PC doesn't start!

[Jet1337]

I just built my pc today and when I press the power button, it starts up for a quick second and shuts down. What's up?

 

[sheag123]

take one component out at a time, see if you can borrow ram from someone to put that in so tsee if its your ram. if it still doesnt start after your gpu and ram is ok, you might need to rma something but you will have to find out what it is, after all that, prolly psu but could be motherboard.

 

[Vic 40]

Have you already rebuild it? If not try that first,see if anything wasn't put right the first time.Make sure al cables are at the right place and make sure the stand offs are in place and the right place as well.