HELP ME Point Of View GTX 960

[Guilherme]

Hello, i have a Point Of View GTX 960, i'm using it since July, 2015. I always look the temperature while i'm playing, by a month the gpu isn't working well. I use the MSI Afterburner to check the temperature and to set the fan control, the temperature it's going high for nothing. For example, I always played American Truck Simulator, but i can't do it now because the FPS drop and the temperature go to 90°C. If I put the low graphics i can play (the FPS stay in 60 stable and the temperature 51°C), but if I put in ultra or high no, and I always played in Ultra settings. I already change the Thermal Paste and clean all the computer one time per week.

The only game I can play it's League of Legends even if I put in ultra settings the temperature stay in 60°C and i get 60 FPS stable, the other games (GTA 5, CS:GO, RE7, Far Cry Primal) it's horrible the performance. The temperature goes from 60°C to 90°C and back to 70°C in a second, literally.

I'm brazilian, my english isn't very good. Please, someone help me, I already asked in so many brazilian foruns but no one knew answer me, I need your help.

Note1: When I was playing American Truck Simulator yesterday, the monitor come black and appeared "No Signal", 10 seconds later he back and when i looked to the MSI Afterburner, the GPU temperature was in 0°C during this event.
Note2: Sometimes when the computer it's starting, the GPU make some acute noise and the monitor stay with no signal, to solve it I need to turn off the computer and turn on again, up until the GPU stop to make noise and the computer can start normal.

CPU: Intel Core i5-3570K
GPU: Nvidia GTX 960
HDD: Seagate ST500LM012 HN-M500MBB 500GB
HDD: Toshiba DT01ACA050 500GB
RAM: Corsair Vengeance DDR3 1600 C9 2x4GB
MBD: Asus P8Z77-V LX2

 

[Guilherme]

Up plsss

 

[Bacon1]

It sounds like you already diagnosed the issue. Its overheating. LOL is probably capped with vsync which is why you get 60fps on ultra and it runs at low temps - because its only rendering 60fps and downclocking because of vsync. Try turning fans up to 100% all the time with afterburner.

 

[Guilherme]

It sounds like you already diagnosed the issue. Its overheating. LOL is probably capped with vsync which is why you get 60fps on ultra and it runs at low temps - because its only rendering 60fps and downclocking because of vsync. Try turning fans up to 100% all the time with afterburner.

But isn't strange? I play American Truck since it was released in ultra settings with max 60°C, and today if i put in ultra settings i can't play, the fps drops and the temperature go up and down like wtf. I've already changed the thermal paste and cleaned up the card.

 

[Bacon1]

I've already changed the thermal paste and cleaned up the card.

Maybe something went wrong with this?