PC Doesn't even attempt boot.

E3Sniper

Honorable
Jul 28, 2013
27
0
10,530
So my desktop has decided to die on me for seemingly no reason. Working fine, left it off all day, come back home and it just doesn't boot. No fans, no BIOS, no hard drives spinning - nada. I've tried using the on-motherboard boot button (GA-Z87X-OC if that helps), tried resetting the BIOS by connecting the prongs and still nothing.
 

E3Sniper

Honorable
Jul 28, 2013
27
0
10,530
I've gone and removed all of the plugs and reconnected them. It seems to be giving constant USB power too - any mouse connected will light up, and the LED on the motherboard is on. I don't have a spare PSU, but I've got a Seasonic 1000W 80+ Platinum, so I'm fairly confident there shouldn't be any issues there.

I definitely didn't go overboard on the PSU...