Netfinity 5000 - Identifying Problems Using Status LEDs

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Document ID: DDSE-426NQN

Netfinity 5000 - Identifying Problems Using Status LEDs

Applicable to: World-Wide

Identifying Problems Using Status LEDs
Your server has LEDs to help you identify problems with some server components. These LEDs are part of the diagnostics built into the server. By following the path of lights, you can quickly identify the type of system error that occurred.

Status LEDs are located on the following components:
- Operator LED panel
For more information, see Front Panel Indicators.
- Hard disk drive trays
For more information, see Controls.
- Power supply
For more information, see Power Supply LEDs.
- System board
See System Board LEDs for locations of the LEDs on the system board.

Power Supply LEDs: The AC Power LEDs, located on the rear of the power supply, provide status information about the power supply. See Front Panel Indicators for the location of these LEDs.

The following table describes the AC Power LEDs.

AC Power LED

Description and Action

On

The power supply is on and operating correctly.

Off

There is an AC power problem.
Possible causes:
1. There is no AC power to the power supply.
Actions: Verify that:
The power cord is properly connected to the server.
The power outlet functions properly.
2. The power supply has failed.
Action: Replace the power supply.

No beep, fans running, and AC power LED
blinking

System held in reset
Possible causes:
1. If an optional VRM is installed and no optional processor.
Action: Remove the optional VRM.
2. If optional VRM failed.
Action: Replace the optional VRM.
3. If primary VRM failed.
Action: Replace the system board.
4. If system board failed.
Action: Replace system board.

LED Diagnostics: The diagnostics built into your server allow you to quickly identify the type of system error that occurred. When the System Error LED on the information LED panel is illuminated, use the following information to isolate the problem. An error message usually appears on the display monitor as well.

If the System Error LED on the information LED panel on the front of the server is on, a system error was detected. Check the LEDs on the power supplies and at any Ethernet adapters, then open the cover and check to see which of the LEDs on the system board inside the server are on. (See System Board LEDs for the location of the LEDs.)

System Board LED

Description

Service Processor Error LED on

An error has occurred in the service processor.
Actions:
1. Try a reset by turning of the system, jumper/short J39, and turn on the system.
2. Replace the system board.

NMI LED on

A non-maskable interrupt occurred. The PCI 1 or PCI 2 LED will probably also be on.
Actions:
1. If the PCI 1 or PCI 2 LED is on, follow the instructions for those LEDs.
2. If the PCI 1 or PCI 2 LED is not on, restart the server. If the problem persists (the NMI LED stays on), go to General Checkout.

SMI LED on

A system-management interrupt occurred. This is an indication of service processor activity, and is not an error.
Actions: No action is required.

PCI 1 LED on

An error occurred on PCI bus 0. An adapter in PCI slot 5 or the system board caused the error.
Actions: Check the error log for additional information. If the error log indicates a problem with the integrated Ethernet controller, replace the system board.

PCI 2 LED on

An error occurred on PCI Bus 1. An adapter in PCI slot 1, 2, 3, or 4 or the system board caused the error.
Actions:
1. Check the error log for additional information.
2. If you cannot correct the problem from the information in the error log, try to determine the failing adapter by removing one adapter at a time from the secondary PCI bus (PCI slots 1 4) and restarting the server after each adapter is removed.

DIMM 1 Error LED on

The DIMM in DIMM slot 1 has failed.
Action: Replace the DIMM in DIMM slot 1.

DIMM 2 Error LED on

The DIMM in DIMM slot 2 has failed.
Action: Replace the DIMM in DIMM slot 2.

DIMM 3 Error LED on

The DIMM in DIMM slot 3 has failed.
Action: Replace the DIMM in DIMM slot 3.

DIMM 4 Error LED on

The DIMM in DIMM slot 4 has failed.
Action: Replace the DIMM in DIMM slot 4.

FAN 1 LED on

Fan 1 has failed or is operating too slowly.
Note: A failing fan can also cause the TEMP and DASD 1 LEDs to be on.
Action: Replace fan 1.

FAN 2 LED on

Fan 2 has failed or is operating too slowly.
Note: A failing fan can also cause the TEMP and DASD 1 LEDs to be on.
Action: Replace fan 2.

TEMP LED on

The system temperature has exceeded the maximum rating.
Actions:
1. Check to see if a fan has failed. If it has, replace the fan.
2. Make sure the room temperature is not too hot.

Integrated Voltage Regulator Error LED on

The voltage regulator for the primary microprocessor slot has failed.
Actions: Replace the system board.

Secondary Processor VRM Error LED on

The voltage regulator module (VRM) for the secondary microprocessor slot has failed.
Actions:
1. Turn off the server, reseat the VRM, and restart the server.
2. If the problem persists, replace the VRM.

Primary Microprocessor Error LED on

The microprocessor in the primary microprocessor slot has failed.
Actions:
1. Turn off the server, reseat the microprocessor, and restart the server.
2. If the problem persists, replace the microprocessor.

Secondary Microprocessor Error LED on

The microprocessor in the secondary microprocessor slot has failed.
Actions:
1. Turn off the server, reseat the microprocessor and VRM; then restart the server.
2. If the problem persists, replace the microprocessor.

Power Supply 1 LED on

The primary power supply has failed.
Action: Replace the primary power supply replaced.

Power Supply 2 LED on

The secondary power supply has failed.
Action: Replace the secondary power supply.

DASD 1 LED on

A hot-swap hard disk drive has failed.
Actions:
1. Check the error log for additional information. If the error log indicates a
temperature problem and the fans are working correctly, check the system for proper air flow.
2. If the amber Hard Disk Status LED on one of the hot-swap hard disk drives is on, replace the hard disk drive.

System Error LED on the information LED panel on the front of the server is off. The diagnostics have not detected a system error.

Search Keywords

Document Category

Diagnostics

Date Created

12-11-98

Last Updated

12-11-98

Revision Date

12-11-99

Brand

IBM PC Server

Product Family

Netfinity 5000

Machine Type

8659

Model

ALL

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes

AC Power LED	Description and Action
On	The power supply is on and operating correctly.
Off	There is an AC power problem. Possible causes: 1. There is no AC power to the power supply. Actions: Verify that: The power cord is properly connected to the server. The power outlet functions properly. 2. The power supply has failed. Action: Replace the power supply.
No beep, fans running, and AC power LED blinking	System held in reset Possible causes: 1. If an optional VRM is installed and no optional processor. Action: Remove the optional VRM. 2. If optional VRM failed. Action: Replace the optional VRM. 3. If primary VRM failed. Action: Replace the system board. 4. If system board failed. Action: Replace system board.

System Board LED	Description
Service Processor Error LED on	An error has occurred in the service processor. Actions: 1. Try a reset by turning of the system, jumper/short J39, and turn on the system. 2. Replace the system board.
NMI LED on	A non-maskable interrupt occurred. The PCI 1 or PCI 2 LED will probably also be on. Actions: 1. If the PCI 1 or PCI 2 LED is on, follow the instructions for those LEDs. 2. If the PCI 1 or PCI 2 LED is not on, restart the server. If the problem persists (the NMI LED stays on), go to General Checkout.
SMI LED on	A system-management interrupt occurred. This is an indication of service processor activity, and is not an error. Actions: No action is required.
PCI 1 LED on	An error occurred on PCI bus 0. An adapter in PCI slot 5 or the system board caused the error. Actions: Check the error log for additional information. If the error log indicates a problem with the integrated Ethernet controller, replace the system board.
PCI 2 LED on	An error occurred on PCI Bus 1. An adapter in PCI slot 1, 2, 3, or 4 or the system board caused the error. Actions: 1. Check the error log for additional information. 2. If you cannot correct the problem from the information in the error log, try to determine the failing adapter by removing one adapter at a time from the secondary PCI bus (PCI slots 1 4) and restarting the server after each adapter is removed.
DIMM 1 Error LED on	The DIMM in DIMM slot 1 has failed. Action: Replace the DIMM in DIMM slot 1.
DIMM 2 Error LED on	The DIMM in DIMM slot 2 has failed. Action: Replace the DIMM in DIMM slot 2.
DIMM 3 Error LED on	The DIMM in DIMM slot 3 has failed. Action: Replace the DIMM in DIMM slot 3.
DIMM 4 Error LED on	The DIMM in DIMM slot 4 has failed. Action: Replace the DIMM in DIMM slot 4.
FAN 1 LED on	Fan 1 has failed or is operating too slowly. Note: A failing fan can also cause the TEMP and DASD 1 LEDs to be on. Action: Replace fan 1.
FAN 2 LED on	Fan 2 has failed or is operating too slowly. Note: A failing fan can also cause the TEMP and DASD 1 LEDs to be on. Action: Replace fan 2.
TEMP LED on	The system temperature has exceeded the maximum rating. Actions: 1. Check to see if a fan has failed. If it has, replace the fan. 2. Make sure the room temperature is not too hot.
Integrated Voltage Regulator Error LED on	The voltage regulator for the primary microprocessor slot has failed. Actions: Replace the system board.
Secondary Processor VRM Error LED on	The voltage regulator module (VRM) for the secondary microprocessor slot has failed. Actions: 1. Turn off the server, reseat the VRM, and restart the server. 2. If the problem persists, replace the VRM.
Primary Microprocessor Error LED on	The microprocessor in the primary microprocessor slot has failed. Actions: 1. Turn off the server, reseat the microprocessor, and restart the server. 2. If the problem persists, replace the microprocessor.
Secondary Microprocessor Error LED on	The microprocessor in the secondary microprocessor slot has failed. Actions: 1. Turn off the server, reseat the microprocessor and VRM; then restart the server. 2. If the problem persists, replace the microprocessor.
Power Supply 1 LED on	The primary power supply has failed. Action: Replace the primary power supply replaced.
Power Supply 2 LED on	The secondary power supply has failed. Action: Replace the secondary power supply.
DASD 1 LED on	A hot-swap hard disk drive has failed. Actions: 1. Check the error log for additional information. If the error log indicates a temperature problem and the fans are working correctly, check the system for proper air flow. 2. If the amber Hard Disk Status LED on one of the hot-swap hard disk drives is on, replace the hard disk drive.

	Search Keywords
	Document Category	Diagnostics
	Date Created	12-11-98
	Last Updated	12-11-98
	Revision Date	12-11-99
	Brand	IBM PC Server
	Product Family	Netfinity 5000
	Machine Type	8659
	Model	ALL
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes