External build worked but internal build won't

[Bobo3]

Hi, this is my first pc build. So I got my external build to work, the splash screen showed and i pit it all in the case. But when I try to power it on nothing happens, not even the post beep. What do I do? I checked all of the cables were seated properly.

My build: https://uk.pcpartpicker.com/parts/partlist/

Thanks for the help in advance.

[The Official Czex]

Hi, this is my first pc build. So I got my external build to work, the splash screen showed and i pit it all in the case. But when I try to power it on nothing happens, not even the post beep. What do I do? I checked all of the cables were seated properly.

My build: https://uk.pcpartpicker.com/parts/partlist/

Thanks for the help in advance.

 

Use the permalink instead of the parts list link. The parts list link links us to our last-made list, not your PC.

[denestmor3]

Check the back of your motherboard you might have damaged it while putting it in the case. Try again externaly to check if all the hardware still works maybe?

[Bobo3]

I tried that guys, it didn't work so I took it apart and reassembled it, turned out i had mixed up the power + and -, thanks for the suggestions though