Hi, so my old psu died and it was fortron hexa 400W 80+ , so i got new one and it is CORSAIR VS550, Everyhting is connected and i turned on my pc for the first time with new psu and everything was okay, until i got some update for my xfx r9 270a. The screen went blue and from that moment i cant enable my pc with psu connected to gpu. When i disconnected pcle from gpu and start my compputer, than it is working... sombeody know what is the problem or psu is just so bad?