I have an A22M that cold starts successfully on an intermittent
basis. The power supply seems good and also the battery. After a
successful boot the machines functions fine for days. I can do a
restart OK while running. In an unsuccessful boot the green lights
all come on for about 2 seconds and turn off and the display doesn't
ever light up. I hear what sounds like the HD spinning up and the
fans coming on. After about 10 seconds all fan and HD sounds cease
and the rightmost lite stays on. The battery green light stays on
reflecting a full charge. I can then successfully turn power off.