GPU artifacts / glitches Help!

[GirvanaWantsBinnieBalls]

For the past couple of months now ive been having glitches / artifacts similar to the image below.

 

For examble i will login to a game like RUST and after 10-15 seconds these lights will appear ,

raising in numbers and getting stronger until the game crashes at which point the sound of the game 

keeps playing for an other 10 seconds , and finally the app gets eliminated on its own.

 

Keep in mind i havent had an issue like this in games like League Of Legends at all.

Also i ran Geeks3D at QHD and the temps seem ok .

• GPU : gtx 1070
• CPU : r7 1700
• Ram : 16 gb 

I have never overclocked the GPU , it is 4 years old , and I bought it USED about 2-3 years ago and it hasnt shown a problem since about 5 months ago 

BUT i have tried overclocking my RAM which crashed my PC so i did a bios reset and never touched overclocking again.

.

Af