Specifications

Troubleshooting Symptom Charts/Power - 4
Power
Note: In the 5300 Series computers, 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. (See Power Information in
Basics chapter.)
3 Try known-good, charged battery.
4 Connect power adapter and restart computer in 3–4 minutes.
5 Replace power supply board (5300 Series only).
6 Replace logic board.