IBM pSeries 630 6C4 Service Manual page 91

Symptom
The system stopped and a code is displayed on the
operator panel.
The rack identify LED does not operate properly.
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 may not have pressed the correct key or you may
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.
If you are sure you pressed the correct key in a timely manner, go to "Step 1020-2" on page 72.
If you are loading diagnostics from a NIM server, check for the following:
v The bootlist on the client may be incorrect.
v Cstate on the NIM server may be incorrect.
v There may be network problems preventing you from connecting to the NIM server.
Verify the settings and the status of the network. If you continue to have problems refer to "Boot Problems/Concerns"
on page 204 and follow the steps for network boot problems.
The system does not respond when the password is
entered.
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 73.
2. Keyboard
a. Replace the keyboard.
b. Replace the CEC backplane, location U0.1-P1. (See notes on page 61).
c. Go to "MAP 1548: Processor Subsystem Problem Isolation" on page 139.
3. Network, go to "MAP 1548: Processor Subsystem Problem Isolation" on page 139.
4. SCSI, go to "MAP 1548: Processor Subsystem Problem Isolation" on page 139.
5. Speaker
a. Replace the operator panel, location U0.1-L1. Refer to "Operator Panel" on page 484.
b. Replace the CEC backplane, location: U0.1-P1. (See notes on page 61).
c. Go to "MAP 1548: Processor Subsystem Problem Isolation" on page 139.
Action
Go to the "Quick Entry MAP" on page 63.
Go to the "Entry MAP" on page 61.
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.
Go to "Step 1020-2" on page 72.
Chapter 3. Maintenance Analysis Procedures (MAPs)
71