there is no display when i turn on my pc

mohamedel652

Commendable
Jul 17, 2016
2
0
1,510
I opened up my pc, disassembled it then put it back together, problem is that when I turn it on, it doesnt show any display as if it wasnt connected at all
please help
 

mohamedel652

Commendable
Jul 17, 2016
2
0
1,510
I've got a Nvida Geforce 7300 gs and I plugged it into another computer and it worked fine but when I plug it back into the original one the monitor just says no signal. When I turn on my pc all the fans work including my graphic card's fan