IBM 220, Hardware Maintenance Manual

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Hardware Maintenance Manual: xSeries 220
1-2-1
(Programmable
Interval Timer failed) 1. System Board
1-2-2
(DMA initialization
failed) 1. System Board
1-2-3
(DMA page register
write/read failed) 1. System Board
1-2-4
(RAM refresh
verification failed) 1. DIMM
2. System Board
1-3-1
(1st 64K RAM test
failed) 1. DIMM
2. System Board
1-3-2
(1st 64K RAM parity
test failed) 1. DIMM
2. Processor
3. System Board
1-4-3
(Interrupt vector
loading test failed) 1. 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
2-2-1
(Interrupt vector
loading 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
info validation failed)
1.
Battery
2. System board
2-3-1
(Screen initialization
failed) 1. Jumper on J28
2. System Board
Beep/Symptom FRU/Action