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Document ID: MCGN-45ZNCE

Netfinity 5500 M20 - Symptom-to-FRU index, beep symptoms and no beep symptoms

Applicable to: World-Wide

Source: Hardware Maintenance Manual

Symptom-to-FRU index
This index supports Netfinity Netfinity 5500 M20 - Type 8662 servers.

Notes
1. Check the configuration before you replace a FRU. Configuration problems can cause false errors and symptoms.
2. The default configuration can be loaded by starting the system and then pressing the reset button four times, waiting 15 seconds between each press. Once the configuration has reset to the default, it must be saved in Setup to be stored in CMOS.
3. For IBM devices not supported by index, refer to the manual for that device.
4. Always start with "General checkout".


The Symptom-to-FRU lists symptoms, errors, and the possible causes. The most likely cause is listed first. Use this Symptom-to-FRU Index to help you decide which FRUs to have available when servicing the computer. The POST BIOS displaying POST error codes and messages on the screen.

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 beep after successfully completing POST indicated the system is functioning properly.




Beeps

Description

1-2-3
  • One beep
  • A pause (or break)
  • Two beeps
  • A pause (or break)
  • 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 ROM 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

2-1-3
(Primary interrupt mask register
failed)

1. System Board
2. Processor Board

2-1-4
(Secondary interrupt mask
register failed)

1. System Board
2. Processor Board

2-2-1
(Interrupt vector loading failed)

1. System Board
2. Processor Board

2-2-2
(Keyboard controller failed)

1. System Board

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 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 0FFFFH)

1. DIMM
2. Processor Board
3. 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. Processor Board

3-2-4
(Failure comparing CMOS
memory size against actual)

1. DIMM
2. Processor Board
3. Battery

3-3-1
(Memory size mismatch
occurred, see "Memory settings")

1. DIMM
2. Processor Board
3. Battery

3-3-2
(Critical SMBUS error occurred)

1. Disconnect the server power cord from outlet, wait 30
seconds and retry.
2. Processor Board
3. Memory DIMMs

3-3-3
(No operational memory in
system)

1. Install or reseat the memory modules, then do a 3 boot
reset (see "Configuration/Setup Utility program")
2. DIMMs
3. Memory Board
4. Processor Board
5. System Board

Two Short Beeps
(Information only, the
configuration has changed)

1. Run Diagnostics
2. Run Configuration/Setup

Three Short Beeps

1. DIMM
2. Processor Board
3. System Board

One Continuous Beep

1. Processor
2. Optional Processor (if installed)
3. Processor Board
4. System Board

Repeating Short Beeps

1. Keyboard
2. System Board

One Long and One Short Beep

1. Video adapter (if present)
2. System Board

One Long and Two Short Beeps

1. Video adapter (if present)
2. System Board

Two Long and Two Short Beeps

1. Video adapter





No beep symptoms

No Beep Symptom

FRU/Action

No beep and the system
operates correctly.

1. Check speaker cables
2. Speaker
3. System Board

No Beeps occur after
successfully completing POST
(The Power-On Status is
disabled.)

1. Run Configuration/Setup, set the Start Options
Power-On Status to enable.
2. Check speaker connection.
3. Speaker
4. System Board

No AC power
(Power supply AC LED is off)

1. Check the power cord
2. Power Supply (If two are installed, swap them to
determine if one is defective.)
3. Power Backplane
4. Hot Swap Power AC Inlet Box

No beep and no video

1. See "Undetermined Problems".

System will not power-up
(Power supply AC LED is on)

1. See "Power Supply LED Errors".

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Document Category

Diagnostics

Date Created

15-03-99

Last Updated

21-05-99

Revision Date

16-03-2000

Brand

IBM PC Server

Product Family

Netfinity 5500 M20

Machine Type

8662

Model

ALL

TypeModel

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