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Chapter 5. Troubleshooting
Keyboard problems
A number appears when
you enter a letter.
• The numeric lock function is on. To disable it, press
Fn + Insert.
Standby or hibernation problems
The computer enters
standby mode unexpect-
edly.
•
If the processor overheats, the computer automatically
enters standby mode to allow the computer to cool
and to protect the processor and other internal
components. Check the settings for standby mode.
The computer enters
standby mode immediately
after Power-on self-test
(POST).
• Make sure that:
- The battery is charged.
- The operating temperature is within the acceptable
range. See “Appendix B. Use, and care
Information” on page 64.
Note: If the battery is charged and the temperature is within range, have the computer
serviced.
The critical low-battery error
message appears, and the
computer immediately turns
off.
• The battery power is getting low. Connect the AC
adapter to the computer, or replace the battery with
a fully charged one.