Question PC still won't start after the PSU was relaced

[VictaB]

I recently built a PC with help from on here. Then the PC made a loud pop noise and wouldn't start I tested the PSU and it was dead and I got a rma for it and I received a new replacement yesterday. I just installed it into the PC and now the PC still won't start. Please help what could be the problem now?? Thank you

 

[JohnBonhamsGhost]

did you also test the other components after the original power supply died?
it's very likely that it took other directly connected components with it when it blew.

what make & model is the power supply?

 

[VictaB]

It corsair cx550m power supply.
How do you test the other components please?

 

[JohnBonhamsGhost]

How do you test the other components

you either try them yourself in a functioning system or you pay a local shop to diagnose for you.