I had to drill two holes for the power supply the top two screws didn't put the bottom two screws in because it's held into place very secure with metal plates that were already on the box itself. I added 2 exhaust fans & 1intake fan. Bought a 24-pin to a 8-pin adapter for the motherboard talk to people that have done this 2 years ago computers are still working fine. Potentially I can run GTX 1660 super and probably much more after I figure out how much GPU I can put on this motherboard without putting in a meltdown going to be a great computer to have around as a third gaming computer this way I can have terabytes and terabytes of games downloaded on different computers thanks for watching.