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42 Chapter2
Troubleshooting
Identifying LCD-Indicated Conditions
Identifying LCD-Indicated Conditions
This workstation uses a 2-line LCD, with up to 16-characters per line, to display
firmware/operating system progress codes. These codes are referred to as chassis codes.
The information displayed on the LCD has the following format:
XXX YYYY: ZZZZZZ (Line 1)
AAAAAAAAAAAAAAAA (Line 2)
Where:
The 3-character operating status can be one of the following:
Selftest Failures
Chassis codes are the key to debugging selftest errors. If a failure is found during selftest,
chassis codes are displayed in the system LCD. To debug a failure:
1. In Table 3-1 starting on the next page, find the chassis code listed on the LCD.
2. In the Boot Console Handler, use the Service Menu’s pim, pdt, and ChassisCodes
commands to get additional information about the failure.
The FRU column in Table 3-1 shows messages printed on the LCD that refer to system
FRUs. All codes are listed in numeric order.
XXX Three-character Operating Status
YYYY Four-digit hex code identifying the code module being executed
ZZZZZZ Six-digit FRU descriptor
AAAAAAAAAAAAAAAA Diagnostic message of up to 16 characters
FLT (fault)
A hardware error has been detected
TST (test)
Hardware being tested
INI (initialize)
Hardware being initialized
SHU (shutdown)
System being shutdown
WRN (warning)
A non-optimal operating condition exists
RUN (running)
The operating system is running