IBM 8649 - Eserver xSeries 225 Operating instructions

IBM xSeries 225 Ty p es 8649
Hardware Maintenance Manual and
Troubleshooting Guide
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IBM xSeries 225 Ty p es 8649
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 173
The most recent version of this document is available at http://www.ibm.com/support on the World Wide Web.
Ninth Edition (February 2007)
©Copyright International Business Machines Corporation 2004. 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, aSymptom-to-FRU index, service
information, error codes, error messages, and configuration information for the IBM®
xSeries®225 Type 8649.
Important: The field replaceable unit (FRU) procedures are intended for trained
servicers who are familiar with IBM xSeries products. See Chapter 7, “Parts listing
Type 8649,” on page 121 to determine if the component being replaced is a
customer replaceable unit (CRU) or afield replaceable unit (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 129
Leia todas as instruções de cuidado eperigo 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.
Accertarsi di leggere tutti gli avvisi di attenzione edi pericolo prima di effettuare
qualsiasi operazione.
Lea atentamente todas las declaraciones de precaución ypeligro ante de llevar a
cabo cualquier operación.
WARNING: Handling the cord on this product or cords associated with accessories
sold with this product, will expose you to lead, achemical known to the State of
California to cause cancer, and birth defects or other reproductive harm. Wash
hands after handling.
ADVERTENCIA: El contacto con el cable de este producto ocon cables de
accesorios que se venden junto con este producto, pueden exponerle al plomo, un
elemento químico que en el estado de California de los Estados Unidos está
considerado como un causante de cancer yde defectos congénitos, además de
otros riesgos reproductivos. Lávese las manos después de usar el producto.
Online support
You can download the most current diagnostic, BIOS flash, and device driver files
from http://www.ibm.com/support on the World Wide Web.
©Copyright IBM Corp. 2004 iii

iv IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

Contents
About this manual ....................... iii
Important safety information .................... iii
Online support ......................... iii
Chapter 1. Introducing the IBM xSeries 225 Type 8649 server.......1
Related publications .......................1
Notices and statements used in this publication .............2
Features and specifications.....................3
Controls and indicators ......................4
Chapter 2. Configuring your server .................7
Using the Configuration/Setup Utility program ..............7
Starting the Configuration/Setup Utility program ............8
Configuration/Setup Utility menu choices ...............8
Passwords .........................10
Using the ServerGuide Setup and Installation CD ............11
ServerGuide features .....................11
Setup and configuration overview .................12
System Partition .......................13
Typical operating system installation ................13
Setting up or updating multiple servers ...............14
Installing your operating system without ServerGuide ..........14
Using the RAID Configuration programs................14
Using the LSI Logic Configuration Utility program ...........15
Using ServeRAID Manager ...................16
Configuring the Gigabit Ethernet controller ...............16
Chapter 3. Diagnostics .....................19
General checkout ........................19
Checkout procedure ......................20
Diagnostic tools overview .....................20
POST error codes and messages ..................21
Error logs ..........................21
Viewing error logs from the Configuration/Setup Utility program ......21
Viewing error logs from diagnostic programs .............22
ServerGuide error symptoms....................22
Small computer system interface messages ..............22
Diagnostic programs, error codes, and messages ............22
Text messages ........................24
Starting the diagnostic programs .................24
System-board error LEDs ....................26
Diagnostic error code tables ...................26
Recovering from aPOST/BIOS update failure .............27
Erasing alost or forgotten password (clearing CMOS) ..........28
Power checkout ........................29
Troubleshooting the Ethernet controller ................29
Network connection problems ..................29
Ethernet controller troubleshooting chart ..............30
Ethernet controller messages ..................31
Chapter 4. Installing options ...................33
Installation guidelines ......................33
System reliability considerations .................33
©Copyright IBM Corp. 2004 v

Handling static-sensitive devices .................34
Server power features ......................34
Turning on the server .....................34
Turning off the server .....................35
Removing the side cover .....................36
Removing the bezel .......................37
Removing and installing the support bracket ..............38
Working with adapters ......................39
Adapter considerations .....................39
Installing an adapter ......................40
Cabling an optional SCSI adapter .................43
Installing internal drives......................44
Internal drive bays ......................44
Working with hot-swap drives ..................46
Installing non-hot-swap hard disk drives...............48
Installing a5.25-inch removable-media drive .............51
Power and signal cables for internal drives .............54
Installing memory modules ....................55
Installing an additional microprocessor ................57
Configuring the operating system .................57
Installing the additional microprocessor ...............58
Installing asecurity rope clip ....................61
Replacing ahot-swap power supply .................62
Replacing the battery ......................64
Completing the option installation ..................66
Replacing the bezel ......................66
Replacing the side cover ....................67
Updating your server configuration.................67
Connecting external options ....................68
Installing the server in arack....................68
Input/output ports ........................69
Audio connectors .......................69
Auxiliary-device (pointing-device) connector .............70
Ethernet (RJ-45) connector ...................70
Keyboard connector ......................70
Parallel connector .......................70
Serial connectors .......................71
Ultra320 SCSI connector ....................71
Universal Serial Bus connectors .................72
Video connector .......................73
Chapter 5. Field replaceable units .................75
Power button .........................75
Microprocessor and heat sink ...................77
Thermal grease.........................78
Hot-swap hard disk drive cage ...................79
Hot-swap backplane .......................80
Non-hot swap power supply ....................81
Front fan ...........................83
Rear fans ...........................85
Mini-PCI video adapter ......................86
Removing the system board ....................89
System-board option connectors ..................91
System-board internal connectors ..................91
System-board external connectors..................92
System-board error LEDs .....................92
vi IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

CD-ROM drive .........................94
Diskette drive .........................95
Top/side cover .........................96
Bezel-release latch .......................97
Handle assembly ........................99
Rear-adapter retainer ...................... 100
Chapter 6. Symptom-to-FRU index ................ 101
Beep symptoms ........................ 101
No-beep symptoms ....................... 103
Diagnostic error codes ..................... 103
Error symptoms ........................ 106
Hot-swap power-supply LED errors ................. 109
POST error codes .......................110
Service processor error codes ...................114
SCSI error codes .......................114
Temperature error messages ...................114
Fan error messages ......................115
Power error messages......................115
System shutdown .......................116
Voltage related system shutdown .................116
Temperature related system shutdown ...............116
DASD checkout ........................117
Host built-in self test (BIST) ....................117
Bus fault messages.......................117
Undetermined problems .....................118
Problem determination tips ....................119
Chapter 7. Parts listing Type 8649 ................ 121
System replaceable units..................... 122
Keyboards (CRUs) ....................... 124
Power cords (CRUs) ...................... 125
Appendix A. Getting help and technical assistance .......... 127
Before you call ........................ 127
Using the documentation..................... 127
Getting help and information from the World Wide Web ......... 127
Software service and support ................... 128
Hardware service and support ................... 128
Appendix B. Related service information .............. 129
Safety information ....................... 129
General safety ....................... 129
Electrical safety ....................... 130
Safety inspection guide .................... 131
Handling electrostatic discharge-sensitive devices .......... 132
Grounding requirements .................... 132
Safety notices (multilingual translations) .............. 132
Appendix C. Notices ...................... 173
Edition notice ......................... 173
Trademarks.......................... 174
Important notes ........................ 174
Product recycling and disposal .................. 175
Battery return program ..................... 175
Electronic emission notices .................... 176
Contents vii

Federal Communications Commission (FCC) statement ........ 176
Industry Canada Class Aemission compliance statement ........ 176
Australia and New Zealand Class Astatement ............ 176
United Kingdom telecommunications safety requirement ........ 176
European Union EMC Directive conformance statement ........ 177
Taiwanese Class Awarning statement ............... 177
Chinese Class Awarning statement ................ 177
Japanese Voluntary Control Council for Interference (VCCI) statement 177
Index ............................ 179
viii IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

Chapter 1. Introducing the IBM xSeries 225 Type 8649 server
The IBM xSeries 225 Type 8649 server is ahigh-performance server based on IBM
X-Architecture™technologies. It can be upgraded to asymmetric multiprocessing
(SMP) server through amicroprocessor upgrade. It is ideally suited for networking
environments that require superior microprocessor performance, efficient memory
management, flexibility, and large amounts of reliable data storage.
Performance, ease of use, reliability, and expansion capabilities were key
considerations in the design of your server. These design features make it possible
for you to customize the system hardware to meet your needs today and provide
flexible expansion capabilities for the future.
Your server comes with alimited warranty. For more information about the terms of
your warranty, see the Installation Guide.
Your server contains IBM Enterprise X-Architecture technologies, which help
increase performance and reliability. For more information, see “Features and
specifications” on page 3.
For service or assistance information, see Appendix A, “Getting help and technical
assistance,” on page 127.
Note: The illustrations in this document might differ slightly from your hardware.
Related publications
This Hardware Maintenance Manual and Troubleshooting Guide contains
information to help you solve the problem yourself or to provide helpful information
to aservice technician.
In addition to this Hardware Maintenance Manual and Troubleshooting Guide,the
following documentation is provided with your server:
vInstallation Guide
This printed publication contains setup and installation instructions.
vUser’s Guide
This document provides general information about your server, including
information about features, how to configure the server, how to use the
ServerGuide™Setup and Installation CD, and how to get help.
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. 2004 1

Your server might have features that are not described in the documentation that
you received with the server. The documentation might be updated occasionally to
include information about those features, or technical updates might be available to
provide additional information that is not included in your server documentation.
These updates are available from the IBM Web site. Complete the following steps
to check for updated documentation and technical updates:
1. Go to http://www.ibm.com/support/.
2. In the Learn section, click Online publications.
3. On the ″Online publications″page, in the Brand field, select Servers.
4. In the Family field, select xSeries 225.
5. Click Display documents.
Notices and statements used in this publication
The caution and danger statements that appear in this publication are also in the
multilingual Safety Information book, which is on the IBM xSeries Documentation
CD. Each statement is numbered for reference to the corresponding statement in
the Safety Information book.
The following notices and statements are used in the documentation:
vNotes: 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 potential 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. Acaution statement is placed just before the description of apotentially
hazardous procedure step or situation.
vDanger: These statements indicate situations that can be potentially lethal or
extremely hazardous to you. Adanger statement is placed just before the
description of apotentially lethal or extremely hazardous procedure step or
situation.
2IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

Features and specifications
The following table provides asummary of the features and specifications of your
server. Depending on your server model, some features might not be available, or
some specifications might not apply.
You can use the Configuration/Setup Utility program in your server to determine the
specific type of microprocessor that is on the system board.
Table 1. Features and specifications
Microprocessor:
vIntel®Xeon Processor
v512 KB Level-2 cache
v400 MHz or 533 MHz front-side bus
(FSB)
vSupport for up to two
microprocessors
Memory:
vMinimum: 256 MB
vMaximum: 8GB
vType: PC2100, double-data-rate
(DDR)
vConnectors: four dual inline memory
module (DIMM) connectors, two-way
interleaved
Drives standard:
vDiskette: 1.44 MB (two mode)
vCD-ROM: IDE
Expansion bays:
vSix open hot-swap, slim-high,
3.5-inch drive bays (some models)
vFour slim-high, 3.5-inch drive bays
with one hard disk drive installed
(some models)
vTwo 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:
vFour PCI-X 100 MHz/64-bit
vOne PCI 33 MHz/32-bit
Cooling:
Three speed-controlled fans
Upgradeable microcode:
BIOS upgrades (when available) can
update EEPROMs on the system board
Integrated functions:
vSupport for IBM Remote Supervisor
Adapter
vBroadcom 5703 10/100/1000 Ethernet
controller on the system board with
RJ-45 Ethernet port
vTwo serial ports
vOne parallel port
vIntegrated SCSI controller with RAID
capabilities and two Ultra320 SCSI
ports (one internal, one optional
external)
vFour Universal Serial Bus (USB) v2.0
ports (two on front and two on rear of
enclosure)
vKeyboard port
vMouse port
vAudio ports (rear)
–Line out
–Mic
–Line in
vATA-100 dual-channel IDE controller
vATI Rage XL video (mini-PCI)
–Compatible with SVGA and VGA
–8MB video memory
Error LEDs:
vFans
vMemory
vMicroprocessors
Power supplies:
vHot-swap (some models)
Standard: Two 350 watt output (115-230
Vac) for redundancy
vNon-hot-swap (some models)
Standard: One 425 watt output (115-230
Vac)
Electrical input:
vSine-wave input (50 or 60 Hz) required
vInput voltage and frequency ranges
automatically selected
vInput voltage low range:
–Minimum: 100 Vac
–Maximum: 127 Vac
vInput voltage high range:
–Minimum: 200 Vac
–Maximum: 240 Vac
v
Input kilovolt-amperes (kVA) approximately:
–Minimum: 0.15 kVA (all models)
–Maximum: 0.80 kVA with standard power
supply, 0.62 kVA with optional redundant
hot-swap power supplies
Heat output:
Approximate heat output in British thermal
units (Btu) per hour
vMinimum configuration: 341 Btu/hour (100
watts)
vMaximum configuration: 2455 Btu/hour (720
watts) with standard power supply, 1910
Btu/hour (560 watts) with optional redundant
hot-swap power supplies
Environment:
vAir temperature:
–Server on: 10° to 35°C (50° to 95°F)
Altitude: 0to 2134 m(7000 ft)
–Server off: -40° to +60°C (-40° to 140°F)
Maximum altitude: 2134 m(7000 ft)
vHumidity (operating and storage): 8% to
80%
Acoustical noise emissions:
vSound power, idle: 5.3 bel maximum
vSound power, operating: 5.6 bel maximum
Size:
vHeight: 440 mm (18.4 in.)
vDepth: 660 mm (26 in.)
vWidth: 217 mm (6.5 in.)
vWeight: 20 kg (44 lb) to 25.8 kg (57 lb)
depending upon configuration
Chapter 1. Introducing the IBM xSeries 225 Type 8649 server 3

Controls and indicators
CD-eject
button
CD-ROM drive
activity LED
Ethernet link
status LED
Ethernet
transmit/receive
activity LED
Diskette-eject
button
Hard disk drive
activity LED
Power-on
LED
Power-control
button
System error
LED
Diskette drive
activity LED
CD-eject button
Press this button to release aCD from the CD-ROM drive.
CD-ROM drive activity LED
When this LED is lit, it indicates that the CD-ROM drive is in use.
Diskette-eject button
Press this button to release adiskette from the diskette drive.
Diskette drive activity LED
When this LED is lit, it indicates that the diskette drive is in use.
Hard disk drive activity LED
When this LED is flashing, it indicates that ahard disk drive is in use.
Power-on LED
When this LED is lit, it indicates that the server is turned on.
Power-control button
Press this button to turn the server on and off manually. You can install a
circular disk, called the power-control button shield, over the power-control
button to prevent accidental manual power-off. This disk is provided with
your server.
System error LED
When this LED is lit, it indicates that asystem error has occurred. An LED
on the system board might also be lit to help isolate the error. Detailed
troubleshooting information is in Chapter 6, “Symptom-to-FRU index,” on
page 101
Ethernet transmit/receive activity LED
This LED is on the Ethernet connector on the back of the server. When this
LED is lit, it indicates that there is activity between the server and the
network.
4IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

Ethernet link status LED
This LED is on the Ethernet connector on the back of the server. When this
LED is lit, it indicates that there is an active connection on the Ethernet
port.
Chapter 1. Introducing the IBM xSeries 225 Type 8649 server 5

6IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

Chapter 2. Configuring your server
The following configuration programs are provided with your server:
vConfiguration/Setup Utility
This is part of the basic input/output system (BIOS) code in your server. Use it to
configure serial port assignments, change interrupt request (IRQ) settings,
change the startup-device sequence, set the date and time, and set passwords.
For information about using this utility program, see “Using the
Configuration/Setup Utility program.”
vIBM ServerGuide Setup and Installation CD
This provides software-setup tools and installation tools that are designed for
your server. Use this CD during the installation of your server to configure basic
hardware features. For information about using this CD, see “Using the
ServerGuide Setup and Installation CD” on page 11.
vLSI Logic Configuration Utility
Use this to configure the integrated SCSI controller with RAID capabilities and
the devices that are attached to it. For information about using this utility
program, see “Using the LSI Logic Configuration Utility program” on page 15.
vServeRAID Manager
ServeRAID™Manager is available as astand-alone program and as an IBM
Director extension. If aServeRAID adapter is installed in your server or if you are
using the RAID capabilities of the SCSI controller, use ServeRAID Manager to
define and configure your disk-array subsystem before you install the operating
system. For information about using this program, see “Using ServeRAID
Manager” on page 16.
vEthernet controller configuration process
For information about configuring the Ethernet controller, see “Configuring the
Gigabit Ethernet controller” on page 16.
Using the Configuration/Setup Utility program
Use the Configuration/Setup Utility program to:
vView configuration information
vView and change assignments for devices and I/O ports
vSet the date and time
vSet and change passwords and Remote Control Security settings
vSet the startup characteristics of the server and the order of startup devices
vSet and change settings for advanced hardware features
vView and clear error logs
©Copyright IBM Corp. 2004 7

Starting the Configuration/Setup Utility program
Complete the following steps to start the Configuration/Setup Utility program:
1. Turn on the server.
2. When the prompt Press F1 for Configuration/Setup appears, press F1. If you
have set both apower-on password and an administrator password, you must
type the administrator password to access the full Configuration/Setup Utility
menu. If you do not type the administrator password, alimited
Configuration/Setup Utility menu is available.
3. Select settings to view or change.
Configuration/Setup Utility menu choices
The following choices are on the Configuration/Setup Utility main menu. Depending
on the version of the BIOS code in your server, some menu choices might differ
slightly from these descriptions.
vSystem Summary
Select this choice to view configuration information, including the type, speed,
and cache sizes of the microprocessors and the amount of installed memory.
When you make configuration changes through other options in the
Configuration/Setup Utility program, the changes are reflected in the system
summary; you cannot change settings directly in the system summary.
This choice is on the full and limited Configuration/Setup Utility menu.
vSystem Information
Select this choice to view information about your server. When you make
changes through other options in the Configuration/Setup Utility program, some
of those changes are reflected in the system information; you cannot change
settings directly in the system information.
This choice is on the full Configuration/Setup Utility menu only.
–Product Data
Select this choice to view the machine type and model of your server, the
serial number, and the revision level or issue date of the BIOS and
diagnostics code stored in electrically erasable programmable ROM
(EEPROM).
–System Card Data
Select this choice to view information about the system board.
v
Devices and I/O Ports
Select this choice to view or change assignments for devices and input/output
(I/O) ports.
Select this choice to enable or disable integrated SCSI and Ethernet controllers
and all standard ports (such as serial and parallel). Enable is the default setting
for all controllers. If you disable adevice, it cannot be configured, and the
operating system will not be able to detect it (this is equivalent to disconnecting
the device). If you disable the integrated SCSI controller and no SCSI adapter is
installed, the server will have no SCSI capability. If you disable the integrated
Ethernet controller and no Ethernet adapter is installed, the server will have no
Ethernet capability.
This choice is on the full Configuration/Setup Utility menu only.
vDate and Time
Select this choice to set the date and time in the server, in 24-hour format
(hour:minute:second).
vSystem Security
8IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

Select this choice to set passwords. See “Passwords” on page 10 for more
information about passwords. You can also enable the chassis-intrusion detector
to alert you each time the server cover is removed.
–Power-on Password
Select this choice to set or change apower-on password. See “Power-on
password” on page 11 for more information.
–Administrator Password
Select this choice to set or change an administrator password. An
administrator password is intended to be used by asystem administrator; it
limits access to the full Configuration/Setup Utility menu. If an administrator
password is set, the full Configuration/Setup Utility menu is available only if
you type the administrator password at the password prompt. See
“Administrator password” on page 11 for more information.
v
Start Options
Select this choice to view or change the start options. Changes in the start
options take effect when you restart the server.
You can set keyboard operating characteristics, such as the keyboard speed, and
you can specify whether the server starts with the keyboard number lock on or
off. You can enable the server to run without adiskette drive, monitor, or
keyboard.
The startup sequence specifies the order in which the server checks devices to
find aboot record. The server starts from the first boot record that it finds. If your
server has Wake on LAN®hardware and software and the operating system
supports Wake on LAN functions, you can specify astartup sequence for the
Wake on LAN functions. You can also specify whether the integrated SCSI
controller or aPCI SCSI adapter has boot precedence.
If you enable the boot fail count, the BIOS default settings will be restored after
three consecutive failures to find aboot record.
You can enable avirus-detection test that checks for changes in the boot record
when the server starts.
vAdvanced Setup
Select this choice to change settings for advanced hardware features.
Important: The server might malfunction if these options are incorrectly
configured. Follow the instructions on the screen carefully.
–Power Management Setup
Select this choice to enable or disable system power settings. This includes
automatic power-on settings such as the Wake on LAN feature.
–Chipset Feature
Select this choice to modify settings that control features of the core chip set
on the system board.
Attention: Do not make changes in the Chipset Feature option unless
directed to do so by an IBM authorized service representative.
–Processor Control
Select this choice to enable or disable the microprocessor cache and
hyper-threading. The default status for hyperthreading is Enabled.
Attention: Do not make changes in the Processor Control option unless
directed to do so by an IBM authorized service representative.
vPC Health Status
Chapter 2. Configuring your server 9

Select this choice to display the server temperature and voltage status, and fan
speeds.
vError Logs
Select POST Error Log to view the three most recent error codes and messages
that the system generated during POST.
Select Clear event/error logs from the POST Error Log menu to clear the
POST Error Log.
vSave Settings
Select this choice to save the changes you have made in the settings.
vRestore Settings
Select this choice to cancel the changes you have made in the settings and
restore the previous settings.
vLoad Default Settings
Select this choice to cancel the changes you have made in the settings and
restore the factory settings.
vExit Setup
Select this choice to exit from the Configuration/Setup Utility program. If you have
not saved the changes you have made in the settings, you are asked whether
you want to save the changes or exit without saving them.
Passwords
From the System Security choice, you can set, change, and delete apower-on
password and an administrator password. The System Security choice is on the
full Configuration/Setup menu only.
If you set only apower-on password, you must type the power-on password to
complete the system startup, and you have access to the full Configuration/Setup
Utility menu.
An administrator password is intended to be used by asystem administrator; it
limits access to the full Configuration/Setup Utility menu. If you set only an
administrator password, you do not have to type apassword to complete the
system startup, but you must type the administrator password to access the
Configuration/Setup Utility menu.
If you set apower-on password for auser and an administrator password for a
system administrator, you can type either password to complete the system startup.
Asystem administrator who types the administrator password has access to the full
Configuration/Setup Utility menu; the system administrator can give the user
authority to set, change, and delete the power-on password. Auser who types the
power-on password has access to only the limited Configuration/Setup Utility menu;
the user can set, change, and delete the power-on password, if the system
administrator has given the user that authority.
If you forget the power-on password, you can regain access to the server in any of
the following ways:
vIf you have forgotten the user password and an administrator password is set,
type the administrator password at the power-on prompt. Start the
Configuration/Setup Utility program and change the user password.
CAUTION:
Before changing any switch settings or moving any jumpers, turn off the
server; then, disconnect all power cords and external cables.
10 IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide