Computer only runs for a second.

[ThatOneGuyHilmer]

I just finished my latest build, no different than any other build I've done for some people who want to start PC gaming. But this time when i try to run it it'll only run for about a second. For that one second everything starts running only to stop. I don't have to unplug the power in order to retry this. I've triple checked all my connections and can't find anything out of place. I was very careful to make sure i did everything according to the manuals to try and avoid issues such as this. Any insight or suggestions into what's causing this issue or possible remedies will be greatly appreciated.

 

[mace200200]

I just asked someone else to check the voltage selector on the back of the PSU. When it's set wrong it'll go for a second, stop, then usually start over again right away.

 

[pauls3743]

It's also possible the psu is DOA. Try it in another computer and try another power supply in this computer.

 

[ThatOneGuyHilmer]

Yup, it was as simple as a bad psu. Thanks a lot!