IBM 8649 Hardware Maintenance Manual - Page 112

Beep/symptom, FRU/action

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Page 112 highlights

Note: See "System replaceable units" on page 122 to determine which components should be replaced by a field service technician. Beep/symptom FRU/action 1-2-1 System board (Programmable Interval Timer failed.) 1-2-2 (DMA page register test failed.) System board 1-2-3 (DMA page register write/read failed.) System board 1-3-1 (First 64K RAM test failed.) 1. DIMM 2. Memory adapter 2-1-1 (Secondary DMA register failed.) System board 2-1-2 (Primary DMA register failed.) System board 2-1-3 (Primary interrupt mask register failed.) System board 2-1-4 (Secondary interrupt mask register failed) System board 2-2-2 (Keyboard controller failed.) 1. Keyboard 2. System board 2-2-3 1. Battery (CMOS power failure and checksum check failed.) 2. 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. Optional microprocessor 2. Microprocessor 3. System board 102 IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

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Note:
See
“System
replaceable
units”
on
page
122
to
determine
which
components
should
be
replaced
by
a
field
service
technician.
Beep/symptom
FRU/action
1-2-1
(Programmable
Interval
Timer
failed.)
System
board
1-2-2
(DMA
page
register
test
failed.)
System
board
1-2-3
(DMA
page
register
write/read
failed.)
System
board
1-3-1
(First
64K
RAM
test
failed.)
1.
DIMM
2.
Memory
adapter
2-1-1
(Secondary
DMA
register
failed.)
System
board
2-1-2
(Primary
DMA
register
failed.)
System
board
2-1-3
(Primary
interrupt
mask
register
failed.)
System
board
2-1-4
(Secondary
interrupt
mask
register
failed)
System
board
2-2-2
(Keyboard
controller
failed.)
1.
Keyboard
2.
System
board
2-2-3
(CMOS
power
failure
and
checksum
check
failed.)
1.
Battery
2.
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.
Optional
microprocessor
2.
Microprocessor
3.
System
board
102
IBM
xSeries
225
Types
8649:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide