Symptom-to-FRU Index
This index supports the Netfinity 3500 - Type 8644.
Notes
1. Check the configuration before you replace a
FRU. Configuration problems can cause false
errors and symptoms.
2. For IBM devices not supported by index, refer to
the manual for that device.
3. Always start with “General Checkout” on page 4.
The Symptom-to-FRU Index lists beeps, errors, symptoms,
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.
XX used in place of the last 2 digits can be any number or
letter.
No Beep Symptoms
No Beep/Symptom
FRU/Action
No Beeps occur after
successfully completing
POST
1. Disconnected
speaker
2. Speaker
3. System Board
Beep Symptoms
Beep symptoms are short tones or a series of short tones
separated by pauses (intervals without sound). See the
following examples.
Beeps
Description
1-2-X
One beep
A pause (or break)
Two beeps
A pause (or break)
Any number of beeps
4
Four beeps
Beep/Symptom
FRU/Action
1-1-2
(CPU register test failure)
1. Optional
Microprocessor
(if installed)
2. Microprocessor
1-1-3
(CMOS write/read test
failure)
1. Real-Time Clock with
Battery
2. System Board
IBM Netfinity 3500 - Type 8644
105
Summary of Contents for Netfinity 3500 Series
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