IBM 8840 Hardware Maintenance Manual - Page 85

Beep/symptom, FRU/action, System, board, Battery, Microprocessor

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Page 85 highlights

Note: See "System" on page 108 to determine which components a field service technician should replace. Beep/symptom FRU/action 2-1-4 (Secondary interrupt mask register failed) System board 2-2-1 (Interrupt vector loading failed) System board 2-2-2 (Keyboard controller failed) 1. System board 2. Keyboard 2-2-3 1. Battery (CMOS power failure and checksum checks failed) 2. System board 2-2-4 (CMOS configuration information validation failed) 1. Battery 2. System board 2-3-1 (Screen initialization failed) System board 2-3-2 (Screen memory failed) System board 2-3-3 (Screen retrace failed) System board 2-3-4 (Search for video ROM failed) System board 2-4-1 (Video failed; screen believed operable) System board 3-1-1 (Timer tick interrupt failed) System board 3-1-2 (Interval timer channel 2 failed) System board 3-1-3 (RAM test failed above address OFFFFH)) 1. DIMM 2. System board 3-1-4 (Time-Of-Day clock failed) 1. Battery 2. System board 3-2-1 (Serial port failed) System board 3-2-2 (Parallel port failed) System board 3-2-3 (Math coprocessor test failed) 1. Microprocessor 2. System board 3-2-3 (Failure comparing CMOS memory size against actual) 1. DIMM 2. Battery 3-3-1 (Memory size mismatch occurred.) 1. DIMM 2. Battery Chapter 6. Symptom-to-FRU index 75

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Note:
See
“System”
on
page
108
to
determine
which
components
a
field
service
technician
should
replace.
Beep/symptom
FRU/action
2-1-4
(Secondary
interrupt
mask
register
failed)
System
board
2-2-1
(Interrupt
vector
loading
failed)
System
board
2-2-2
(Keyboard
controller
failed)
1.
System
board
2.
Keyboard
2-2-3
(CMOS
power
failure
and
checksum
checks
failed)
1.
Battery
2.
System
board
2-2-4
(CMOS
configuration
information
validation
failed)
1.
Battery
2.
System
board
2-3-1
(Screen
initialization
failed)
System
board
2-3-2
(Screen
memory
failed)
System
board
2-3-3
(Screen
retrace
failed)
System
board
2-3-4
(Search
for
video
ROM
failed)
System
board
2-4-1
(Video
failed;
screen
believed
operable)
System
board
3-1-1
(Timer
tick
interrupt
failed)
System
board
3-1-2
(Interval
timer
channel
2
failed)
System
board
3-1-3
(RAM
test
failed
above
address
OFFFFH))
1.
DIMM
2.
System
board
3-1-4
(Time-Of-Day
clock
failed)
1.
Battery
2.
System
board
3-2-1
(Serial
port
failed)
System
board
3-2-2
(Parallel
port
failed)
System
board
3-2-3
(Math
coprocessor
test
failed)
1.
Microprocessor
2.
System
board
3-2-3
(Failure
comparing
CMOS
memory
size
against
actual)
1.
DIMM
2.
Battery
3-3-1
(Memory
size
mismatch
occurred.)
1.
DIMM
2.
Battery
Chapter
6.
Symptom-to-FRU
index
75