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WorkPad z50 Mobile Companion 21
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 replacement did not solve the problem, put
the original part back in the WorkPad z50. Do not
replace a nondefective FRU.
This index can also help you determine the next possible
FRUs to be replaced when servicing the WorkPad z50.
Numeric error codes show the errors detected in 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 26.
Note: For IBM devices not supported by diagnostic
codes in WorkPad computers, see the manual
for that device.
Numeric Error Codes
Symptom / Error FRU / Action in Sequence
1XX
101 IR error
101 IR error
Mainboard
2XX
201 checksum error
202 DRAM test error (on
board)
203 DRAM test error
(DRAM module)
204 VRAM test error
201 ROM checksum error
1. Reinstall ROM card
2. ROM card
3. Mainboard
202 DRAM test error (on
board DRAM)
Mainboard
203 DRAM test error (DRAM
module)
1. Reinstall DRAM module
2. DRAM module
3. Mainboard
204 VRAM test error
Mainboard
3XX
301 Keyboard error
301 Keyboard error
1. Reinstall keyboard
2. Keyboard
3. Mainboard
4XX