New processor - no display, power button unresponsive, no USB power

Jed_4_

Commendable
Oct 2, 2016
2
0
1,510
Hi

I have just bought a new processor and cooler for my computer.

It all seems to fit fine but when I turn on the computer, the fans spin, the LEDs glow but there's no display from both the graphics card and motherboard slot, USBs aren't working, power button becomes unresponsive.

To try and fix this issue, I bought a bigger power supply but it didnt change a thing. I also tried reinstalling my old processor (so it would be back to normal) but that didn't seem to work either.. please help :(

Specs:
AMD fx 8350
Low end, 1GB graphics card
Corsair CX600 (600W) power supply
8GB corsair RAM
Gigabyte GA-78LMT-USB3 motherboard