I recently decided to build my very first computer, after a long 7 hours of mounting everything and cable management i tried to boot my PC for the first time only to find absolutely nothing happens.. Everything is plugged in, I've tried using different outlets.. When i turn the switch on from the back the red LED's on the PSU light up for half a second then dies out, which leads me to believe that the PSU is a DOA but when i hit the power on the front of the case the blue LED turns on, but no fans or anything else run, any thoughts and what's causing this?
PSU: OCZ OCZ750FTY 750W ATX12V
Mobo: BIOSTAR TZ68A+ LGA 1155 Intel Z68
Case: Antec DF-85 Black ATX Full Tower Computer Case
CPU: Intel Core i5-2500K
Not sure if the rest is relevant so i'll just leave it at that.