Monitor won't show GPU input and stay on sleep

Xindi

Prominent
May 8, 2017
5
0
510
I have had a problem with my comptuer for the past month, i believed the problem to be the motherboard so bought a new one and today after i installed it, all the fnas turned on but there was no display on the monitor and the monitor didn't show any errors or do anything, not even a back light. The monitors and cables work fine as i can use them with my laptop.

What coudl be the problem?
Thank you

Specs:
AS Rock 990FX Extreme3
AMD fx 8350
XFX radeon r9 390 8GB DD eddition
2X 8GB Kingston Hyper x DDR3
 

Xindi

Prominent
May 8, 2017
5
0
510


my bad, i have an amd 8370 not an 8350 is it still compatible