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Troubleshooting
2-27
Solving Power Problems
Also see "Solving Battery and Battery Gauge Problems" in this chapter.
Table 2-26
Solving Power Problems
Problem Probable Cause Solution(s)
Computer won't turn on and
LEDs aren't lit.
Computer is not connected
to a power source.
Power cords to the external
power source are unplugged.
Insert battery or connect an external power
source.
Ensure that power cords connecting the
computer and the external power source are
plugged in properly.
DC-DC Converter is defective. Replace the DC-DC power board.
Integrated AC Power is defective. Replace the integrated AC Power and restart.
Computer turned off while it
was left unattended and the
power /suspend light is off.
System initiated Hibernation
due to a critical low-battery
condition.
Replace the battery pack with a fully charged
battery pack or connect the computer to an
external power source. Then turn on the
computer.
System initiated Hibernation
after a preset timeout.
Turn on the computer.
NOTE: To change the Hibernation setting in
Windows 95, click the Hibernation tab in
Power properties. Windows NT, run Computer
Setup and select Power Management.
Computer initiated Suspend
automatically or turned off
automatically when it was
docked in expansion base.
The unit temperature
was exceeded.
Computer is in an exceedingly hot
environment. Let the computer cool down.
Make sure the ventilation intake and exhaust
are not obstructed.