Computer will not power on after I moved it

Cole1030

TS Rookie
I recently moved my computer from one side of my desk to the other and somehow it managed to make it so when I press the power button nothing happens. I've disassembled and reassembled the computer numerous times and tested the psu. The psu is working and it seems like the motherboard is the culprit. What is confusing me the most is that when I short the 24 pin connector to the motherboard then plug it in if I also press the power button I can turn on the computer. I dont see that as a permanent fix just in case it sleeps and I assume it is not good for the computer so I am looking for help on how to permanently fix my issue. Thanks in advance.