Alright, posting here because my computer won't turn on the same way it always has, either by the I/O panel or the buttons on the motherboard. The motherboard lights were on as well. Being an ROG board, I could start it up remotely, but that didn't work as well.

I found out how to turn it on by wiggling the power supply's cord until my desktop turns on. However, this is still kind of bothering me. I tested my power supply, by jumpstarting and with a tester courtesy of Thermaltake, and apparently it's still good. Any idea on what this is, and how I can resolve it?

And if any of this helps, here's my specs:

Asus Maximus IV Extreme-Z
Intel Core i7-2600K
Nvidia GeForce GTX 690
G.Skill Ripjaws Z F3-17000CL9Q-16GBZH
Crucial M4 128GB
Four 1TB HDDs (RAID 0+1)
SeaSonic X-1250