GPU has randomly stopped working. Help!

[Mark_Baxt]

I hate that I have to write this as I was hoping what I have tried would fix it but unfortunately not.

 

i have a gigabyte RTX 3080 ti gaming oc 12gb. I bought it off eBay for £500 as I wanted to upgrade from my 2060 and thought this was a good deal and would last me a long time. (Also I know it’s expensive that’s why I’m really panicking about this.) I bought it maybe 2 months ago and about a week or two ago I water cooled it (I’ve never water cooled a GPU before) So it’s possible I broke something while installing the waterblock but would that not have been immediately obvious? My temps under load I never saw exceed 60 degrees so I don’t think it could have been based on overheating.

 

For backstory on how it happened, I was just playing gta with some friends then suddenly computer froze, (I could still hear some audio, mainly windows sounds, but discord audio stopped.) I didn’t know what to do, so I pressed the power button it waited a second and the pc shut down. I’m guessing this was a windows shutdown as I believe windows was running just not displaying. So hopefully no file corruption. Then when I turned it back on again, windows appeared to be running due to the fact my windows hello webcam light was flashing and I heard the computer sign in but there was just a few LEDs on my monitor on. I’ll attach a photo.
 

More recently the computer won’t go into windows in the background at all. My motherboard is an asus rog strix z390-f, it has some led lights during boot sequence to help with trouble shooting and the VGA light remains on so it’s definitely a GPU issue and I was able to access my pc if I plugged my monitor into my motherboard and used my iGPU. I tried updating graphics drivers in GeForce experience but after express installation had finished it just came up with the express or custom install buttons again it didn’t say it was up to date (probably because it couldn’t find my GPU). Also in auorus engine it didn’t seem to detect the GPU.

 

However, I have some hopes the GPU is still a wee bit alive as in GPU-Z it still recognised the GPU as a 3080 ti and all of its details. And in my BIOS it has a PCIE menu sort of thing and it detected a GPU was plugged into the PCIE slot. I’ve confirmed the PCIE slot works as I’ve plugged in my old 2060 and it boots fine. 
Another thing to note is the GPU was originally in a riser cable due to being vertically mounted, however I tried it without the riser cable and it still doesn’t work.

 

Im completely stuck, I’ve emailed gigabyte support however because I’ve custom water cooled it and it’s used I doubt they’ll honour any warranty it may have and I’m just praying there is someone here with a fix. I’ve tried to include as much detail as possible to maybe help, if you have any more questions feel free to ask I’ll take all the help I can get.

 

Thank you!

Mark

[ET_Explorer]

Driver Issues: Sometimes, outdated or corrupted drivers can cause your GPU to stop working. You can try updating or reinstalling the drivers to see if it resolves the issue. Power Supply Issues: GPUs require a stable and adequate power supply to function properly.

[Mark_Baxt]

12 minutes ago, ET_Explorer said:

Driver Issues: Sometimes, outdated or corrupted drivers can cause your GPU to stop working. You can try updating or reinstalling the drivers to see if it resolves the issue. Power Supply Issues: GPUs require a stable and adequate power supply to function properly.

How would I reinstall the drivers? It didn’t really work through GeForce experience. And would it work if it’s not properly detecting the GPU? And power supply I think is fine. It’s work well until now, it’s an 850W gold PSU.

[Renegade042]

Did you run a file check?

Run a command prompt as administrator and type sfc /scannow.

Maybe you are lucky and there is some file corruption.

 

Got a spare drive you could do a fresh windows install on?

[Mark_Baxt]

Its working! Not completely sure how I did it, ET thank you for suggesting about the drivers as it led me to this (https://www.nvidia.com/en-us/geforce/forums/geforce-graphics-cards/5/341175/graphics-card-suddenly-stopped-working/) which at first I thought didn’t work but I ended up restarting one more time with the Ethernet cable plugged in and it worked! Must’ve been a bad driver. Thank you Renegade for your suggestion as well, I just didn’t see it until I tried this. Thank yous!