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Symptom / Error FRU / Action in Sequence
601, 6XX
(601: Diskette drive or
controller error.)
1. Go to “Diskette Drive
Test” on page 348.
2. Diskette drive
assembly
3. Diskette
4. System board
602
(Diskette read error.)
1. Go to “Diskette Drive
Test” on page 348.
2. Diskette
3. Diskette drive
assembly
604
(Unacceptable ID was read
from the diskette drive.)
1. Go to “Diskette Drive
Test” on page 348.
2. Diskette drive
assembly
3. System board
11XX
1101: Serial_A test failure.
1. Serial device
2. Communication cable
3. System board
17XX
1701: Hard disk
controller failure.
1780, 1790: Hard disk
0 error.
1781, 1791: Hard disk
1 error.
1. Hard disk drive
2. System board
24XX
(2401: System board video
error.)
1. System board
2. Video card
808X
8081: PCMCIA
presence test failure.
(PCMCIA revision
number also checked.)
8082: PCMCIA register
test failure.
1. PCMCIA slot
assembly
2. PCMCIA device
3. System board
860X
(Pointing device error when
TrackPoint III is disabled.)
8601: System bus
error.–8042 mouse
interface.
8602: External mouse
error.
8603: System bus
error or mouse error.
1. External mouse
2. External keyboard
3. System board
362 IBM Mobile Systems - ThinkPad HMM Volume 3