
If the POST detects a problem, an error message appears on the screen. A single problem can cause several
error messages to appear. When you correct the cause of the first error message, the other error messages
probably will not be displayed next time you turn on the system.
Error code
POST error message
Description/Action
0135
Fan failure
The system might be overheating.
Press F10 to exit.
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 F10 to exit.
1762
Configuration change has occurred
This error message is displayed when
a hard disk drive or optical drive
change has been made.
Press F10 to exit.
1820
More than one external fingerprint
reader are attached. Power off and
remove all but the reader that you set
up within your main operating system.
If more than one external fingerprint
reader are connected to a computer,
this error message will be displayed.
Remove all of the fingerprint
keyboards except the one compatible
with the fingerprint application on
your computer.
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
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)
84
ThinkCentre M900z Hardware Maintenance Manual
Summary of Contents for ThinkCentre M900z 10F2
Page 1: ...ThinkCentre M900z Hardware Maintenance Manual Machine Types 10F2 10F3 10F4 and 10F5 ...
Page 6: ...iv ThinkCentre M900z Hardware Maintenance Manual ...
Page 8: ...vi ThinkCentre M900z Hardware Maintenance Manual ...
Page 16: ...8 ThinkCentre M900z Hardware Maintenance Manual ...
Page 20: ...12 ThinkCentre M900z Hardware Maintenance Manual ...
Page 21: ...1 2 Chapter 1 Read this first Important safety information 13 ...
Page 22: ...1 2 14 ThinkCentre M900z Hardware Maintenance Manual ...
Page 27: ...1 2 Chapter 1 Read this first Important safety information 19 ...
Page 28: ...1 2 20 ThinkCentre M900z Hardware Maintenance Manual ...
Page 31: ...Chapter 1 Read this first Important safety information 23 ...
Page 40: ...31 32 ThinkCentre M900z Hardware Maintenance Manual ...
Page 50: ...42 ThinkCentre M900z Hardware Maintenance Manual ...
Page 66: ...58 ThinkCentre M900z Hardware Maintenance Manual ...
Page 128: ...120 ThinkCentre M900z Hardware Maintenance Manual ...
Page 136: ...128 ThinkCentre M900z Hardware Maintenance Manual ...
Page 138: ...China RoHS 130 ThinkCentre M900z Hardware Maintenance Manual ...
Page 139: ...Appendix D China Energy Label Copyright Lenovo 2015 131 ...
Page 140: ...132 ThinkCentre M900z Hardware Maintenance Manual ...
Page 142: ...134 ThinkCentre M900z Hardware Maintenance Manual ...
Page 145: ......
Page 146: ......