IBM 866251Y - Netfinity 5500 M20, Hardware Maintenance Manual

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Beep symptoms
Beep symptoms are short tones or a series of short tones
separated by pauses (intervals without sound). See the
following examples.
Note
One beeps after successfully completing POST
indicated the system is functioning properly.
Beeps Description
1-2-3
Ÿ
One beep
Ÿ
A pause (or break)
Ÿ
Two beeps
Ÿ
A pause (or break)
Ÿ
Three beeps
4 Four continuous beeps
Beep/Symptom FRU/Action
1-1-2
(Processor register test
failed) 1. Optional Processor
(if installed)
2. Processor
1-1-3
(CMOS write/read test
failed) 1. Battery
2. System Board
1-1-4
(BIOS EEPROM checksum
failed) 1. System Board
1-2-1
(Programmable Interval
Timer failed) 1. System Board
2. Processor Board
1-2-2
(DMA initialization failed) 1. System Board
2. Processor Board
1-2-3
(DMA page register
write/read failed) 1. System Board
2. Processor Board
1-2-4
RAM refresh verification
failed 1. System Board
2. Processor Board
1-3-1
(1st 64K RAM test failed) 1. DIMM
2. Processor Board
1-3-2
(1st 64K RAM parity test
failed) 1. DIMM
2. Processor Board
3. System Board
2-1-1
(Secondary DMA register
failed) 1. System Board
2. Processor Board
2-1-2
(Primary DMA register
failed) 1. System Board
2. Processor Board
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