Problems with displays

[minolaft]

Since around 3 days ago, my desktop would turn on fully but no output is displayed. This started when i got invited to play a game, when i started the game my pc completely shut down, now whenever i try to turn it on nothing happens on my monitors but I can hear the computer is fully functional with the fans.
GPU: AMD Radeon HD 7800 series
CPU: AMD FX(tm) 4100 quad core processor
RAM: 16gb
Psu: 500w
Thank you

 

[rgd1101]

gpu or psu failed