I new to the PC-Doctor diagnostic kit, working with a Dell Dimension 5150, system will not power on, have tested the power supply with two different power supply testers, the last being the one included in the PC-Doctor kit, test good. Have replaced the mother board, have replaced the front I/O panel, have unplugged everything except the CPU fan, yet when I apply power the green led on the mother board lights up, but pressing the power button on the front I/O panel does not turn the system on. I'm at a lost of what else to try. The system is old and really not worth much more effort but I'm at a point now its more a matter I don't want to give up on it regardless. Any suggestions would be appreciated.
