PC won't boot at all after sudden shut down

Nashlaga

Prominent
Feb 23, 2017
1
0
510
My PC while playing a game completely shut itself down with no warning and isn't showing any signs of coming back on. All I have from it is a light on my Xbox controller that comes on for half a second when I plug it in. The light on the controller should stay on but it just instantly looses power.

There is no light on the motherboard or on the power button (because there isn't an LED there, not because it's off). When I press the power button literally nothing happens, no fans, no beeps.

Specs:
Gigabyte 78LMT UD3
Unknown 8GB 1600 MHz ram
AMD FX-6350
GTX 750Ti
Unknown 500w power supply