Is my PSU dead?

dposey12

Commendable
Jul 5, 2016
13
0
1,510
System:
Asus B85M-G motherboard
GeForce gtx 650 ti boost
PSU is a Thermaltake TR2 500W
8gb DDR3 RAM
intel i5 (forget the rest, think a 4th gen)
Corsair Spec-Alpha Case

Hey all thanks for checking this out, came downstairs after leaving my PC running only to find it shut off, after repeatedly trying to power it back on using various outlets and what not I hit the forums. I did the paperclip test and my case fans powered on for a second and then shut off. I didn't hear any noise coming from my PSU fan though. Does this mean my PSU is dead? Or is it my motherboard. Thanks in advance!