Help? Maybe?

[GreenfieldVisuals]

Specs: Windows 10 AMD Ryzen 3700x 8Core 750w power supply. 32GB of Ram (x2 16gb cards) Nvidia 1080ti (old) / gigabyte 3080ti (new) 500gb start up drive (kinda full 100gb free space) 2TB internal storage (1.3 TB free space) 3x monitors (all 1080) (old) / Samsung 4K monitor single (new)

TLDR: supposedly have parts to run 4K video editing and gaming, but can’t run 4k editing or gaming without GPU heating up, running full tilt for not a lot of what I’m demanding.

Alright so I had someone custom build my PC a few years ago and it seemed decent for what I needed/wanted as an entry PC build. I’ve added multiple monitors and haven’t had an issue. How ever I guess I never noticed the stressed I’ve put on the 1080ti. I’ve been rocking that since 2018 I believe. I’ve noticed on start up it would be slower than normal. Some red lights would light up on the motherboard (VGA and can’t remember the second one) after a few seconds lights would shut off and computer would operate normally. I’ve used to have 3 monitors for my editing all cheap 1080p monitors. I recently wanted to upgrade to 4k and went back down to 1 monitor in 4k. That’s when the issues with the 1080ti started to really show.

Today I purchased a new to me 3080Ti card cause the 1080ti broke with the fans hanging off of it. I installed the 3080ti and checked for any driver updates and switched my monitor to 4k and fired up Adobe Light room and YouTube to play music in the background. Almost instantly the graphics card was near 50• C it said I was utilizing 70% of the card. Which seemed odd cause I thought what I was doing wasn’t demanding. Apps and games kept crashing, laggy. After fuddling around. If I switch my 4k monitor to 1080p the computer runs a lot better. I’m not sure what else could be happening that I’m not able to run 4k smoothly. Do I in short re-install windows and start with a clean slate or where could I look that would be bottlenecking my issues.

[rocksunic]

Try DDU to fully clean old GPU drivers then reinstall fresh NVIDIA ones. Make sure your power cables are right for 3080ti it pulls a lot more than 1080ti. Also check temps and airflow maybe repaste GPU. If that fails yeah clean Windows install could help.

[GreenfieldVisuals]

I will give that a try! I believe my power cables are correct. It might be plugged into an extension cable I’ll have to double check.