Computer doensn't stay on when powered on

[janco]

Since I put a crappy power splitter cable in my computer, which i have since removed, it has has trouble starting. When i press the power button it only turns on for a split second then turns off again. Occasionally I am able to successfully start it up if i press incredibly rapidly or something, and then it works perfect, but that is a huge hassle.

I want to know if the problem comes from my Mobo, or PSU or possibly wires?

Is there any way to be sure?

here are some pictures if that would help..


-When i press the button

-Right after pressing

-The cable that caused the issue

the cable that caused the issues

 

[ganzey]

looks a little dusty in there, get an air compressor and blow it out and then try again.

 

[janco]

I think I'm gonna get a PSU because i need a new one anyways. what site has good deals on them? I heard newegg isn't neccesarily the best place, but theyr the only site i have for parts.