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2. Select slow boot mode (select disable fast boot) on the system power control menu from the service
processor main menu.
3. Power on the system. Refer to "Starting the system" on page 311.
4. Insert the diagnostic CD-ROM into the CD-ROM drive.
5. When the keyboard indicator is displayed (the word keyboard), press 5 on the system console.
6. Enter a password, if requested.
7. Wait until the diagnostics are loaded or the system appears to stop. If you receive an error code or if
the system stops before diagnostics are loaded, find your symptom in the following table, and then
follow the instructions given in the Action column.
If no fault is identified, continue to the next step.
8. Run the standalone diagnostics on the entire system. Find your symptom in the following table, and
then follow the instructions given in the Action column.
If no fault is identified, call service support for assistance.
Symptom
The system stopped and a code is displayed on the
operator panel.
The system stops with a prompt to enter a password.
The diagnostic operating instructions are displayed.
Symptom: The system login prompt is displayed.
Action: If you are loading the diagnostics from a CD-ROM, you might not have pressed the correct key or you might
not have pressed the key soon enough when you were trying to indicate a service mode IPL of the diagnostic
programs. If this is the case, start again at the beginning of this step.
Note: Perform the system shutdown procedure before turning off the system.
Symptom: The system stopped. A POST indicator is displayed on the system console and an eight-digit error code
is not displayed.
Action: If the POST indicator represents:
1. Memory, go to "MAP 1240: Memory Problem Resolution" on page 52.
2. Network, go to "MAP 1548: Processor Subsystem Problem Isolation" on page 77.
3. SCSI, go to "MAP 1548: Processor Subsystem Problem Isolation" on page 77.
4. Speaker
a. Replace the operator panel, location U0.1-L1. Refer to "Operator panel" on page 362.
b. Replace the CEC backplane, location: U0.1-P1. (See "Central electronics complex (CEC) backplane" on
page 366.)
c. Go to "MAP 1548: Processor Subsystem Problem Isolation" on page 77.
50
NAS Gateway 500 Service Guide
Action
Go to the "Quick Entry MAP" on page 40.
Enter the password. You cannot continue until a correct
password has been entered. When you have entered a
valid password, go to the beginning of this table and wait
for one of the other conditions to occur.
Go to "MAP 0020: Problem Determination Procedure" in
the RS/6000 Eserver pSeries Diagnostic Information for
Multiple Bus Systems.
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