Lenovo ThinkPad R50 Greek - Service and troubleshooting guide for ThinkPad R50 - Page 31

Standby or hibernation problems - service manual

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Solving computer problems Note: For more information, see the manual supplied with the mouse. Standby or hibernation problems Problem: The computer enters standby mode unexpectedly. Solution: 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. Also, check the settings for standby mode, using Battery MaxiMiser. Problem: The computer enters standby mode immediately after Power-on self-test (POST) (the standby indicator light turns on). Solution: Make sure that: v The battery is charged. v The operating temperature is within the acceptable range. Refer to "Specifications" on page 5. If these items are correct, have the computer serviced. Problem: The critical low-battery error message is displayed, and the computer immediately turns off. Solution: The battery power is getting low. Connect the ac adapter to the computer, or replace the battery with a fully charged one. Problem: When you take action to return from standby mode, the computer display remains blank. Solution: Check whether an external monitor was disconnected while the computer was in standby mode. Do not disconnect the external monitor while the computer is in standby mode or hibernation mode. If no external monitor is attached when the computer resumes, the computer display remains blank and output is not displayed. This restriction does not depend on the resolution value. Press Fn+F7 to bring up the computer display. Problem: The computer does not return from standby mode, or the standby indicator stays on and the computer does not work. Chapter 2. Solving computer problems 21

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Note:
For more information, see the manual supplied with the mouse.
Standby or hibernation problems
Problem:
The computer enters standby mode unexpectedly.
Solution:
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. Also, check the settings for standby mode, using
Battery MaxiMiser.
Problem:
The computer enters standby mode immediately after Power-on self-test
(POST) (the standby indicator light turns on).
Solution:
Make sure that:
v
The battery is charged.
v
The operating temperature is within the acceptable range. Refer to
“Specifications” on page 5.
If these items are correct, have the computer serviced.
Problem:
The
critical low-battery error
message is displayed, and the computer
immediately turns off.
Solution:
The battery power is getting low. Connect the ac adapter to the computer,
or replace the battery with a fully charged one.
Problem:
When you take action to return from standby mode, the computer display
remains blank.
Solution:
Check whether an external monitor was disconnected while the computer
was in standby mode. Do not disconnect the external monitor while the
computer is in standby mode or hibernation mode. If no external monitor
is attached when the computer resumes, the computer display remains
blank and output is not displayed. This restriction does not depend on the
resolution value. Press Fn+F7 to bring up the computer display.
Problem:
The computer does not return from standby mode, or the standby
indicator stays on and the computer does not work.
Solving computer problems
Chapter 2. Solving computer problems
21