IBM 8646 Hardware Maintenance Manual - Page 99

Symptom-to-FRU index, Beep symptoms

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Symptom-to-FRU index This index supports xSeries 220 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" on page 1. 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 displays 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. Beeps 1-2-3 4 Note: One beep after successfully completing POST indicates the system is functioning properly. Description v One beep v A pause (or break) v Two beeps v A pause (or break) v Three Beeps Four continuous beeps Beep/Symptom 1-1-2 Microprocessor register test failed. 1-1-3 (CMOS write/read test failed) 1-1-4 (BIOS EEPROM checksum failed) 1-2-1 (Programmable Interval Timer failed) 1-2-2 (DMA initialization failed) FRU/Action 1. Processor 2. System board 1. Battery 2. System Board 1. Reflash BIOS 2. System Board 1. System Board 1. System Board © Copyright IBM Corp. 2001 91

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Symptom-to-FRU index
This index supports xSeries 220 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
”
on page 1.
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
displays 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 indicates the system is
functioning properly.
Beeps
Description
1-2-3
v
One beep
v
A pause (or break)
v
Two beeps
v
A pause (or break)
v
Three Beeps
4
Four continuous beeps
Beep/Symptom
FRU/Action
1-1-2
Microprocessor
register test failed.
1.
Processor
2.
System board
1-1-3
(CMOS
write/read test failed)
1.
Battery
2.
System Board
1-1-4
(BIOS EEPROM
checksum failed)
1.
Reflash BIOS
2.
System Board
1-2-1
(Programmable
Interval Timer failed)
1.
System Board
1-2-2
(DMA
initialization failed)
1.
System Board
© Copyright IBM Corp. 2001
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