Symptom-To-Fru Index - Lenovo ThinkPad W700 Hardware Maintenance Manual

Note: If the computer enters the hibernation mode while it is docked to the ThinkPad Advanced Dock or
ThinkPad Advanced Mini Dock, do not undock it before resuming normal operation. If you do undock it and
then try to resume normal operation, you will get an error message, and you will have to restart the system.
To cause the computer to enter hibernation mode, do any of the following:
• Press the Fn+F12 keys.
• If you are using the APM operating system and have set the mode to Power switch mode [Hibernation],
turn off the power switch.
• If you are using the ACPI operating system and have defined one of the following actions as the event that
causes the system to go into hibernation mode, perform that action.
- Closing the lid.
- Pressing the power button.
- Pressing Fn+F4 keys.
Also, the computer goes into hibernation mode automatically in either of the following conditions:
• If a "hibernation time" has been set on the timer, and if the user does not do any operation with the
keyboard, the Trackpoint, the hard disk drive, the parallel connector, or the diskette drive within that time.
• If the timer conditions are satisfied in suspend mode.
• If you are using the APM operating system and have set the mode to Hibernate when battery becomes
low, and the battery charge becomes critically low.
When the power is turned on, the computer returns from hibernation mode and resumes operation. The
hibernation file in the boot record on the hard disk drive is read, and system status is restored from the
hard disk drive.

Symptom-to-FRU index

This section contains following information:
• "Numeric error codes" on page 45
• "Error messages" on page 49
• "Beep symptoms" on page 50
• "No-beep symptoms" on page 50
• "LCD-related symptoms" on page 50
• "Intermittent problems" on page 51
• "Undetermined problems" on page 51
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most
likely cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or
action, in sequence." If replacing a FRU does not solve the problem, put the original part back in the
computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular servicing, what FRUs are likely to need to be
replaced next.
A numeric error is displayed for each error detected in POST or system operation. In the displays, n can
be any number.
If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not
described there, go to "Intermittent problems" on page 51.
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ThinkPad W700, W700ds, W701, and W701ds Hardware Maintenance Manual
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