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POST Error Code FRU/Action
111
I/O channel parity error
1. Reseat adapters
2. Any adapter
3. Riser card
4. System Board
114
Adapter ROM error
1. Adapter Memory
2. System Board
3. Riser card
129
Internal cache test error
1. Processor
2. L2 Cache Memory
3. System Board
135 Fan failure
1. Fan
2. System board
151
System board failure
System Board
161
Bad CMOS battery
1. Run Setup
2. CMOS Backup Battery. Go to “Replacing
the battery (all machine types)” on page
56
3. System Board
162
Configuration mismatch
1. Run Setup and verify Configuration
2. Had a device been added, removed,
changed location? If not, suspect that
device.
3. Power-on external devices first, then
power-on computer
4. CMOS Backup Battery. Go to “Replacing
the battery (all machine types)” on page
56
5. System Board
163
Date and Time Incorrect
1. Time and Date Set
2. CMOS Backup Battery. Go to “Replacing
the battery (all machine types)” on page
56
3. System Board
164
Memory Size Error
1. Run Setup. Check System Summary
menu for memory size change. (See
Chapter 5, “IBM Setup Utility
program,” on page 19.)
2. Run the Extended Memory Diagnostic
tests
166
Boot Block Check Sum Error
1. Run Flash Recovery using Boot Block.
See “Recovering from a POST/BIOS
update failure” on page 114.
2. System Board
Chapter 7. Symptom-to-FRU Index 93