Diagnostic Display Error Codes; Hardware Status Error Codes - IBM eServer xSeries 455 Type 8855 Hardware Maintenance Manual And Troubleshooting Manual

Diagnostic display error codes

The diagnostic display is composed of two seven-segment LEDs on the midplane
board. While the server is in standby power mode, the display shows the CMOS
programmable logic device (CPLD) revision level. The revision levels of the CPLD
are individually reported in the display, as shown in the following table.
After the server is turned on, the diagnostic display presents a two-digit code with a
dot. If the dot is at the bottom between the two digits, then the display indicates a
Hardware status error code. If the dot is at the top between the two digits, then the
display indicates a SAL/EFI progress code.
When the server is first turned on, the hardware status error codes are displayed
first, then the SAL/EFI progress codes are presented in the diagnostic display.
When video is enabled, the SAL/EFI progress and status indicators can also be
viewed from the system console. Codes on the diagnostic display track the SAL/EFI
startup progress until startup has been completed.
Under certain conditions, the service processor event log might not contain a
message about a FRU fault. For these faults, the server will usually not startup after
power on or after reset, and a hardware status error code will appear on the
diagnostic display, which will point to the failing FRU.

Hardware status error codes

If the diagnostic display on the midplane board shows a single-digit LED display,
replace the I/O board.
Table 19. Phase 1 initial VRM determination error codes
Error message/explanation
01 (5v VRM not installed)
02 (+5v PowerGood Fault)
03 (+3.3v VRM not installed)
04 (+3.3v PowerGood Fault)
05 (+2.5v VRM not installed)
06 (+2.5v PowerGood Fault)
07 (+2.5v VRM not installed)*
08 (+2.5v PowerGood Fault)
09 (+1.8v VRM not installed)
0a (+1.8v PowerGood Fault)
0b (+1.8v VRM not installed)
Display report
P:
An
C:
An
I:
An
Device
Processor board
Midplane board
I/O board
FRU/action
I/O board
1. I/O board
2. Midplane board
Midplane board
Midplane board
Memory board assembly
Memory board assembly
Memory board assembly
Memory board assembly
Memory board assembly
Memory board assembly
Processor board 1.8v VRM (J133)
Chapter 6. Symptom-to-FRU index
201