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112 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