I bought a new cabinet for my pc and disassembled all the parts to install it in the new cabinet. Previously my motherboard worked fine, there was no issue. But when installed all the parts into the new cabinet and turned on the pc it showed no display. I checked everything from psu to ram, everything was fine. I even checked the cpu pins, they were all intact and found no bends. I dont know how the problem occured. Any help would be appreciated, thanks. I use an old mothetboard of Gigabyte.