IBM RS/6000 7024 E Series, Service Manual

Page: 40 / 162

5. Enter any requested passwords.
6. Follow displayed instructions until diagnostic operating instructions are displayed
or the system appears to stop.
7. Find your symptom in the following table; then follow the instructions given in the
Action column.
Symptom Action
The disk activity indicator LED is blinking
rapidly. The flash EPROM data is corrupted. The
recovery procedure for the flash EPROM should
be executed.
The system stops with a prompt to enter a
password. Enter the password. You will not be allowed to
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.
The diagnostic operating instructions are
displayed. Go to MAP 0020 in the
IBM RS/6000 Diagnostic
Information for Multiple Bus Systems.
The power good LED does not come on or does
not stay on. Go to “MAP 1520: Power” on page 2-12.
The system stops with an eight-digit error
code(s) displayed on the console. Record the error code(s), then go to “Step
1020-3” on page 2-10.
The system login prompt is displayed. You may not have pressed the correct key or
you may not have pressed the key soon enough
when you were to indicate a Service Mode IPL
of the diagnostic programs. If this was the case
start over at the beginning of this Step.
Note: Perform the systems 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 2-10.
The system unit produces one long beep
immediately followed by a short beep. Record error code M0GA0000, then go to “Step
1020-3” on page 2-10.
A continuous beep is heard from the system
unit. Record error code M0SPK000, then go to “Step
1020-3” on page 2-10.
A short and long beep are heard. However,
nothing is displayed. 1. If using a graphic display, go to the Problem
Determination Procedures for the display.
2. If you do not find a problem then replace the
display adapter.
3. Go to “MAP 1540: Minimum Configuration”
on page 2-18.
The system appears to be stopped, the disk
activity indicator LED is OFF and a beep was
NOT heard from the system unit. Record error code M0CPU000, then go to “Step
1020-3” on page 2-10.
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Service Guide