IBM xSeries 235 Operating instructions

xSeries 235 Type 8671
Hardware Maintenance Manual and Troubleshooting
Guide
ERserver
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xSeries 235 Type 8671
Hardware Maintenance Manual and Troubleshooting
Guide
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Note
Before using this information and the product it supports, be sure to read Appendix C, “Notices” on
page 197.
Fourth Edition (July 2002)
The following paragraph does not apply to the United Kingdom or any country where such provisions are
inconsistent with local law:
INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION ″AS IS″WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow
disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the
information herein; these changes will be incorporated in new editions of the publication. IBM may make
improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time.
This publication was developed for products and services offered in the United States of America. IBM may not offer
the products, services, or features discussed in this document in other countries, and the information is subject to
change without notice. Consult your local IBM representative for information on the products, services, and features
available in your area.
Requests for technical information about IBM products should be made to your IBM reseller or IBM marketing
representative.
© Copyright International Business Machines Corporation 2002. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

About this manual
This manual contains diagnostic information, a Symptom-to-FRU index, service
information, error codes, error messages, and configuration information for the IBM
®
Eserver xSeries
™
235.
Important: The field replaceable unit (FRU) procedures are intended for trained
servicers who are familiar with IBM xSeries products. See the parts
listing in “System” on page 156 to determine if the component being
replaced is a customer replaceable unit (CRU) or a FRU.
Important safety information
Be sure to read all caution and danger statements in this book before performing
any of the instructions. See “Safety information” on page 163.
Leia todas as instruções de cuidado e perigo antes de executar qualquer operação.
Prenez connaissance de toutes les consignes de type Attention et Danger avant de
procéder aux opérations décrites par les instructions.
Lesen Sie alle Sicherheitshinweise, bevor Sie eine Anweisung ausführen.
© Copyright IBM Corp. 2002 iii

Accertarsi di leggere tutti gli avvisi di attenzione e di pericolo prima di effettuare
qualsiasi operazione.
Lea atentamente todas las declaraciones de precaución y peligro ante de llevar a
cabo cualquier operación.
Online support
You can download the most current diagnostic, BIOS flash, and device driver files
from http://www.ibm.com/pc/support on the World Wide Web.
iv xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide

Contents
About this manual .......................iii
Important safety information ....................iii
Online support .........................iv
Chapter 1. General information...................1
Related publications .......................1
Notices and statements used in this book ...............2
Features and specifications.....................2
Server controls and indicators ....................4
Front view ..........................4
Rear view ..........................6
Operator information panel ....................7
Server power features.......................8
Turning on the server ......................8
Turning off the server ......................9
Standby mode ........................10
Chapter 2. Configuration.....................11
Using the Configuration/Setup Utility program..............11
Starting the Configuration/Setup Utility program ............12
Choices available from the Configuration/Setup main menu .......12
Using passwords .......................16
Using the LSI Logic Configuration Utility program ............17
Starting the LSI Logic Configuration Utility program ..........17
Formatting a SCSI hard disk drive .................18
Using the ServerGuide Setup and Installation CD ............18
ServerGuide features .....................18
Setup and configuration overview .................19
System Partition .......................20
Typical operating system installation ................20
Setting up or updating multiple servers ...............21
Installing your operating system without ServerGuide ..........21
Using ServeRAID Manager ....................22
Configuring the Gigabit Ethernet controller ...............22
High-performance Ethernet modes.................23
Ethernet port connector.....................23
Updating the integrated system management firmware ..........23
Chapter 3. Diagnostics .....................25
General checkout ........................25
Diagnostic tools overview .....................27
POST error logs ........................28
Viewing error logs from the Configuration/Setup Utility program ......28
Viewing error logs from the diagnostic programs ...........28
ServerGuide error symptoms....................28
Small computer system interface messages ..............29
Diagnostic programs and error messages ...............29
Text messages ........................30
Starting the diagnostic programs .................30
Diagnostic error message tables .................31
Identifying problems using status LEDs ................32
LEDs for Active PCI slots ....................32
Power-supply LEDs ......................34
© Copyright IBM Corp. 2002 v

Light Path Diagnostics .....................34
Recovering the BIOS code ....................36
Power checkout ........................36
Troubleshooting the Ethernet controller ................37
Network connection problems ..................37
Ethernet controller troubleshooting chart ..............37
Ethernet controller messages ..................39
Chapter 4. Customer replaceable units ...............41
Installation guidelines ......................41
System reliability considerations .................41
Working inside the server with the power on .............42
Handling static-sensitive devices .................42
Major components of the xSeries 235 Type 8671 server..........42
System-board component locations .................44
System-board option connectors .................44
System-board internal cable connectors...............45
System-board external port connectors ...............46
System-board switches and jumpers ................47
System-board LED locations ...................49
Removing the server door (tower model) ...............50
Removing the server left-side cover and bezel (tower model) ........51
Removing the left-side cover ...................51
Removing the bezel ......................52
Removing the server top cover and bezel (rack configuration) .......53
Removing the top cover ....................53
Removing the bezel ......................54
Removing and installing the adapter-support bracket ...........54
Working with adapters ......................56
Adapter considerations .....................57
Installing a hot-plug adapter (slots 5 and 6) .............59
Installing a non-hot-plug adapter (any slot)..............61
Cabling example for a ServeRAID controller .............63
Working with the 3-Pack Ultra320 Hot-Swap Expansion option .......67
Installing the 3-Pack Ultra320 Hot-Swap Expansion option .........68
Installing internal drives......................71
Internal drive bays ......................72
Installing a hot-swap hard disk drive ................74
Installing a 5.25-inch removable-media drive .............75
Installing memory modules ....................77
Installing an additional microprocessor ................80
Replacing a hot-swap power supply .................84
Installing a hot-swap power-supply option ...............86
Replacing a hot-swap fan .....................91
Replacing a front fan......................92
Replacing a center fan .....................92
Replacing a rear fan ......................92
Replacing the battery ......................93
Completing the installation.....................95
Installing the server bezel and left-side cover (tower model) .......96
Installing the server door (tower model) ...............98
Installing the server bezel and top cover (rack configuration) .......99
Updating your server configuration ................100
Connecting external options....................101
Cabling the server .......................102
Keyboard cabling ......................102
vi xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide

Pointing device cabling ....................103
Parallel port cabling......................103
Serial cabling ........................103
Advanced System Management Interconnect cabling .........103
USB cabling ........................103
Video cabling ........................103
Gigabit Ethernet cabling ....................103
Power cabling ........................103
Installing the server in a rack ...................104
Input/output connectors .....................104
Parallel port ........................105
Video port .........................105
Keyboard port ........................106
Auxiliary-device (pointing device) port ...............106
Ultra320 SCSI system-board connectors ..............106
Serial ports .........................108
Universal Serial Bus version 1.1 ports ...............109
Gigabit Ethernet port .....................109
Chapter 5. Service replaceable units................111
Thermal grease ........................111
System board .........................112
Microprocessor removal .....................113
Operator information panel ....................115
Diskette drive .........................116
DASD backplane........................117
Power-supply (non-hot-swap) ...................118
Front fan housing .......................119
Hot-swap card.........................120
Diagnostics panel card .....................121
Power reset card........................122
Chapter 6. Symptom-to-FRU index ................125
Beep symptoms ........................125
No-beep symptoms .......................128
Diagnostic panel system error LED .................128
Diagnostic error codes .....................130
Error symptoms ........................134
Power-supply LED errors.....................141
POST error codes .......................141
Service processor error codes ...................147
SCSI error codes .......................147
Temperature error messages ...................148
Fan error messages ......................148
Power error messages .....................149
System shutdown .......................149
Voltage related system shutdown.................149
Temperature related system shutdown ...............150
DASD checkout ........................150
Host built-in self test (BIST)....................150
Bus fault messages.......................151
Undetermined problems .....................151
Problem determination tips ....................152
Chapter 7. Parts listing for the xSeries 235 .............155
System ...........................156
Contents vii

Keyboard CRUs ........................157
Power cord CRUs .......................158
Appendix A. Getting help and technical assistance ..........161
Before you call ........................161
Using the documentation.....................161
Getting help and information from the World Wide Web .........161
Software service and support ...................162
Hardware service and support ...................162
Appendix B. Related service information ..............163
Safety information .......................163
General safety .......................163
Electrical safety .......................164
Safety inspection guide ....................165
Handling electrostatic discharge-sensitive devices ..........166
Grounding requirements ....................167
Safety notices (multi-lingual translations) ..............167
Appendix C. Notices ......................197
Edition notice .........................197
Trademarks..........................198
Important notes ........................198
Electronic emission notices ....................199
Federal Communications Commission (FCC) statement ........199
Industry Canada Class A emission compliance statement ........199
Australia and New Zealand Class A statement ............200
United Kingdom telecommunications safety requirement ........200
European Union EMC Directive conformance statement ........200
Taiwan electrical emission statement ...............200
Japanese Voluntary Control Council for Interference (VCCI) statement 201
viii xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide

Chapter 1. General information
The IBM Eserver xSeries 235 Type 8671 is a high-performance server. It can be
upgraded to a symmetric multiprocessing (SMP) server through a microprocessor
upgrade. It is ideally suited for networking environments that require superior
microprocessor performance, efficient memory management, flexibility, and large
amounts of reliable data storage.
The xSeries 235 server contains several IBM X-Architecture
™
technologies, which
help increase server performance and reliability.
If you have access to the Internet, you can obtain up-to-date information about your
server model and other IBM server products at
http://www.ibm.com/pc/us/eserver/xseries/ on the World Wide Web.
Note: The illustrations in this document might differ slightly from the hardware.
Related publications
This Hardware Maintenance Manual and Troubleshooting Guide is provided in
Portable Document Format (PDF) on the IBM xSeries Documentation CD. It
contains information to help you solve the problem yourself or to provide helpful
information to a service technician.
In addition to this Hardware Maintenance Manual and Troubleshooting Guide, the
following xSeries 235 Type 8671 documentation is provided with your server:
vUser’s Guide
The User’s Guide provides general information about the server, including
information about features, how to configure the server, how to use the
ServerGuide
™
Setup and Installation CD, and how to get help.
vInstallation Guide
This printed publication contains setup and installation instructions.
vRack Installation Instructions
This printed publication contains the instructions to install your server in a rack.
vSafety Information Book
This multilingual publication is provided in PDF on the IBM xSeries
Documentation CD. It contains translated versions of the caution and danger
statements that appear in the documentation for your server. Each caution and
danger statement has an assigned number, which you can use to locate the
corresponding statement in your native language.
vOption Installation Guide
This publication is provided in PDF on the IBM xSeries Documentation CD. It
contains instructions to install, remove, and connect optional devices supported
by your server.
Depending on your server model, additional publications might be included on the
IBM xSeries Documentation CD.
© Copyright IBM Corp. 2002 1

Notices and statements used in this book
The caution and danger statements used in this book also appear in the multilingual
Safety Information book provided on the IBM xSeries Documentation CD. Each
caution and danger statement is numbered for easy reference to the corresponding
statements in the safety book.
The following types of notices and statements are used in this book:
vNote: These notices provide important tips, guidance, or advice.
vImportant: These notices provide information or advice that might help you avoid
inconvenient or problem situations.
vAttention: These notices indicate possible damage to programs, devices, or
data. An attention notice is placed just before the instruction or situation in which
damage could occur.
vCaution: These statements indicate situations that can be potentially hazardous
to you. A caution statement is placed just before the description of a potentially
hazardous procedure step or situation.
vDanger: These statements indicate situations that can be potentially lethal or
extremely hazardous to you. A danger statement is placed just before the
description of a potentially lethal or extremely hazardous procedure step or
situation.
Features and specifications
Table 1 on page 3 provides a summary of the features and specifications for your
server.
Note: You can use the Configuration/Setup Utility program in your server to
determine the specific type of microprocessor on your system board.
2xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide

Table 1. Features and specifications
Microprocessor:
vIntel Xeon
™
, 1.8 GHz or higher
depending on server model
v512 KB (minimum) Level-2 cache
v100 MHz front-side bus (FSB), at four
data transfers per cycle, yielding a
400 MHz system bus
vSupport for up to two
microprocessors
Memory:
vStandard: 256 MB or 512 MB,
depending on server model,
expandable to 6 GB
vType: 133 MHz, PC2100, registered,
ECC, double data rate, SDRAM
vSizes: 128 MB, 256 MB, 512 MB, or
1 GB, in pairs
vConnectors: two-way interleaved, six
dual inline memory module (DIMM)
connectors
vMaximum: Three pairs of DIMMs
Drives standard:
vDiskette: 1.44 MB
vCD-ROM: IDE
Expansion bays:
vSix open hot-swap, slim-high,
3.5-inch drive bays
vThree 5.25-inch bays (CD-ROM drive
installed in one bay)
vOne 3.5-inch removable-media drive
bay (diskette drive installed)
PCI expansion slots:
vTwo Active
™
PCI-X (hot-plug) 133
MHz/64-bit
vThree PCI-X non-hot-plug 100
MHz/64-bit
vOne PCI non-hot-plug, 33 MHz/32-bit
Upgradeable microcode:
BIOS, diagnostics, and IBM integrated
system management upgrades (when
available) can update EEPROMs on the
system board
Predictive Failure Analysis
®
(PFA)
alerts:
vPower supplies
vFans
vMemory
vHard disk drives
vMicroprocessors
vVoltage regulator modules (VRMs)
Integrated functions:
vIBM integrated system management
processor (ISMP)
– Service processor with Light Path
Diagnostics
™
– Interconnect port
– Dedicated I/O port
– Support for IBM Remote Supervisor
Adapter
vBroadcom 5703 10/100/1000 Ethernet
controller (one port, controller on
system board)
vOne serial port
vOne parallel port
vTwo internal Ultra320 SCSI ports
(dual-channel integrated SCSI controller
with RAID capabilities on the system
board)
vThree Universal Serial Bus (USB) v1.1
ports (one on the front and two on the
rear of the enclosure)
vKeyboard port
vMouse port
vATI Rage XL video (controller on
system board)
– Compatible with SVGA and VGA
– 8 MB video memory
Security features:
vDoor and side cover lock
vPower-on and administrator passwords
vRemote-control security settings
vSelectable drive startup
vKeyboard password
vSystem-management security
– User login password
– Read-only or read/write access
– Dial-in call-back
Power supplies:
vHot-swap (some models)
– Standard: Two 560 watts (115-230 V
ac) for redundancy
– Redundant/nonredundant indicator
on diagnostic LED panel
vNon-hot-swap (some models)
– Standard: One 560 watts (115-230 V
ac)
– Upgradeable to two hot-swap power
supplies
Acoustical noise emissions:
vSound power, idle: 6.3 bel maximum
vSound power, operating: 6.3 bel
maximum
vSound pressure, idle: 48 dBa maximum
vSound pressure, operating: 48 dBa
maximum
Redundant cooling:
Six hot-swap fans
Electrical input:
vSine-wave input (50-60 Hz) required
vInput voltage range automatically selected
vInput voltage low range:
– Minimum: 90 V ac
– Maximum: 137 V ac
vInput voltage high range:
– Minimum: 180 V ac
– Maximum: 265 V ac
vInput kilovolt-amperes (kVA) approximately:
– Minimum: 0.1 kVA
– Maximum: 0.8 kVA
Power available for drives:
v+5Vdc
v+12Vdc
Heat output:
Approximate heat output in British thermal
units (Btu) per hour
vMinimum configuration: 341 Btu (100
watts/hour)
vMaximum configuration: 2600 Btu (760
watts/hour)
Environment:
vAir temperature:
– Server on: 10° to 35°C (50° to 95°F)
Altitude: 0 to 2134 m (7000 ft)
– Server off: -40° to +60°C (-40° to 140°F)
Maximum altitude: 2133 m (7000 ft)
vHumidity:
– Server on: 8% to 80%
– Serveroff:8%to80%
Size (tower model):
vHeight: 440 mm (17.3 in.)
vDepth: 700 mm (27.5 in.)
vWidth: 221 mm (8.7 in.)
vWeight: 33.5 kg (74 lb) to 45.8 kg (101 lb)
depending upon configuration
Size (5 U) (rack configuration):
vHeight: 216 mm (8.5 in.)
vDepth: 674 mm (26.5 in.)
vWidth: 440 mm (17.3 in.)
vWeight: 33.5 kg (74 lb) to 45.8 kg (101 lb)
depending upon configuration
Chapter 1. General information 3

Server controls and indicators
This section identifies the controls and indicators on the front and rear of your
server.
Note: The illustrations in this document might differ slightly from your hardware.
Front view
Tower model
Hard disk
drive activity
LED (green)
Diskette drive
activity LED
Diskette-
eject button
USB 3 connector
Hard disk
drive status
LED (amber)
Reset
button
Power-control
button
Power-control
button shield
(if installed)
Cover-
release
latch
Model type/serial
number
Operator
information
panel
CD-eject button
CD-ROM drive
activity LED
(green)
Rack configuration
Hard disk
drive activity
LED (green)
Hard disk
drive status
LED (amber)
Reset button
Power-control
button
Cover-
release
latch
Operator
information
panel
Power-control
button shield
(if installed)
Model type/serial
number
CD-ROM drive
activity LED
(green)
CD-eject button
Diskette drive
activity LED
(green)
Diskette-eject
button
USB 3
connector
Operator information panel: The LEDs on this panel give status information for
your server. See “Operator information panel” on page 7 for more information.
4xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide

USB 3 connector: This is the front USB connector. Two additional USB connectors
are on the rear of the server.
Diskette-eject button: Press this button to release a diskette from the drive.
Diskette-drive activity LED: When this LED is on, it indicates that the diskette
drive is in use.
Hard disk drive activity LED: Each hot-swap drive has a hard disk drive activity
LED. When this green LED is flashing, the drive is being accessed.
Hard disk drive status LED: Each hot-swap drive has a hard disk drive status
LED. When this amber LED is on continuously, the drive has failed. If an optional
IBM ServeRAID
™
controller is installed in the server, when the LED flashes slowly
(one flash per second), the drive is being rebuilt. When the LED flashes rapidly
(three flashes per second), the controller is identifying the drive.
Model type/serial number: The model type identifies your server model. The serial
number uniquely identifies your server.
Cover-release latch: Slide this latch to release the cover.
Reset button: Press this button to reset the server and run POST.
Power-control button: Press this button to manually turn on the server or put the
server in Standby mode (see “Server power features” on page 8).
Power-control button shield: You can install this circular disk over the
power-control button to prevent accidental manual power-off. This disk is provided
with your server.
CD-ROM drive activity LED: When this LED is on, it indicates that the CD-ROM
drive is in use.
CD-eject button: Press this button to release a CD from the drive.
Chapter 1. General information 5

Rear view
This section identifies the indicators on the rear of your server. The following
illustrations contain most of these indicators. More information is available at
“Working with adapters” on page 56 and “Input/output connectors” on page 104.
Server with fixed power supply
1
2
AC power LED
(green)
DC power LED
(green)
Fan 1 LED
Fan 2 LED
Ethernet link
status LED
PCI-X slot 5
attention LED
PCI-X slot 6
attention LED
NMI button
(service use only)
Server with hot-swap power supplies
1
2
AC power LED
(green)
AC power LED
(green)
DC power LED
(green)
DC power LED
(green)
Ethernet link
status LED
PCI-X slot 5
attention LED
PCI-X slot 6
attention LED
Power supply 2
Power supply 1
Fan 1 LED
Fan 2 LED
NMI button
(service use only)
6xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide

Fans 1 and 2 LEDs: These LEDs provide status information about fans 1 and 2
(the rear fans in connector J25). For additional information, see “Light Path
Diagnostics” on page 34.
Ethernet link status LED: This LED is on the Ethernet connector. When this LED
is on, there is an active connection on the Ethernet port.
PCI-X slot attention LED: This green LED flashes approximately once per second
when it is on. This LED is visible from the rear of the server and from inside the
server. The meaning of the attention LED is defined by your operating system. For
an illustration showing this LED on the system board, see “LEDs for Active PCI
slots” on page 32.
NMI button: The Non-Maskable Interrupt (NMI) button is for service use only.
DC power LED: This green LED provides status information about the power
supply. During typical operation, both the ac and dc power LEDs are on. For any
other combination of LEDs, see “Power-supply LED errors” on page 141.
AC power LED: This green LED provides status information about the power
supply. During typical operation, both the ac and dc power LEDs are on. For any
other combination of LEDs, see “Power-supply LED errors” on page 141.
Operator information panel
The following illustration shows the status LEDs on the operator information panel
on the front of the server.
TX
RX
OK
1
Power-on
LED
POST-
complete LED
Hard disk drive
activity LED Information
LED
System-
error LED
Ethernet transmit/
receive activity LED
/
Important: If the power-on LED is off, it does not mean there is no electrical
current present in the server. The LED might be burned out. To remove
all electrical current from the server, you must unplug the server power
cords from the electrical outlets or from the uninterruptible power
device.
Power-on LED: When this green LED is on, power is present in the server.
When this LED flashes, the server is in Standby mode (the system operating
system is turned off and ac current is present). When this LED is off, the power
subsystem, the ac power, or an LED has failed.
POST-complete LED: This green LED is on when POST is completed without
any errors.
Hard disk drive activity LED: This green LED flickers when there is activity on
a hard disk drive.
Information LED: When this amber LED is on, the server power supplies are
nonredundant, or some other noncritical event has occurred. The event is
Chapter 1. General information 7

recorded in the Error log. See “Viewing error logs from the Configuration/Setup
Utility program” on page 28 for instructions for viewing the Error log. Check the
diagnostic LED panel for more detailed information (see “Diagnostic panel
system error LED” on page 128.
System-error LED: This amber LED is on when a system error occurs. An LED
on the diagnostic LED panel will also be on to further isolate the error. (For
more information, see “Diagnostic panel system error LED” on page 128.)
Ethernet transmit/receive activity LED: When this green LED is on, there is
activity between the server and the network.
Server power features
This section contains information about how to properly turn your server on and off.
Turning on the server
Turning on the server refers to the act of plugging the power cords of your server
into the power source and starting the operating system.
You can turn on the server in any of the following ways:
vIf the power cords are connected to a power source, you can press the
power-control button on the front of the server.
Notes:
1. You can install a circular disk over the power-control button to prevent
accidental manual power-off. This disk, known as the power-control button
shield, comes with your server.
2. After you plug the power cords of your server into the electrical outlets, wait
approximately 20 seconds before pressing the power-control button. During
this time, the system-management adapter is initializing; therefore, the
power-control button does not respond.
vIf the server is turned on and a power failure occurs, the server will restart
automatically when power is restored.
vIf ac power is present, the server is in Standby mode, and the server is
connected to an ASM interconnect network which contains at least one system
with an optional Remote Supervisor Adapter installed, the server can be turned
on from the Remote Supervisor Adapter user interface.
vIf ac power is present, the server is in Standby mode, and an optional Remote
Supervisor Adapter is installed in the server, the server can be turned on from
the Remote Supervisor Adapter user interface.
vWhen you plug in your server for the first time, Wake on LAN
®
can turn on the
server.
vIf your server was previously turned on, it must be properly placed in Standby
mode for the Wake on LAN feature to turn on the server.
8xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide

Complete the following steps to manually turn on the server:
1. Review the information in “Safety information” on page 163.
2. Turn on all external devices, such as the monitor.
3. Plug the server power cords into the power source.
4. Press the power-control button on the front of the server.
Note: While the server is powering up, the power-on LED on the front of the
server is lit.
Turning off the server
Turning off the server refers to the act of disconnecting the server from the power
source.
Complete the following steps to manually turn off the server:
1. Review the information in “Safety information” on page 163.
2. See your operating system documentation for the proper procedure to shut
down the operating system.
Statement 5:
CAUTION:
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.
1
2
3. Press the power-control button on the front of the server. This will put the server
in Standby mode.
Note: You might need to press and hold the power-control button for more than
4 seconds to cause an immediate shutdown of the server and to force it
into Standby mode. You can use this feature if the operating system
stops functioning.
4. Disconnect the server from the power source.
Note: After disconnecting all the power cords, wait approximately 15 seconds
for your system to stop running. Watch for the power-on LED on the front
of the server to stop flashing.
Chapter 1. General information 9

Standby mode
Standby mode refers to the condition in which the server is connected to an ac
power source but the server operating system is not running and all core logic is
shut down except for the service processor. In Standby mode, the server can
respond to service processor requests, such as a remote request to turn on the
server. When the server is in Standby mode, the power-on LED on the front of the
server flashes (when the server is running, the power-on LED stays on and does
not flash).
You can put the server in Standby mode in any of the following ways:
vYou can press the power-control button on the server. This starts an orderly
shutdown of the operating system, if this feature is supported by your operating
system.
vIf the server is connected to an ASM interconnect network which contains at least
one system with an optional Remote Supervisor Adapter installed, the server can
be placed in Standby mode from the Remote Supervisor Adapter user interface.
vIf an optional Remote Supervisor Adapter is installed in the server, the server can
be placed in Standby mode from the Remote Supervisor Adapter user interface.
Attention: You must disconnect all the server power cords from the electrical
outlets to remove all power from the server.
Complete the following steps to put the server into Standby mode:
1. See the operating system documentation for the proper procedure to shut down
the operating system.
Note: Each operating system is different. Read all the documentation about
shutting down the operating system before continuing.
2. Press the power-control button on the front of the server.
Notes:
a. After you place the server in Standby mode, wait at least 5 seconds before
you turn on the server again.
b. You might need to press and hold the power-control button for more than 4
seconds to cause an immediate shutdown of the operating system and to
force it into Standby mode. You can use this feature if the operating system
stops functioning.
The ISMP can put the server in Standby mode as an automatic response to a
critical system failure. You can also put the server into Standby mode remotely by
means of an optional Remote Supervisor Adapter or through connection to an ASM
interconnect network.
10 xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide