130 Netfinity 3500-M20 – Type 8657 Models 21Y, 22Y, 31Y, 32Y,
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
Beep/Symptom FRU/Action