Computer blacking out ? weird problem

[Einari Polkko]

Build a new computer its my first computer i build myself i watched zero tutorials and basicly just plugged cables where they fit it worked perfectly, But sometimes when i start it the computer it selfs lights up and fans are moving, but nothing happens display doesnt detect any source and my mouse leds dont light up then i give it few restart trough the start button and it starts perfectly. But now it been happening when i am on my computer playing games, computer stays on but monitor blacks out and also my mouse leds dissapear, also teamspeak disconnects so its not monitor problem. Then again i just restart my computer from the button and works perfectly. what is da problem ?
Setup:
Ryzen 3 1200
gtx 670
ddr4 8gb
win 10
motherboard. some new itx if you need more tell me

 

[scout_03]

do you have another gpu around for test also what is you psu specs .

 

[Einari Polkko]

do you have another gpu around for test also what is you psu specs .

Sadly i dont, My psu is VX550W PSU

 

[scout_03]

recheck front panel wiring if you did not mix reset with power and the polarity off the cable are as they should on motherboard try to borrow a gpu from a friend .

 

[Einari Polkko]

recheck front panel wiring if you did not mix reset with power and the polarity off the cable are as they should on motherboard try to borrow a gpu from a friend .

looks like i left some cables unplugged. This is what is written on them "H.D.D L.E.D" "Reset SW" "Power LED -" And "Power LED +" Can these cause the issue ?

 

[scout_03]

the font panel need to be plug in specially the power and reset one the other are led that show the state of system and hdd so plug them all .

 

[Einari Polkko]

the font panel need to be plug in specially the power and reset one the other are led that show the state of system and hdd so plug them all .

Okay thanks hopefully this fixes it !