IBM 847671U Hardware Maintenance Manual - Page 13

Notes, Is The System Part Of A Cluster

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Notes 1. For systems that are part of a shared DASD cluster, run one test at a time in looped mode. Do not run all tests in looped mode, as this could enable the DASD diagnostic tests. 2. Before replacing any FRUs, ensure the latest level of BIOS is installed on the system. A down-level BIOS might cause false errors and unnecessary replacement of the system board. 3. If multiple error codes are displayed, diagnose the first error code displayed. 4. If the server hangs with a POST error, go to "Symptom-to-FRU index" on page 160. 5. If the server hangs and no error is displayed, go to "Undetermined problems" on page 198. 6. If an installed device is not recognized by the diagnostics program, that device might be defective. 7. If a blank screen, unreadable screen, or other unusual response occurs, go to "Symptom-to-FRU index" on page 160. 8. For power supply problems, see "Power supply" on page 45. 001 IS THE SYSTEM PART OF A CLUSTER? Yes No 002 Go to Step 004. 003 Schedule maintenance with the customer. Shut down all systems related to the cluster. Run storage test. 004 - Power-off the server and all external devices. - Check all cables and power cords. - Set all display controls to the middle position. - Start the diagnostic programs, if necessary see "Running the diagnostic test programs" on page 11. - Check for the following responses: 1. One or two beeps (depending on the diagnostics version level). 2. Readable instructions or the Main Menu. (Step 004 continues) IBM Netfinity 3000 - Type 8476 5

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Notes
1.
For systems that are part of a shared DASD
cluster, run one test at a time in looped mode.
Do not run all tests in looped mode, as this could
enable the DASD diagnostic tests.
2.
Before replacing any FRUs, ensure the latest
level of BIOS is installed on the system.
A
down-level BIOS might cause false errors and
unnecessary replacement of the system board.
3.
If multiple error codes are displayed, diagnose
the first error code displayed.
4.
If the server hangs with a POST error,
go to
“Symptom-to-FRU index” on page
160.
5.
If the server hangs and no error is displayed,
go
to “Undetermined problems” on page
198.
6.
If an installed device is not recognized by the
diagnostics program, that device might be
defective.
7.
If a blank screen, unreadable screen, or other
unusual response occurs, go to
“Symptom-to-FRU index” on page
160.
8.
For power supply problems, see “Power supply”
on page
45.
001
IS THE SYSTEM PART OF A CLUSTER?
Yes
No
002
Go to Step 004.
003
Schedule maintenance with the customer.
Shut down all
systems related to the cluster.
Run storage test.
004
–
Power-off the server and all external devices.
–
Check all cables and power cords.
–
Set all display controls to the middle position.
–
Start the diagnostic programs, if necessary see “Running
the diagnostic test programs” on page
11.
–
Check for the following responses:
1.
One or two beeps (depending on the diagnostics
version level).
2.
Readable instructions or the Main Menu.
(Step
004
continues)
IBM Netfinity 3000 - Type 8476
5