Is my graphics card damaged?

[MPDota]

So yesterday i was playing PUBG for like 2-3 hours and all of the sudden i smelt burning plastic in my room. I immediately jumped and turned PC off. Initially i didn't know what was burning, i thought that some fan cable that was touching backplate and/or VRM heatsinks started to melt. Checked everything and didn't notice any molten cable isolation. After that i started pc again to find out that my fans on a graphics card (further "GPU") aren't spinning. I don't know for how long was my GPU under extreme temps. And i also don't know what caused fans to stop. I don't believe i could play for 2-3h without em spinning, i think they just stopped at some point. Later on i started Afterburner and it was causing the same issue (Afterburner wasn't initially started, so it couldn't cause the problem). After all of this mess i ran few loops of unigine Heaven benchmark, my score is totally normal, no crashes, gliches, everything works just fine. So is it safe to continue using my GPU? Could something be partially damaged and is just a matter of time when it will fail? What could cause my fans to stop all of the sudden?

My relevant specs to the problem are:
I5 8600k @5GHz 1.31V
Asus ROG Strix Z370-F
16GB HyperX Predator @3GHz
NZXT Kraken X42 140mm
Asus ROG Strix GTX 1080 (Advanced edition)
Corsair ML LED case fans
NZXT S340 Case
Acer Predator XB241YU 1440p 144Hz (G-Sync enabled)
Thermaltake Smart-SE 630W PSU

Thanks for any comments/answers. Cheers!

MakingPlays

 

[bradleyasmith02]

If your bios has it, do a diagnostic test. It should run all of your fans at 100%, at least mine does. See if the fan runs then. If not, I would replace it. If it does, I would just keep an eye on it for the next few gaming sessions and see if it keeps working correctly.

 

[ko888]

The ASUS ROG Strix GTX 1080's cooling fans won't start spinning until the GPU reaches 60°C.

 

[MPDota]

No the fans are spinning now and temps are ok (64-66C under full load), they just stopped spinning in the middle of the game causing extreme temps on a GPU.

 

[MPDota]

@ko888

Sure m8 but trust me it takes few secs after you start a game for GPU to reach that temp. My idle temp is around 51C. So this must have been 90C+ or something, i don't even wanna know. It started melting. Would my PC shut down to prevent damage if it reached some really extreme temp?

 

[ko888]

@ko888

Sure m8 but trust me it takes few secs after you start a game for GPU to reach that temp. My idle temp is around 51C. So this must have been 90C+ or something, i don't even wanna know. It started melting. Would my PC shut down to prevent damage if it reached some really extreme temp?

The only time the fans would stop spinning is if the GPU temperature drops below 45°C or if they lose power. Those cooling fans should be receiving their power from a separate power VRM circuit on the graphics card.

The graphics card should thermal throttle based on the temperature limits programmed into the card's VBIOS. NVIDIA's maximum temperature limit for the GeForce GTX 1080 is 94°C. You would most likely see graphics artifacts before that temperature is reached.

 

[MPDota]

Is there a way that i can check if all of that is fine on my card?

 

[ko888]

Is there a way that i can check if all of that is fine on my card?

You can use FurMark as a stability and stress testing tool.