IBM 8688 manual Diagnostic display error codes, Hardware status error codes, Display report Device

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.

Display report

P:

An

C:

An

I:

An

Device

Processor board

Midplane board

I/O board

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 13. Phase 1 initial VRM determination error codes

Error message/explanation			FRU/action
01	(5v VRM not installed)		I/O board
02	(+5v PowerGood Fault)		1.	I/O board
			2.	Midplane board
03	(+3.3v	VRM not installed)	Midplane board
04	(+3.3v	PowerGood Fault)	Midplane board
05	(+2.5v	VRM not installed)	Memory board 2.5v VRM		(J32)
06	(+2.5v	PowerGood Fault)	Memory board 2.5v VRM		(J32)
07	(+2.5v	VRM not installed)*	1.	Memory board port 1	2.5v VRM (J33)
			2.	Memory board port 2 2.5v VRM (J30)
08	(+2.5v	PowerGood Fault)	1.	Memory board port 1	2.5v VRM (J33)
			2.	Memory board port 2 2.5v VRM (J30)
09	(+1.8v	VRM not installed)	Memory board 1.8v VRM		(J31)

Chapter 6. Symptom-to-FRU index 181