My wife's computer has given up. I think the motherboard blew up. I'm thinking of replacing it with a cheap mini-ITX board with an Intel Atom processor on it, since all she needs the computer for is browsing.
I've figured out that her ATX case can fit an mini-ITX board, and I have most of the other components lying around, but my main wonder is: can I power the board from the existing ATX power supply? Are the power cables compatible?