Even on idle my gpu temperature shows around 100-110 C degrees. I have never seen that before.
Also, my gpu died not so long ago. So i tried baking it and i ressurrected it. So, i think baking it broke the sensors and it shows like that. Temps didn't exceed 70C before baking(even on 100% load).
You can see in the pictures i underclocked it. Even at 325-475 gpu-mem clock (those are minimum) temperatures doesn't change.
Also gives a black screen on load. It did that before baking too but after black screen i would do alt-tab and make gpu idle a little and it would be okay. But now, i can't escape from black screen. It needs a restart now.
i know nothing about baking and doesnt seem like an ordinary thing to do, just let it be its dead, buy a new one, i really dont recommand doing what u are but if u wanna bake it go ahead, but my suggestion is time for a new card.
If the card was old, and had a lot of use, what you should of done first without baking it.
You should clean all of the old thermal paste of the Gpu die, and off the cooling plate of the heat sink sitting on the Gpu die., take care if there are thermal pads on the ram chips not to lose them. Once you cleaned all the thermal paste off both. You should apply some fresh compound, to the gpu die in the center, then spread it in a thin layer all the way across the silver part of the die. You then should check how much dust is trapped in the fin sections of the cooler inside the cooler housing and clean all of the thick dust out.
Also clean the Fan blades ect of dust. clamp it all back together fairly tight once done the temps will drop. to about 55c in windows if done right and up to 65c-68c under load when playing a game ect. You were on the limmit of burning the Gpu out at 100c to 110c Btw.
Ah yes, the "oven hack". With the 8000 series GeForce cards there is a problem where soldered joints would detach over time leading to artifacting issues and other problems. Baking the card can resolder the desoldered components and get the card working again. However, there is no guarantee that it will work.
Baking it again isn't going to help your temperature problems. You can try reapplying thermal paste, though at this point I think it's time to just get a replacement card. 4 years is a pretty long lifespan for a graphics card, and there is no way the thing is still under warranty, so you'll need to buy a replacement either way.