PC won't turn on after setting it to sleep?

My PC has been running fine with no hardware changes to it (the past year at least), but yesterday I decided to try out the 'sleep' mode feature that activates after 2 hours of not using the computer.

I wake up and I thought my PC was still in sleep mode as it had no lights on. I have tried many ways of turning it on, but to no avail.

The only light on is the motherboard LED, but I found out that works as long as you have the cpu plugged in.

I'm thinking it's a PSU problem but open to other ideas or ways to find out as I dont want to buy another one if possible.

Thanks for reading and the help!

Submitted December 31, 2017 at 01:54PM by MrOcean420 http://ift.tt/2lqkRyb