Question Changed computer cases and now PC will not power up at all

[MinKee]

I have a ROG strix z790-a motherboard, msi 1000g PSU, GeForce 4070 super, I just changed over from a pre built case to a ASUS tuf 502 case, I am re using the fans from the pre built case. All of the components were in the original case working fine, when I plug in the new case the motherboard rgb turns on but when I press the power button nothing happens, anyone have any suggestions on a fix could be? It looks like everything is plugged into the motherboard correctly

 

[RAIDGoblin]

check, double check and triple check everything, check first that nothing is shorting on the back/front of the mobo, then that the power cables are all plugged in, and are all properly plugged in, that the ram is fully in, CPU fan is fully in, GPU is fully in etc...

next check the switch header, and look up the front panel pinout of your mobo, after you are sure you have checked everything else try putting a jumper across the power switch pins on your mobo instead of the case switch

it worked before so it's likely that you have missed something