Crash to black screen with buzzing sound

[vbcubey]

When I play a game, after about 10-20 minutes my computer crashes to a black screen along with a buzzing sound through the speakers. When it crashes, it crashes the entire system. I can't get back to Windows with alt-tab nor alt-ctrl-del nor alt-F4. I have to reset my computer.

The problem first started about 2-3 days ago. At first I could play games for several hours, but the problem has worsened to the point that I'm down to about 10-20 minutes of game time. I don't have any trouble outside of games. Prior to a couple days ago, I'd never had any problems with this computer.

I tried cleaning my computer, but it was already pretty clean. My case has dust filters, and I try to remember to clean them periodically.

I updated my video drivers. I tried Radeon 18.5.1 and 18.6.1. Crashes still occur.

A number of tests run with games and the 3DMark stress test alongside GPU-Z, HWMonitor, and HWiNFO64 show that the CPU temps are capping at about 61-62 and the GPU temps are capping at about 75-76.

I tried switching the video card from the PCIE16 slot to the PCIE8 slot, but it still crashed after 10-15 minutes of the 3D Mark stress test. Notably, there's no buzz along with the crash from 3DMark, but of course the stress test has no sound.

I ran the CPU-Z stress test for about 20-25 minutes, and the computer didn't crash.

I also used Gigabyte System Information Viewer to turn up my case fans, but that didn't help.

I haven't seen much in the way of graphical artifacts, although I believe I've seen two very small ones in the past day.

My system:

i7-6700K (no overclock)
GA-Z170X-Gaming 7
16 GB system RAM
500 GB SSD (>200 GB free)
Sapphire Radeon R9 390 8GB Nitro (driver version 18.6.1)
EVGA SuperNOVA NEX 650W 80+ Gold power supply
Windows 10 Pro 64-bit

 

[Tolis_GR]

First verify that it's the gpu (which i believe it is). Use igpu for a couple of hours and see if the problem stops. Then, use your gpu again, go to Radeon Settings-Wattman, force manual core voltage and set the corresponding voltage of the last power state to the last 4 power states. If that doesn't work play with the memory clock, downclock or overvolt. I had the same problem, i think it was something with voltage regulation. You can contact Sapphire, maybe they can give you a bios to flash

 

[vbcubey]

First verify that it's the gpu (which i believe it is). Use igpu for a couple of hours and see if the problem stops. Then, use your gpu again, go to Radeon Settings-Wattman, force manual core voltage and set the corresponding voltage of the last power state to the last 4 power states. If that doesn't work play with the memory clock, downclock or overvolt. I had the same problem, i think it was something with voltage regulation. You can contact Sapphire, maybe they can give you a bios to flash

Using the motherboard's GPU, I was able to run the 3DMark stress test and play Crysis for about half an hour, neither of which was possible with the Sapphire. It had to connect to the monitor through HDMI rather than DVI; I don't know if that matters.

I'm really out of my element changing things like voltage settings. Besides, I've had this card for almost three years and never had a problem before now. Is it likely that something could have spontaneously changed in the card's settings without an underlying problem?

Do I have enough information now to say that the problem's the card and just replace it?

 

[Tolis_GR]

Did you update any gpu drivers recently? If so try to revert to previous. By all facts, it seems it's the gpu. Can you try it in another pc?