IBM IntelliStation Z Pro 6223, Hardware Maintenance Manual And Troubleshooting Manual, Page: 93 / 180

Chapter 6. Symptom-to-FRU index
This index supports IntelliStation Z Pro Types 6223 and 6227 computers.
Notes:
1. Check the configuration before you replace a CRU or FRU. Configuration
problems can cause false errors and symptoms.
2. For IBM devices that are not supported by this index, see the documentation for
that device.
3. Always start with “General checkout” on page 13.
The symptom-to-FRU index 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 first column of the two-column tables in this index lists error codes or
messages, and the last column lists one or more suggested actions or FRUs to
replace. Take the action (or replace the FRU) that is suggested first in the list, and
then try the computer again to see whether the problem has been corrected.
Note: Try reseating a suspected component or reconnecting a cable before
replacing the component.
The POST BIOS code 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 examples in the following table.
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
One beep after successfully completing POST indicates the computer is functioning
properly.
Note: See “System replaceable units” on page 117 to determine which components should be replaced by a field
service technician.
Beep/symptom FRU/action
1-1-2
(Microprocessor register test failed.)
v Microprocessor
1-1-3
(CMOS write/read test failed.)
1. Battery
2. System board
1-1-4
(BIOS EEPROM checksum failed.)
1. Recover BIOS
2. System board
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