IBM Type 7977 manual Service

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the Problem Determination and Service Guide on the IBM System x Documentation CD to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Lit light path
diagnostics LED with
the system-error or
information LED also
lit	Description	Action
SERVICE	There is a fault in the Remote	1. Reseat the Remote Supervisor Adapter II SlimLine.
PROCESSOR BUS	Supervisor Adapter II SlimLine.
		2. Update the firmware for the Remote Supervisor
			Adapter II SlimLine (see the Problem
			Determination and Service Guide on the IBM
			System x Documentation CD).
		3. Replace the Remote Supervisor Adapter II
			SlimLine.
MEMORY	Memory failure.	1. Remove the DIMM that has the lit error LED; then,
	Note: The error LED on the DIMM
			press the light path diagnostics button on the
	is also lit.
			DIMM to identify the failed DIMM.
		2.	Reseat the DIMM.
		3. Replace the following components one at a time,
			in the order shown, restarting the server each time:
			a. DIMM
			b. (Trained service technician only) System board
DASD/RAID	A hard disk drive, integrated SAS	1. Reinstall the removed drive.
	controller, or integrated RAID error
		2. Reseat the following components:
	has occurred.
			a. Failing hard disk drive
	Notes:
			b. SAS hard disk drive backplane
	1. The error LED on the failing
			c. SAS signal and power cables
	hard disk drive is also lit.
			d. ServeRAID-8k adapter
	2. Check the BMC event log for a
		3.	Replace the following components one at a time,
	ServeRAID-8k or RAID error.
			in the order shown, restarting the server each time:
			a. Failing hard disk drive
			b. SAS hard disk drive backplane
			c. SAS signal and power cables
			d. ServeRAID-8k adapter
			e. (Trained service technician only) System board
FAN	A fan has failed or has been	1. Reinstall the removed fan.
	removed.
		2.	Reseat the fan.
	Note: A failing fan can also cause
		3.	If an individual fan LED is lit, replace the fan.
	the TEMP LED to be lit.
		4. (Trained service technician only) Replace the
			system board.

Chapter 5. Solving problems 93