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FRU Codes: If an error is detected by the diagnostic
tests, a four-digit FRU code is displayed. The FRU code
indicates two suspected FRUs. Replace the FRU that is
indicated by the
two leftmost digits
first, then replace the
FRU that indicated
two rightmost digits.
No FRU is
assigned to code 00. If only one FRU is suspected, the
other FRU code is filled with zeros. See the reference
page before replacing the FRU.
If the problem still remains after replacement of the FRUs,
go to “Undetermined Problems” on page 573.
FRU Code FRU
10 1. System Board
30 Reserved
32 1. External Keyboard
2. Main Card
3. Riser Card
33 1. External Mouse
2. Main Card
3. Riser Card
45 External CRT
51 1. Reseat the Diskette Drive (FDD-2)
2. Diskette Drive (FDD-2)
3. Main Card
4. Riser Card
61 1. Reseat the Hard Disk Drive in IBM
ThinkPad Dock I (HDD-3)
2. Hard Disk Drive in IBM ThinkPad Dock I
(HDD-3)
3. Main Card
70 PCMCIA-2 (Replicator)
90 CD-ROM Drive
91 CD-ROM Drive in SelectaDock
570 IBM Mobile Systems - ThinkPad HMM Volume 3