Troubleshooting Symptom Charts/Power - 4
Power
Note:
You will hear only the click of the power-on button when
you attempt to start up a computer that lacks sufficient power to
start.
Computer won’t
power up
1 If sleep LED is continually on, backup battery power has been
interrupted. Restart computer by holding down reset actuator
10-20 seconds. If computer doesn’t restart, repeat 3–4
times.
2 Try known-good power adapter.
3 Try known-good, charged battery. (See Battery Verification
in Additional Procedures.)
4 Connect power adapter and restart computer in 3–4 minutes.
5 Replace logic board.