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Diagnosing the status LEDs - IBM eServer xSeries 240, Netfinity 5600

Troubleshooting


Problem

Using the status LEDs to diagnose problems

Resolving The Problem

This document is intended for trained servicers who are familiar with IBM server products. Use this document along with advanced diagnostic tests to troubleshoot problems effectively. Before servicing an IBM product, be sure to review the safety information. Click here to review safety information.

Operator information panel
Controls and indicators
Power supply LEDs
Diagnostics panel LED


Operator information panel

The operator information panel on the front of the server contains status lights.

45350_operatorpanelinfo.gif

Index Status light Description
1 System power light When this green light is on, system power is present in the server. When this light flashes, the server is in standby mode (the system power supply is turned off and AC current is present). When this light is off, either a power supply, AC power, or a light has failed.

WARNING: If this light is off, it does not mean there is no electrical current present in the server. The light might be burned out. To remove all electrical current from the server, you must unplug the server power cords from the electrical outlets.
2 System POST complete light This green light is on when the power-on self-test (POST) completes without any errors.
3 SCSI hard disk drive activity light This green light is on when there is activity on a hard disk drive.
4 Processor 1 activity light This green light is on when there is microprocessor 1 activity.
5 Processor 2 activity light This green light is on when there is microprocessor 2 activity.
6 Information light This amber light is on when the information log contains information about certain conditions in the server that might affect performance. For example, the light will be on if the server does not have redundant power. A light on the diagnostic LED panel will also be on.
7 System error light This amber light is on when a system error occurs. A light on the diagnostic LED panel will also be on to further isolate the error.
8 Ethernet Transmit/Receive activity light When this green light is on, there is transmit or receive activity to or from the server.
9

Ethernet link status light

 When this green light is on, there is an active connection on the Ethernet port.
10 Ethernet speed 100 Mbps When this green light is on, the Ethernet speed is 100 Mbps. When the light is off, the Ethernet speed is 10 Mbps.


Controls and indicators

The most commonly used controls and indicators on the front of the server appear in the following illustrations.

Tower model

controls and indicators

Rack model

controls and indicators

Index Controls and indicators Description
1 Operator information panel The lights on this panel give status information for the server.
2 Diskette eject button Press this button to eject a diskette from the drive.
3 Diskette drive in-use light When this light is on, the diskette drive is being accessed.
4 CD-ROM eject/load button Press this button to eject or retract the CD-ROM tray so that you can insert or remove a CD.
5 Hard disk status light Each of the hot-swap drive bays has a Hard Disk Status light. When this amber light is on continuously, the drive has failed. When the light flashes slowly (one flash per second), the drive is being rebuilt. When the light flashes rapidly (three flashes per second), the controller is identifying the drive.
6 Hard disk activity light Each of the hot-swap drive bays has a Hard Disk Activity light.
When this green light is flashing, the drive is being accessed.
7 Cover release lever Use this lever to release the left-side cover on the tower model or the top cover on the rack model.
8 Reset button Press this button to reset the server and run the power-on self-test (POST).
9 Power control button Press this button to manually turn the server on or off.

WARNING: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
10 CD-ROM drive in-use light When this light is on, the CD-ROM drive is being accessed.
11 CD-ROM manual tray release opening Insert a straightened paper clip in the opening to release the CD-ROM tray when using the CD-ROM eject button is not successful.


Power supply LEDs

AC power
LED		 DC power
LED		 Description and action
On On The power supply is on and operating correctly.
On Off

There is a DC power problem.

Possible cause
The Power Control button on the front of the server is in the Off position.

Action
Press the Power Control buttonto start the server.

Possible cause
 The power supply has failed.

Action
Action: Replace the power supply.
Off Off

There is an AC power problem.

Possible cause
There is no AC power to the power supply.

Action
Verify the power cord is properly connected to the server. The power outlet functions properly.

Possible cause
The power supply has failed.

Action
Replace the power supply.


Diagnostics panel LED

: light path diagnostics

System error LED
(information LED panel)		 Lit diagnostics
panel LED		 Cause Action

On

A system error was detected. Check to see
which of the LEDs on the diagnostics panel inside the server are on.

 None The system error log is 75% or more full or a PFA alert was logged. Check the system error log and correct any problems.
about clearing the error log. Disconnecting the server from all power sources for at least 20 seconds will turn off the System Error LED.
. CPU One of the microprocessors has failed or a microprocessor is installed in the wrong connector.
  1. Check the Microprocessor Error LEDs on the processor board.
  2. Turn off the server, reseat the microprocessor indicated by the lit Microprocessor Error LED, and restart the server.
  3. If the problem persists, replace the microprocessor.
. VRM One of the voltage regulator modules on the processor board has failed.
  1. Check the VRM Error LEDs on the processor board.
  2. Turn off the server, reseat the VRM indicated by the lit VRM Error LED, and restart theserver.
  3. If the problem persists, replace the VRM.
. MEMORY A memory error occured.
  1. Check the DIMM Error LEDs on the memory board.
  2. Replace the DIMM indicated by the lit DIMM Error LED.
. PCI BUS A An error occured on PCI bus A. An adapter in PCI slot 1 or 2 on the system board caused the error.
  1. Check the error log for additional information. If the error log indicates a problem with the integrated Ethernet controller, replace the system board.
  2. If you cannot isolate the failing adapter from the information in the error log, try to determine the failing adapter by removing one adapter at a time from PCI bus A (PCI slot 1 and 2) and restarting the server after each adapter is removed.
. PCI BUS B An error occured on PCI bus B. An adapter in PCI slot 3, 4, or 5 or the system board caused the error.
  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 PCI bus B (PCI slot 3-5 ) and restarting the server after each adapter is removed.
. HDD A hot-swap hard disk drive has failed on bus 1.
  1. Check the error log for additional information. If the error log indicates a problem and the fans are working correctly.
  2. If the amber Hard Disk Status LED on one of the hot-swap hard disk drives is on, refer to the ServeRAID Information documentation
. NMI A nonmaskable interrupt occurred.
  1. If the PCI BUS A or PCI BUS B LED is on, follow the instructions for those LEDs.
  2. If the PCI BUS A or PCI BUS B LED is not on, restart the server.
. SMI A system management event occured. Restart the server
. SERVICE
PROCESSOR
BUS		 An error has occurred on the service processor bus. Disconnect all power from the server for 30 seconds. Reconnect the power to the server, then, restart the server.
. POWER
SUPPLY 1		 Power supply 1 has failed Replace power supply 1.
. POWER
SUPPLY 2		 Power supply 2 has failed Replace power supply 2.
. POWER
SUPPLY 3		 Power supply 3 has failed Replace power supply 3.
. POWER SUPPLY
NON
REDUNDANT		 Power supply redundancy has
been lost.
  1. If one of the power supply LEDs is on, replace the indicated power supply.
  2. Install an additional power supply to regain redundancy.
. FAN 1

Fan 1 has failed or is operating too slowly.

Notes:

  1. An LED on the failing fan assembly will also be on.
  2. A failing fan can also cause the TEMPERATURE and HDD LEDs to be on.
 Replace fan 1.
. FAN 2 Fan 2 has failed or is operating too slowly.

Notes:

  1. An LED on the failing fan assembly will also be on.
  2. A failing fan can also cause the TEMPERATURE and HDD LEDs to be on.
 Replace fan 2.
. FAN 3 Fan 3 has failed or is operating too slowly.

Notes:

  1. An LED on the failing fan assembly will also be on.
  2. A failing fan can also cause the TEMPERATURE and HDD LEDs to be on.

 Replace fan 3.
. TEMPERATURE The system temperature has exceeded a threshold level.
  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.
Off None The light path diagnostics have not detected a system error. None

 

Document Location

Worldwide

Operating System

Older System x:Operating system independent / None

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Document Information

Modified date:
28 January 2019

UID

ibm1MIGR-45350

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