Power supply wont turn on, everything works

[diethaterade]

Im replacing my old PSU which was 500w, and now im putting in a 700w PSU. I've done the paperclip test on both power supplies and they both work. I've plugged everything in but i still have no luck. What am I doing wrong? When i plug the power in, and turn it from "O" to "I" nothing happens. Please help im a noob with hardware.

 

[clutchc]

The switch on the PSU? Have you pressed the power button on the PC?

 

[spdragoo]

This may sound stupid, but did you hit the power button on the front of the case? The "0/1" switch on the PSU itself only governs whether it will provide power to the equipment itself, but actually turning on the PC still requires pressing the case's power button.

 

[diethaterade]

I've found that when taking out my older power supply I accidently unplugged 4 small cables connecting to the motherboard. They all seem to connect to the same spot, but they are separate cables, of different color, and seem to take up 2 pins per cable. I reconnected them, and plugged in the power. I switched the O/I and pushed the front power button and everything seemed to work! Thanks for the suggestions.

 

[clutchc]

Lol... Those were probably the front panel wiring. It includes the power button on the front/top of the case.