Lenovo ThinkCentre M71z, Hardware Maintenance Manual

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Error code POST Error Message Description/Action
0135
Fan failure
The system might be overheating.
Press F1 to enter Setup, F2 to resume.
Note: If the problem is caused by the
microprocessor fan, press F10 will
not solve the problem.
0211 Keyboard not found When there is no keyboard detected,
the error message will be displayed.
0164 Memory size decreased
Press F1 to enter Setup, F2 to resume.
1762 Configuration change has occurred This error message is displayed when
a hard disk drive or optical drive
change has been made.
Press F1 to enter Setup, F2 to resume.
1962 No operating system found. Press
any key to repeat boot sequence. This error occurs only after the POST
is completed.
Press any key to repeat boot
sequence.
Miscellaneous error conditions
Message/Symptom FRU/Action
Changing display colors Display/Monitor
Computer will not power-off. See “Hard disk drive boot
error” on page 61.
1. Power Switch
2. System Board
3. Riser card, if installed.
Computer will not RPL from server
1. Ensure that network is in startup sequence as first
device or first device after diskette.
2. Ensure that network adapter is enabled for RPL.
3. Network adapter (Advise network administrator of
new MAC address)
Computer will not perform a Wake On LAN® (if applicable) 1. Check power supply and signal cable connections
to network adapter.
2. Ensure that the operating system settings are set to
enable Wake on LAN.
3. Ensure Wake On LAN feature is enabled in
Setup/Configuration (see “Starting the Setup Utility
program” on page 57)
4. Ensure network administrator is using correct MAC
address.
5. Ensure no interrupt or I/O address conflicts.
6. Network adapter (advise network administrator of
new MAC address)
Dead computer. See “Hard disk drive boot error” on page
61. 1. Power Supply
2. System Board
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ThinkCentre Hardware Maintenance Manual