IBM 4500R Hardware Maintenance Manual - Page 120

System Board, Battery, Jumper on J14, Optional Processor if installed, Beep/Symptom, FRU/Action

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Page 120 highlights

Beep/Symptom FRU/Action 1-3-2 (1st 64K RAM 1. DIMM parity test failed) 2. System Board 2-1-1 (Secondary DMA register failed) 1. System Board 2-1-2 (Primary DMA register failed) 1. System Board 2-1-3 (Primary interrupt 1. System Board mask register failed) 2-1-4 (Secondary interrupt 1. System Board mask register failed) 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) 1. Jumper on J14 2. System Board 2-3-2 (Screen memory 1. System Board failed) 2-3-3 (Screen retrace failed) 1. System Board 2-3-4 (Search for video 1. System Board ROM failed) 2-4-1 (Video failed; screen believed operable) 1. System Board 3-1-1 (Timer tick interrupt failed) 1. System Board 3-1-2 (Interval timer channel 2 failed) 1. System Board 3-1-3 (RAM test failed 1. DIMM above address OFFFFH)) 2. System Board 3-1-4 (Time-Of-Day clock failed) 1. Battery 2. System Board 3-2-1 failed) (Serial port 1. System Board 3-2-2 failed) (Parallel port 1. System Board 3-2-3 (Math coprocessor failed) 1. Optional Processor (if installed) 2. Processor 3. System Board 112 Hardware Maintenance Manual: Netfinity 4500R Type 8656

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112
Hardware Maintenance Manual: Netfinity 4500R Type 8656
1-3-2
(1st 64K RAM
parity test failed)
1.
DIMM
2.
System Board
2-1-1
(Secondary DMA
register failed)
1.
System Board
2-1-2
(Primary DMA
register failed)
1.
System Board
2-1-3
(Primary interrupt
mask register failed)
1.
System Board
2-1-4
(Secondary interrupt
mask register failed)
1.
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)
1.
Jumper on J14
2.
System Board
2-3-2
(Screen memory
failed)
1.
System Board
2-3-3
(Screen retrace
failed)
1.
System Board
2-3-4
(Search for video
ROM failed)
1.
System Board
2-4-1
(Video failed;
screen believed operable)
1.
System Board
3-1-1
(Timer tick
interrupt failed)
1.
System Board
3-1-2
(Interval timer
channel 2 failed)
1.
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)
1.
System Board
3-2-2
(Parallel port
failed)
1.
System Board
3-2-3
(Math
coprocessor failed)
1.
Optional Processor (if installed)
2.
Processor
3.
System Board
Beep/Symptom
FRU/Action