rx570 Any advice guys...

[DarknessFlare]

Okay so my monitor shuts down randomly when exiting game... 
I just wanna point out i got more than enough psu power and I tested my rx570 on another rig and it works just fine...temps are around 60c while gaming...

Tried DDU, older drivers

 

P.S. just played RDR2 for 1h on high-ultra settings and everything was fine till i pressed 
"quit game" which made my monitor go black and said "power saving" like when I turn off PC
But the PC and GPU both still on... 
Any advice? 

 

My rig:

I7-4790 
16GB ddr3 1600mhz
Saphire nitro rx570 8GB
PSU 650w seasonic
 

[LOST TALE]

Try a different cable or port on your GPU. It's usually some faulty display connection.