Netfinity 5500 M20 - Information panel system error LED

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Document ID: MCGN-45ZQ56

Netfinity 5500 M20 - Information panel system error LED

Applicable to: World-Wide

Source: Hardware Maintenance Manual

Information panel system error LED
The system error LED is turned on when an error is detected. If the system error LED is on, remove the cover and check the diagnostic panel LEDs. The following is a complete list of diagnostic panel LEDs followed by the FRU/Action for replacing the problem.

Important
If a diagnostic panel LED is on and the information LED panel system error LED is off, there is probably an LED problem. Run LED diagnostics.

Notes
1. To locate the LEDs on the processor board see "Processor board component locations".
2. Check the System Error Log for additional information before replacing a FRU.
3. The memory board DIMM error LEDs, processor error LEDs, and VRM error LEDs turn off when the system is powered down.

Diagnostic Panel LED

FRU/Action

All LEDs off
(Check System Error Log for error condition, then clear System Error Log when the problem is found.)

1. System Error Log is 75% full; clear the log
2. PFA alert; power the system off then on
3. Run Information Panel diagnostics

Only CPU LED on
(The LED next to the failing CPU should be on.)

1. Processor 1, 2, 3, or 4
2. Processor Board

CPU LED and VRM LED on
(The LED next to the failing VRM should be on.)

1. Voltage regulator module indicated by the VRM LED on the processor board that is turned on
2. Processor indicated by the Processor LED.
3. Processor Board

CPU Wrong Slot LED on
(CPU and terminator card installation order is wrong.)

1. CPU and terminator card installation order
See "Microprocessor installation".
2. Processor(s)
3. Processor Board

DASD 1 LED on
(The LED located next to the drive bay that the failing drive is installed in will be turned on.)

1. Failing drive.
2. Be sure the fans are operating correctly and the air flow is good.
3. SCSI Backplane

DASD 2 LED on
(The LED located next to the drive bay that the failing drive is installed in will be turned on.)

1. Failing drive.
2. Be sure the fans are operating correctly and the air flow is good.
3. SCSI Backplane

FAN 1 LED on

1. Fan 1
2. Fan Cable
3. System Board

FAN 2 LED on

1. Fan 2
2. Fan Cable
3. System Board

FAN 3 LED on

1. Fan 3
2. Fan Cable
3. System Board

FAN 4 LED on

1. Fan 4
2. Fan Cable
3. Processor Board

MEM LED on
(The LED next to the failing DIMM is on.)

1. Failing DIMM in slot J1, J2, J3, J4, J5, J6, J7, or J8).
2. Memory Board
3. Processor Board

NMI LED on

1. Reboot the system.
2. Check the System Error Log.

PCI 1 LED on

1. PCI Card in slot 5.
See "System board component locations".
2. System Board
3. Processor Board

PCI 2 LED on

1. Card in slot 1 or 4
See "System board component locations".
2. System Board
3. Processor Board

PS1 LED on

1. Check the DC Good LED on power supply 1. If off, replace power supply 1.
2. Power Backplane

PS2 LED on

1. Check the DC Good LED on power supply 2. If off, replace power supply 2.
2. Power Backplane

SMI LED on

1. Reboot the system.

TEMP LED on

1. Be sure the fans are operating correctly and the air flow is good.
2. Check processor 1 through 4 LEDs. If the CPU LED on the diagnostics panel is also on, one of the microprocessors has caused the error.
3. Be sure the power supply fans are operating correctly and the air flow is good.
4. Processor Board
5. System Board

VRM LED on
(Check the VRM (voltage regulator module) LEDs on the processor board.)

1. Voltage regulator module indicated by the VRM LED on the processor board that is turned on
2. Processor for the VRM LED that is turned on.
See "Microprocessor installation".
3. Processor Board

Search Keywords

Document Category

Diagnostics

Date Created

15-03-99

Last Updated

16-03-99

Revision Date

26-05-2000

Brand

IBM PC Server

Product Family

Netfinity 5500 M20

Machine Type

8662

Model

All

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes

Diagnostic Panel LED	FRU/Action
All LEDs off (Check System Error Log for error condition, then clear System Error Log when the problem is found.)	1. System Error Log is 75% full; clear the log 2. PFA alert; power the system off then on 3. Run Information Panel diagnostics
Only CPU LED on (The LED next to the failing CPU should be on.)	1. Processor 1, 2, 3, or 4 2. Processor Board
CPU LED and VRM LED on (The LED next to the failing VRM should be on.)	1. Voltage regulator module indicated by the VRM LED on the processor board that is turned on 2. Processor indicated by the Processor LED. 3. Processor Board
CPU Wrong Slot LED on (CPU and terminator card installation order is wrong.)	1. CPU and terminator card installation order See "Microprocessor installation". 2. Processor(s) 3. Processor Board
DASD 1 LED on (The LED located next to the drive bay that the failing drive is installed in will be turned on.)	1. Failing drive. 2. Be sure the fans are operating correctly and the air flow is good. 3. SCSI Backplane
DASD 2 LED on (The LED located next to the drive bay that the failing drive is installed in will be turned on.)	1. Failing drive. 2. Be sure the fans are operating correctly and the air flow is good. 3. SCSI Backplane
FAN 1 LED on	1. Fan 1 2. Fan Cable 3. System Board
FAN 2 LED on	1. Fan 2 2. Fan Cable 3. System Board
FAN 3 LED on	1. Fan 3 2. Fan Cable 3. System Board
FAN 4 LED on	1. Fan 4 2. Fan Cable 3. Processor Board
MEM LED on (The LED next to the failing DIMM is on.)	1. Failing DIMM in slot J1, J2, J3, J4, J5, J6, J7, or J8). 2. Memory Board 3. Processor Board
NMI LED on	1. Reboot the system. 2. Check the System Error Log.
PCI 1 LED on	1. PCI Card in slot 5. See "System board component locations". 2. System Board 3. Processor Board
PCI 2 LED on	1. Card in slot 1 or 4 See "System board component locations". 2. System Board 3. Processor Board
PS1 LED on	1. Check the DC Good LED on power supply 1. If off, replace power supply 1. 2. Power Backplane
PS2 LED on	1. Check the DC Good LED on power supply 2. If off, replace power supply 2. 2. Power Backplane
SMI LED on	1. Reboot the system.
TEMP LED on	1. Be sure the fans are operating correctly and the air flow is good. 2. Check processor 1 through 4 LEDs. If the CPU LED on the diagnostics panel is also on, one of the microprocessors has caused the error. 3. Be sure the power supply fans are operating correctly and the air flow is good. 4. Processor Board 5. System Board
VRM LED on (Check the VRM (voltage regulator module) LEDs on the processor board.)	1. Voltage regulator module indicated by the VRM LED on the processor board that is turned on 2. Processor for the VRM LED that is turned on. See "Microprocessor installation". 3. Processor Board

	Search Keywords
	Document Category	Diagnostics
	Date Created	15-03-99
	Last Updated	16-03-99
	Revision Date	26-05-2000
	Brand	IBM PC Server
	Product Family	Netfinity 5500 M20
	Machine Type	8662
	Model	All
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes