One way to verify wether the mobo is fried is to take out all the memory, All boards have a common beep tone when the memory is incorectly seated or faulty. If the thing beeps then your mobo/cpu is probably fine. If it doesnt then who knows -- get a cheap multimeter and check the 12v, 5v, and 3.3v rails on the PSU.
Black = Ground
Red = 5V
Yellow = 12V
Orange = 3.3V
Black = Ground
Red = 5V
Yellow = 12V
Orange = 3.3V