| You can even take out the memory and try to boot, just in case you nudged the memory on the install. A mobo sitting on the carpet with nothing plugged in, just the PSU, should beep on attempted boot.
Video cards are tricky these days, there are a number of different standards, some of which use the same mobo connectors. It is possible you tried to use an incompatible video card, and that fried the mobo over time.
As said before, video card connectors are trick and IMHO bad design, they can short too easy.
It is possible it's your PSU rather than your MOBO, but hard to say without being there. Trouble is sometimes one part will fry another part, and subsiquent replacement parts :-/ |