My PC wont turn on well! Help!

GabrielCabria

Commendable
Nov 5, 2016
29
0
1,530
I built my first build not too long ago and when I try to switch it on after leaving it off overnight, it just flashes (the power button) and then I have to take out the power, unplug and plug again (PSU Cable) and put power back on to turn it on. This happens when I leave it for several hours so im not sure whats going wrong. I think it might be the connection of the power supply cable or maybe my power supply itself. Also, when I try to turn it on after the one flash it does nothing. I might go to the store to ask whats wrong if I cant figure it out. Anyone know whats wrong?