GTX 970 gives no signal

[Sezanmk]

Hi there guys, I have a MSI GTX 970 Gaming 4g paired with 4690k and 8 GB Ram.
Here's the weird problem, sometimes after some doing gpu intensive work, my graphic card just stops giving any sensor signal whatsoever. Like if i open Afterburner, all i see is blank data on every one of them, with no slide, even gpu related infos are not shown on the side table, just the cpu ones. Its not like the gpu doesn't work, it still performs, like if i open and run valley benchmark, i get the fps, but don't get any other gpu related infos that are normally shown on the top right. Opening GPU-Z yields basically the same result. If i do a restart, all is fine again. So what's causing it? Any ideas? Have you ever faced something similar?
I've also added some screenshots below, please check it out, this problem is really bothering me since i can't really afford to get another gpu right now. Thank you...!

Afterburner screenshot: https://www.dropbox.com/s/782kulq84i0lfzr/NoGPUData.PNG?dl=0
Valley screenshot: https://www.dropbox.com/s/0s1ckk87t2mxqju/Valleybench.PNG?dl=0
GPU-Z screenshot: https://www.dropbox.com/s/5lgncrbi1keibf3/Gpu-z.PNG?dl=0

 

[scout_03]

did you try to use hwinfo to see how it is detect on main and sensor page specially on gpu-z rendering .

 

[Sezanmk]

did you try to use hwinfo to see how it is detect on main and sensor page specially on gpu-z rendering .

I didn't use hwinfo but on the sensor page of gpu, i get 0 on core/memory clocks. I am just not getting why this might be happening...

 

[scout_03]

you need to tr it and compare to bios to see why it isot detect could be bad sensor and did you try this gpu in another system to see if it report the same .