suddenly Stopped Outputting Video

ethameshep

Prominent
Aug 22, 2017
1
0
510
I recently upgraded to Ryzen, so new CPU, Mobo, and RAM. Yesterday, I suddenly lost video to both of my monitors. Un/re-plugging the HDMI cables and turning off/on the monitors did nothing. Looking at the GPU, the fans were not spinning, but the lights were still on. I still had audio, so the system did not crash. Soft restart did not fix it, so I did a hard restart and turned the PSU off/on for good measure. After that, I had video again.

I've been monitoring the system very closely since upgrading and there were no apparent fluctuations in utilization and temps on the GPU were in the mid 50's. No kind of precursor to the incident. I do have the card overclocked slightly, but I had been running that overclock for months on my old system, so I'm pretty sure it's stable. I've verified the GPU is connected securely to PCIe and power. Latest BIOS and graphics driver were installed.

With the upgrade, there are any number of thing that could have caused it and I am not sure how to proceed troubleshooting. Any help is appreciated.

System:
Ryzen 5 1600
Gigabyte GA-AB350M-D3H
2x4GB Corsair Vengeance LPX 3200MHz
MSI Gaming Radeon RX 470 (1330MHz core, 1700MHz mem)
Corsair CS650M
 

unikinqay

Prominent
Aug 5, 2017
87
0
660


It happens to me from time to time. I think it has something to do with GPU voltage falling to zero and then quickly recovering (at least voltmeter curve is showing sudden fall of GPU voltage to zero). I thought it's GPU's drivers to blame first, but now I think it has something to do with stability of PSU or not optimal GPU's voltage regulation when using multiple display setup. Not many people are using it, so they don't bother to make if perfect like on dedicated multiscreen pro cards. I've used AMD 6780 and NVidia gtx 1050 ti in multi monitor setup (4-5 displays) and had the same problem on both GPUs (getting massage "GPU driver has stopped working but has recovered), so it's probably not drivers fault but you can never be sure. My GPU gets 20 degrees wormer when using 4 display setup in idle, then when working with just one monitor. It makes me think that these gaming cards are poorly optimized for multiple outputs.