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Troubleshooting charts
Standby or hibernation problems
Problem Action
The computer enters
standby mode automat-
ically.
The computer enters standby mode automatically when the processor temperature
reaches a certain level. This is not a defect.
Performance degrade
when the computer gets
hot during use.
The processor speed might decrease under the following conditions:
Use in a hot environment.
High-powered processing that requires high-power consumption.
This is not a defect.
The computer enters
standby mode imme-
diately after POST (the
standby indicator is on).
Make sure that:
The battery pack is charged.
The AC Adapter is connected to the computer.
The operating temperature is within the acceptable range. Refer to
Appendix A, “Features and specifications” on page 123.
If these items are correct, have the computer serviced.
The computer turns on
and immediately turns
off.
The battery pack power is getting low. Connect the AC Adapter to the computer,
or replace the battery pack with a fully charged one.
The computer does not
return from standby
mode, or the standby
lamp stays on and the
computer does not work.
The computer automatically enters standby or hibernation mode when the battery
power is exhausted. Do one of the following:
1. Connect the AC Adapter to the computer.
2. Replace the battery pack with a fully charged one; then press Fn.
The LCD is blank after
resuming.
Check if an external monitor was connected before the computer entered standby
mode. Do not disconnect the external monitor while the computer is in
hibernation mode. If no external monitor is attached when the computer
resumes, the LCD remains blank and output is not displayed. This
restriction does not depend on the resolution value.
Your computer does not
enter standby or
hibernation mode.
Check if the standby or hibernation options are set in the Power Management
Properties window (Fn+F2).
Make sure the hibernation file is created. (See “Sleep Manager” on page 31.)
Note: If a communication program is running, you cannot enter hibernation
mode. To enter hibernation mode, stop the communication program, and
then remove the PC Card or turn off power to the PC Card slot using the
Control Panel.
Solving computer problems 95