I have a GA-G31M-ES2L.
Today morning I removed a cooler master heatsink which was broken for a Intel stock HSF which came with my e8400, the processor installed in the motherboard.
My problem is that after that when I tried to start the computer, the computer doesn't turn on, no beep, no fan , no lights nothing at all.
I removed all the components, reseated the motherboard, tried to start it with just memory, processor, hsf, it still won't turn on.
I started the power supply manually by shorting the pins, and the power supply works and can turn on a hard-drive even.
I have checked the wires, the main power cable and the 12V ATX cable are all in place.
What can I do now? Is it my motherboard? How can I be sure that my motherboard is faulty without getting a new one?