Filter
Top Products
Symptom-to-FRU Index
The Symptom-to-FRU Index lists the symptoms and errors
and the possible causes. The most likely cause is listed
first.
Note: Perform the FRU replacement or actions in the
sequence shown in the “FRU/Action” columns. If a FRU
did not solve the problem, put the original part back in the
computer. Do not replace a non-defective FRU.
This index can also be used to help you decide which
FRUs to have available when servicing a computer.
Numeric error codes show the errors detected in POST or
system operation. In the following error codes, X can be
any number.
If no codes are available, use narrative symptoms.
If the symptom is not listed, go to “Undetermined
Problems” on page 419.
Note: For IBM devices not supported by diagnostic codes
of the ThinkPad computers, see the manual for that
device.
Numeric Error Codes
Symptom/Error FRU/Action
10X 1. System Board
110 1. Go to “Memory
Checkout” on
page 393.
2. IC DRAM Card or
DIMM Card
3. System Board
111 1. Go to “Memory
Checkout” on
page 393.
2. Expansion Unit/Port
Replicator
3. System Board
158
(HDP was not set even
though the supervisor
password is set.)
1. Set a HDP.
159
(HDP is not set the same as
the supervisor password.)
1. Set a correct HDP.
161 1. Go to “Checking the
Backup Battery” on
page 403.
2. Backup Battery
3. System Board
163
(Time and Date was not
set.)
1. Set Time and Date.
2. System Board
408 IBM Mobile Systems HMM