IBM 8688 manual System-error log entries, Information, Error

Level 2 Light Path LED	FRU/action
VRM LED on (VRM failure)	1.	See the system-error log.
	2.	Microprocessor power module 1-4.
		Note: To see microprocessor error LEDs, remove the processor-board
		assembly from the chassis, and press the LED Activation switch.
	3.	VRM 1-4.
	4.	Midplane-board VRM.
	5.	Processor-board VRM.
	6.	Processor board.
	7.	Midplane board.
Non Redund (nonredundancy lost)	1.	Connect the server to 220v ac if power redundancy is required.
	2.	If the PSx LED is lit on Level 2 Light Path, follow the instructions for that
		LED.
	3.	Replace failing power supply.
Over Spec (power supplies’ rating	1.	Ensure that ac power is applied to both power supplies.
exceeded)
	2.	Power supply.
VRM and memory LEDs on	1.	Replace the failing VRM with lit LED, and re-enable any failed memory.
(memory board level 3 LED on)
	2.	Memory board.
	3.	Midplane board.
Level 2 VRM LED on and board	1.	Processor-board VRM.
LED on
	2.	Remove all PCI adapters from the server.
	3.	PCI-X board VRM.
	4.	PCI-X board.

System-error log entries

The system-error log is similar to an event log and can contain messages of three major types:

Information	Information messages do not require action and record significant
	system-level events. Example: ’System Complex Powered Up’
Warning	Warning messages indicate possible problems but do not require
	immediate action. Example: ’System over recommended ambient
	temperature’
Error	Error messages indicate system errors that may require attention.
	Example: ’Fan 2 not detected’

System-error log messages can originate from two sources.

vSAL/EFI

vService processor

Each entry contains date and time information, which is useful in determining the nature of the occurrence.

Chapter 6. Symptom-to-FRU index 149