Turned on.. and nothing

[potatocougar]

I built my old computer with some parts of my old one and realised that the old case wouldn't fit. So I build the pc without the case and It worked fine. Then when I got the case, I put everything in and now I turn it on and get nothing. Everything is plunged into the psu just like when it was working, not sure what happened to cause it to not work anymore. Thank you to anyone who gives feedback

 

[hang-the-9]

Have someone else there look over the system, most likely thing is that you have connected something in the wrong spot. If someone else can't find anything, try another known good power supply. You will just need to start checking parts to find what failed, as long as things are confirmed to be in properly.