Question GPU artifacting and not detected by motherboard

Aug 11, 2022
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Motherboard: Gigabyte Z690 Gaming X
CPU: i7 12700KF
GPU: GALAX 3080 SG
PSU: Phanteks PH-P750GS

I recently built a PC about 2 months ago and it was working fine for a while until one day it started what I assume is artifacting from the GPU.

https://postimg.cc/gallery/KgNzdwy

When this occurs the PC will usually completely freeze up and then restart. However recently it has started attempting to reboot but the VGA light on my motherboard will be lit up red and there will be no display. The GPU is lit up and the fans are running but it doesn't seem to be detecting anything.

Since the last time the GPU messed up I have put my old 1080 in the PC and so far it seems to be working fine so far.

Fixes I have tried:
-Fresh installing windows
-Reseating the GPU
-Q Flash Plus on the motherboard
-Removing the CMOS battery
-Reseating the RAM
-Various different monitors in all slots, HDMI and DP
-Using a different power cable and different wall socket

Wondering if there is any possible solve for this or if the GPU is just faulty?
 
Motherboard: Gigabyte Z690 Gaming X
CPU: i7 12700KF
GPU: GALAX 3080 SG
PSU: Phanteks PH-P750GS

I recently built a PC about 2 months ago and it was working fine for a while until one day it started what I assume is artifacting from the GPU.

https://postimg.cc/gallery/KgNzdwy

When this occurs the PC will usually completely freeze up and then restart. However recently it has started attempting to reboot but the VGA light on my motherboard will be lit up red and there will be no display. The GPU is lit up and the fans are running but it doesn't seem to be detecting anything.

Since the last time the GPU messed up I have put my old 1080 in the PC and so far it seems to be working fine so far.

Fixes I have tried:
-Fresh installing windows
-Reseating the GPU
-Q Flash Plus on the motherboard
-Removing the CMOS battery
-Reseating the RAM
-Various different monitors in all slots, HDMI and DP
-Using a different power cable and different wall socket

Wondering if there is any possible solve for this or if the GPU is just faulty?
Thinking your psu is a little light for your setup.

The 5 year warranty would have been a flag for me.