IBM 866251Y - Netfinity 5500 M20 Owner's manual

S37L-2020-01
IBM Netfinity Servers
IBM Netfinity 5500 M20 - Type 8662
Models 31Y, 3RY, 41Y, 4RY, 51Y, 52G, 5RY, 61G,
61Y, 6RY
Hardware Maintenance Manual
June 1999
We Want Your Comments!
(Please see page 372)

S37L-2020-01
IBM Netfinity Servers
IBM Netfinity 5500 M20 - Type 8662
Models 31Y, 3RY, 41Y, 4RY, 51Y, 52G, 5RY, 61G,
61Y, 6RY
Hardware Maintenance Manual
June 1999
We Want Your Comments!
(Please see page 372)
IBM

Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 376.
Second Edition (June 1999)
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 1997, 1999. All rights reserved.
Note to U.S. Government users–Documentation related to
Restricted rights–Use, duplication, or disclosure is subject
to restrictions set forth in GSA ADP Schedule Contract
with IBM Corp.
ii Netfinity Server HMM

About this supplement
This supplement contains diagnostic information,
Symptom-to-FRU Indexes, service information, error
codes, error messages, and configuration information for
the Netfinity 5500 M20 - Type 8662.
Important
This manual is intended for trained servicers who are
familiar with IBM PC Server products.
Important safety information
Be sure to read all caution and danger statements in this
book before performing any of the instructions.
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.
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
Use the World Wide Web (WWW) or the IBM PC
Company BBS to download Diagnostic, BIOS Flash, and
Device Driver files.
File download address is:
http://www.ibm.com/pc/files.html
The IBM PC Company BBS can be reached at (919)
517-0001.
IBM online addresses:
The HMM manuals online address is:
http://www.ibm.com/pc/us/cdt/hmm.html
The IBM PC Company Support Page is:
http://www.ibm.com/support/
The IBM PC Company Home Page is:
http://www.ibm.com/pc/
iv Netfinity Server HMM

Contents
About this supplement ............... iii
Important safety information .......... iii
Online support . . . . . . . . . . . . . . . . . iv
Netfinity 5500 M20 - Type 8662 .......... 1
General checkout . . . . . . . . . . . . . . . . . 8
Diagnostic tools . . . . . . . . . . . . . . . . . . 11
Features . . . . . . . . . . . . . . . . . . . . . 17
Configuring the server ............... 19
Additional service information ........... 44
ServeRAID system board controller ........ 66
Locations/Removals . . . . . . . . . . . . . . . 160
Symptom-to-FRU index . . . . . . . . . . . . . 285
Undetermined problems . . . . . . . . . . . . . 325
Parts listing (Type 8662) ............ 327
Related service information .......... 339
Safety information . . . . . . . . . . . . . . . . 340
Laser compliance statement ........... 369
Send us your comments! ............ 372
Problem determination tips ........... 373
Phone numbers, U.S. and Canada ........ 374
Notices . . . . . . . . . . . . . . . . . . . . . 376
Trademarks . . . . . . . . . . . . . . . . . . 376
 Copyright IBM Corp. 1999 v

vi Netfinity Server HMM

Netfinity 5500 M20 - Type 8662
General checkout . . . . . . . . . . . . . . . . . 8
Diagnostic tools . . . . . . . . . . . . . . . . . . 11
Diagnostic programs . . . . . . . . . . . . . . 11
Power-on self-test (POST) ........... 11
POST beep codes ............... 12
Error messages - descriptions ......... 12
POST error messages ........... 13
Diagnostic error messages ......... 13
Software-generated error messages ..... 13
System error log ................ 13
Option diskettes . . . . . . . . . . . . . . . . 13
Running diagnostic programs .......... 14
Viewing the test log .............. 16
Features . . . . . . . . . . . . . . . . . . . . . 17
Configuring the server ............... 19
Configuration overview . . . . . . . . . . . . . 20
Configuration/Setup Utility program ....... 21
Configuration/Setup Utility main menu ...... 22
System summary . . . . . . . . . . . . . . 23
System information . . . . . . . . . . . . . 23
Product data . . . . . . . . . . . . . . 23
System card data ............ 23
PCI routing . . . . . . . . . . . . . . . 23
Devices and I/O ports ............ 24
Date and time ............... 25
System security . . . . . . . . . . . . . . 25
Using the power-on password menu . . . 26
Using the Administrator Password menu . 28
Start options . . . . . . . . . . . . . . . . 29
Advanced setup . . . . . . . . . . . . . . 29
Core chip set control .......... 29
Cache control . . . . . . . . . . . . . . 29
PCI bus control ............. 30
Memory settings . . . . . . . . . . . . . 30
Advanced ISA settings .......... 30
Virtual wire mode selection ........ 30
Plug and Play ............... 31
Error logs . . . . . . . . . . . . . . . . . 31
POST error log ............. 31
System error log ............ 31
Save settings . . . . . . . . . . . . . . . . 32
Restore settings . . . . . . . . . . . . . . 32
Load default settings ............ 32
Exit setup . . . . . . . . . . . . . . . . . 32
Configuring options . . . . . . . . . . . . . . 32
Configuring ISA and PCI adapters ....... 33
Resolving configuration conflicts ........ 33
Resolving hardware configuration conflicts . . 34
Resolving software configuration conflicts . . 34
Configuring the ethernet controller ....... 35
Ethernet cable specifications .......... 36
 Copyright IBM Corp. 1999 1

Ethernet connection problems ......... 39
Failover for redundant Ethernet ......... 40
Special considerations when combining failover
and hot-plug functions ........... 40
Configuring for failover ........... 41
OS/2 . . . . . . . . . . . . . . . . . . 41
Windows NT . . . . . . . . . . . . . . 41
IntraNetWare . . . . . . . . . . . . . . 42
Additional service information ........... 44
Bypassing an unknown power-on password . . . 45
Ethernet subsystem error messages ...... 45
RPL-related error messages ......... 45
Light path diagnostics ............. 48
Netfinity Advanced System Management Processor 52
System requirements for the Advanced System
Management Service with Netfinity Manager 53
Accessing the Netfinity Advanced System
Management Processor without Netfinity
Manager . . . . . . . . . . . . . . . . . 53
System power menu selections ...... 56
Boot menu selections .......... 57
Using remote video mode to monitor and
access POST . . . . . . . . . . . . . 58
Software installation . . . . . . . . . . . . . . 60
Specifications . . . . . . . . . . . . . . . . . 61
Status LEDs . . . . . . . . . . . . . . . . . . 63
Using the ServeRAID Advanced Configuration
Functions . . . . . . . . . . . . . . . . . . 63
Setting the BootCd feature ......... 64
ServeRAID system board controller ........ 66
Understanding RAID technology ........ 67
Interleave depth and stripe-unit size ..... 67
Supported RAID levels ........... 67
RAID level-0 . . . . . . . . . . . . . . 68
RAID level-1 . . . . . . . . . . . . . . 69
Enhanced RAID level-1 ......... 69
RAID level-5 . . . . . . . . . . . . . . 70
ServeRAID Configuration Program ....... 70
Starting the configuration program ...... 72
Configuration mode . . . . . . . . . . . . . 73
Learning about custom configuration ..... 75
Using custom configuration ......... 76
Information mode . . . . . . . . . . . . . . 78
Logical drive state descriptions ....... 82
Physical drive state descriptions ....... 83
Changing the ServeRAID configuration settings 84
Tool bar . . . . . . . . . . . . . . . . . . 85
Menu bar . . . . . . . . . . . . . . . . . 86
ServeRAID Mini-Configuration Program ..... 94
Viewing the controller status ......... 94
Viewing the configuration .......... 95
Advanced Configuration Functions ...... 96
Setting the bootable CD-ROM feature .... 97
ServeRAID Administration and Monitoring Program 98
2Netfinity Server HMM

Starting the ServeRAID Administration and
Monitoring Program . . . . . . . . . . . . 98
Options pull-down menu ......... 100
Network settings . . . . . . . . . . . . . 100
General options . . . . . . . . . . . . 101
Enabling or disabling the alarm ..... 101
Resetting the alarm .......... 101
Polling options . . . . . . . . . . . . 102
Alert options . . . . . . . . . . . . . . . 102
ServeRAID administration functions ...... 103
Array administration . . . . . . . . . . . 103
Creating disk arrays .......... 103
Deleting disk arrays .......... 105
Logical drive administration ........ 106
Creating logical drives ......... 106
Initializing logical drives ........ 107
Synchronizing logical drives ...... 108
Unblocking logical drives ........ 108
Logical drive migration administration . . . 109
Change RAID levels .......... 109
Adding a physical drive ........ 110
Physical device administration ....... 112
Setting physical device states ..... 112
Rebuilding a device .......... 112
Adapter administration . . . . . . . . . . 113
Copying the drive configuration to the
adapter . . . . . . . . . . . . . . . 113
Copying the adapter configuration to the
drives . . . . . . . . . . . . . . . . 114
Initializing the adapter ......... 114
Scanning for new drives ........ 115
ServeRAID monitoring functions ....... 115
Monitoring adapter status information . . . 115
Monitoring the device event logs ...... 117
Monitoring the logical drive information . . . 117
Monitoring the physical device information . 118
ServeRAID IPSSEND program (starting) . . . 119
ServeRAID IPSSEND program (using) .... 119
ServeRAID server roll-out commands . . . 120
ServeRAID error-recovery commands . . . 122
ServeRAID problem-isolation and debug
commands . . . . . . . . . . . . . . . 124
RAID configuration commands ...... 127
ServeRAID IPSMON program (starting) .... 128
ServeRAID IPSMON program (using) ..... 128
ServeRAID device drivers and utility programs
(installation) . . . . . . . . . . . . . . . . 130
IBM ServeRAID utility programs ...... 130
Obtaining ServeRAID updates ..... 130
Administration and Monitoring Program .... 130
ServeRAID programs for Windows NT and
Windows 95 . . . . . . . . . . . . . . . . 131
ServeRAID background-server components . . 131
ServeRAID programs for OS/2 and NetWare . 132
Netfinity 5500 M20 - Type 8662 3

ServerRAID programs for OpenServer and
UnixWare . . . . . . . . . . . . . . . . . 132
Installing the ServeRAID WIN32-based program 133
Installing ServeRAID device drivers ...... 134
Installing ServerRAID device drivers for
Windows NT . . . . . . . . . . . . . . 134
Installing the files while installing Windows
NT . . . . . . . . . . . . . . . . . 135
Installing the files after installing Windows
NT . . . . . . . . . . . . . . . . . 135
Installing ServeRAID device drivers for
NetWare . . . . . . . . . . . . . . . . 136
Installing the files while installing NetWare
3.12 . . . . . . . . . . . . . . . . . 136
Installing the files after installing NetWare
3.12 . . . . . . . . . . . . . . . . . 137
Installing the files while installing NetWare
4.1X . . . . . . . . . . . . . . . . 138
Installing the files after installing NetWare
4.1X . . . . . . . . . . . . . . . . 138
Installing ServerRAID device drivers for OS/2 140
Installing the files while installing OS/2 . 140
Installing the files after installing OS/2 . 141
Starting the Administration and Monitoring
Program . . . . . . . . . . . . . . . 143
Installing ServerRAID device drivers for
OpenServer . . . . . . . . . . . . . . 143
Installing the files for OpenServer . . . 144
Adding BTLD at boot time ....... 144
Adding BTLD after the initial installation . 145
Using an IDE CD-ROM drive to install
OpenServer files . . . . . . . . . . . 145
Installing the files for OpenServer 5.0.0 . . 145
Installing the files for OpenServer 5.0.2 and
5.0.4 . . . . . . . . . . . . . . . . 146
Installing ServeRAID device drivers for
UnixWare . . . . . . . . . . . . . . . . 146
Installing UnixWare on a ServeRAID drive 147
Installing UnixWare on a non-ServeRAID
drive . . . . . . . . . . . . . . . . 149
Installing the files while installing UnixWare 150
Installing the files after installing UnixWare 151
Installing an HBA diskette file using Pkgadd 151
Installing an HBA diskette file using
SCOAdmin . . . . . . . . . . . . . 151
Starting the ServeRAID background-server
components . . . . . . . . . . . . . . . . 151
ServerRAID background-server components . . 152
Command-line parameters . . . . . . . . 152
Logging messages . . . . . . . . . . . . 153
Background-server component security . . 153
Background-server component name resolution 154
IPSSEND and IPSMON programs ...... 154
4Netfinity Server HMM

Installing IPSSEND and IPSMON for OS/2,
Windows NT, or NetWare ........ 155
Installing IPSSEND and IPSMON for
OpenServer . . . . . . . . . . . . . . 156
Installing IPSSEND and IPSMON for UnixWare 157
Installing IPSSEND for DOS ........ 157
Rebuilding a defunct drive .......... 157
Guidelines for the rebuild operation .... 158
General information about the rebuild operation 158
Automatically rebuilding the defunct drive . 158
Locations/Removals . . . . . . . . . . . . . . . 160
Adapters . . . . . . . . . . . . . . . . . . 161
LEDs for hot-plug PCI slots ........ 162
Adapter considerations . . . . . . . . . . 163
Plug and Play technology ......... 164
Plug and Play adapters ........ 164
Legacy adapters . . . . . . . . . . . 164
Configuration/Setup Utility program . . . 164
Enabling hot-plug PCI support ....... 165
Hot-plug PCI adapter installation ...... 165
Non-hot-plug adapter installation ...... 169
Verifying compatibility between network
adapters and device drivers ....... 171
Battery replacement . . . . . . . . . . . . . 173
Changing jumper positions .......... 176
Two-pin jumper blocks .......... 176
Three-pin jumper blocks ......... 177
Completing the installation .......... 178
Installing the top cover .......... 178
Installing the trim bezels and server door . . 179
Reconfiguring the server ......... 180
Controls and indicators ............ 181
CD-ROM drive . . . . . . . . . . . . . . . . 184
Handling a CD .............. 184
Loading a CD .............. 184
DASD backplane removal .......... 186
Diagnostics panel LEDs ........... 187
External options . . . . . . . . . . . . . . . 188
Connecting external SCSI devices ..... 188
Cabling requirements . . . . . . . . . 188
Setting SCSI IDs for external devices . . 188
Installation procedure . . . . . . . . . 188
Input/output ports and connectors ..... 188
Serial ports . . . . . . . . . . . . . . 189
Management port C .......... 190
Parallel port . . . . . . . . . . . . . . 190
Video port . . . . . . . . . . . . . . 191
Keyboard and auxiliary-device ports . . 191
SCSI port . . . . . . . . . . . . . . . 192
Ethernet port . . . . . . . . . . . . . 193
Universal serial bus ports ....... 193
RS-485 port . . . . . . . . . . . . . . 194
Front bezel removal ............. 195
Hot-swap power supply installation ...... 196
Netfinity 5500 M20 - Type 8662 5

Hot-swap power supply removal ....... 200
Hot-swap fan assembly replacement ..... 202
Information LED panel ............ 205
Information LED panel cover removal ..... 207
Information LED panel assembly removal . . . 208
Input/output connectors and expansion slots . . 209
Interior LED and speaker assembly ...... 212
Internal drives installation .......... 213
Internal drive bays ............ 213
SCSI drives . . . . . . . . . . . . . . . 214
SCSI IDs . . . . . . . . . . . . . . . 215
Termination (internal SCSI devices) . . 216
Preinstallation steps (all bays) ....... 216
Installing a 5.25-inch removable-media drive 217
Installing a drive in a hot-swap bay .... 220
Replacing a drive in a hot-swap bay .... 221
Installing devices in the NetBAY3 ....... 225
General considerations . . . . . . . . . . 225
Removing the rear panel ......... 225
Installing devices on side rails ....... 226
Removing cage nuts ........... 227
Installing cage nuts ............ 227
Installing cantilevered devices ....... 228
Installing devices on the NetBAY3 base plate 229
Memory board component locations ...... 230
Memory board jumpers ............ 231
Memory board removal ............ 232
Memory modules . . . . . . . . . . . . . . 234
Microprocessor installation . . . . . . . . . . 238
Preparing to install options .......... 246
Power backplane removal .......... 249
Power supplies . . . . . . . . . . . . . . . 250
Power supply LEDs ............. 251
Power supply filler panel ........... 252
NetBAY3 bezel installation .......... 253
Processor board component locations ..... 254
Processor board jumpers ........... 255
Processor board removal ........... 257
Processor support tray removal ........ 259
Processor support tray installation ...... 261
Rack installation . . . . . . . . . . . . . . . 262
Installing and removing the server ..... 262
Preparing the rack ........... 263
Installing the server in the rack ..... 267
Removing the server from a rack .... 270
SCSI backplane component locations ..... 273
SCSI backplane option jumpers ........ 274
Server cabling . . . . . . . . . . . . . . . . 275
Server door and trim bezels removal ..... 276
Shuttle removal . . . . . . . . . . . . . . . 277
Side cover(s) removal ............ 278
System board component locations ...... 279
System board jumpers ............ 280
System board removal ............ 282
6Netfinity Server HMM

Top cover removal .............. 284
Symptom-to-FRU index . . . . . . . . . . . . . 285
Beep symptoms . . . . . . . . . . . . . . . 286
No beep symptoms ............. 288
Information panel system error LED ...... 290
Diagnostic error codes ............ 293
Error symptoms . . . . . . . . . . . . . . . 300
Power supply LED errors ........... 301
POST error codes .............. 304
SCSI error codes .............. 311
ServeRAID controller error codes/messages . . 312
ServeRAID POST error codes ........ 314
ServeRAID POST error procedures ...... 314
ServeRAID Startup Messages ........ 318
Undetermined problems . . . . . . . . . . . . . 325
Parts listing (Type 8662) ............ 327
System . . . . . . . . . . . . . . . . . . . 329
Keyboards . . . . . . . . . . . . . . . . . 335
Power cords . . . . . . . . . . . . . . . . . 337
Netfinity 5500 M20 - Type 8662 7

General checkout
The server diagnostic programs are stored in upgradable
read-only memory (ROM) on the system board. These
programs are the primary method of testing the major
components of the server: the system board, Ethernet
controller, video controller, RAM, keyboard, mouse
(pointing device), diskette drive, serial port, and parallel
port. You can also use them to test some external
devices. See “Diagnostic programs” on page 11.
Also, if you cannot determine whether a problem is caused
by the hardware or by the software, you can run the
diagnostic programs to confirm that the hardware is
working properly.
When you run the diagnostic programs, a single problem
might cause several error messages. When this occurs,
work to correct the cause of the first error message. After
the cause of the first error message is corrected, the other
error messages might not occur the next time you run the
test.
A failed system might be part of a shared DASD cluster
(two or more systems sharing the same external storage
device(s)). Prior to running diagnostics, verify that the
failing system is not part of a shared DASD cluster.
A system might be part of a cluster if:
The customer identifies the system as part of a
cluster.
One or more external storage units are attached to
the system and at least one of the attached storage
units is additionally attached to another system or
unidentifiable source.
One or more systems are located near the failing
system.
If the failing system is suspect to be part of a shared
DASD cluster, all diagnostic tests can be run except
diagnostic tests which tests the storage unit (DASD
residing in the storage unit) or the storage adapter
attached to the storage unit.
8Netfinity Server HMM

Notes
1. For systems that are part of a shared DASD
cluster, run one test at a time in looped mode.
Do not run all tests in looped mode, as this could
enable the DASD diagnostic tests.
2. If multiple error codes are displayed, diagnose
the first error code displayed.
3. If the computer hangs with a POST error, go to
the “Symptom-to-FRU index” on page 285.
4. If the computer hangs and no error is displayed,
go to “Undetermined problems” on page 325.
5. Power Supply problems, see “Symptom-to-FRU
index” on page 285.
6. Safety information, see “Safety information” on
page 340.
7. For intermittent problems, check the error log;
see, “Error logs” on page 31.
001
IS THE SYSTEM PART OF A CLUSTER?
Yes No
002
Go to Step 004.
003
Schedule maintenance with the customer. Shut down all
systems related to the cluster. Run storage test.
004
– Power-off the computer and all external devices.
– Check all cables and power cords.
– Set all display controls to the middle position.
– Power-on all external devices.
– Power-on the computer.
– Record any POST error messages displayed on the
screen. If an error is displayed, look up the first error in
the “Symptom-to-FRU index” on page 285.
– Check the information LED panel System Error LED; if
on, see “Information panel system error LED” on
page 290.
– Check the System Error Log. If an error was recorded
by the system, see “Symptom-to-FRU index” on
page 285.
– Start the Diagnostic Programs. See “Running diagnostic
programs” on page 14.
– Check for the following responses:
1. One beep.
(Step 004 continues)
Netfinity 5500 M20 - Type 8662 9

(CONTINUED)
004 (continued)
2. Readable instructions or the Main Menu.
DID YOU RECEIVE BOTH OF THE CORRECT
RESPONSES?
Yes No
005
Find the failure symptom in “Symptom-to-FRU index”
on page 285. Or, use remote video mode to
monitor and access POST or to look at the System
Error Log. See “Using remote video mode to monitor
and access POST” on page 58.
006
– Run the Diagnostic Programs. If necessary, refer to
“Running diagnostic programs” on page 14.
If you receive an error, go to “Symptom-to-FRU index”
on page 285.
If the diagnostics completed successfully and you still
suspect a problem, see “Undetermined problems” on
page 325.
10 Netfinity Server HMM

Diagnostic tools
The following tools are available to help identify and
resolve hardware-related problems:
Diagnostic Programs
Power-on self-test (POST)
POST beep codes
Error messages
Troubleshooting charts
Option diskettes
For a list of error codes and messages, see
“Symptom-to-FRU index” on page 285.
Diagnostic programs
The server diagnostic programs are stored in upgradable
read-only memory (ROM) on the system board. These
programs are the primary method of testing the major
components of the server, such as the the system board,
Ethernet controller, video controller, RAM, keyboard,
mouse (pointing device), diskette drive, serial port, and
parallel port. You can also use them to test some external
devices.
Also, if you cannot determine whether a problem is caused
by the hardware or by the software, you can run the
diagnostic programs to confirm that the hardware is
working properly.
Note
A single problem might cause several error messages.
When this occurs, work to correct the cause of the first
error message. After the cause of the first error
message is corrected, the other error messages might
not occur the next time you run the test.
To run the Diagnostic Programs, see “Running diagnostic
programs” on page 14.
For a list of error codes and messages, see
“Symptom-to-FRU index” on page 285.
Power-on self-test (POST)
When you turn on the server, it performs a series of tests
to check the operation of server components and some of
the options installed in the server. This series of tests is
called the power-on self-test or POST.
POST does the following:
Checks the operation of some basic system board
operations
Checks the memory
Compares the current server configuration with the
stored server configuration information
Netfinity 5500 M20 - Type 8662 11

Configures PCI adapters
Starts the video operation
Verifies that drives (such as the diskette, CD-ROM,
and hard disk drives) are connected properly
If you have a power-on password or administrator
password set, you must type the password and press
Enter, when prompted, before POST will continue.
While the memory is being tested, the amount of available
memory appears on the screen. These numbers advance
as the server progresses through POST and the final
number that appears on the screen represents the total
amount of memory available. If POST finishes without
detecting any problems, a single beep sounds, the first
screen of the operating system or application program
appears, and the System POST Complete (OK) light is
illuminated on the information LED panel.
If POST detects a problem, more than one beep sounds
and an error message appears on the screen.
Note
A single problem might cause several error messages.
When this occurs, work to correct the cause of the first
error message. After the cause of the first error
message is corrected, the other error messages
usually will not occur the next time you run the test.
For a list of error codes and messages, see
“Symptom-to-FRU index” on page 285.
POST beep codes
POST generates beep codes to indicate successful
completion or the detection of a problem.
One beep indicates the successful completion of
POST.
More than one beep indicates that POST detected a
problem. For a list of error codes and messages, see
“Symptom-to-FRU index” on page 285.
Error messages - descriptions
Error messages indicate that a problem exists; they are not
intended to be used to identify a failing part.
Troubleshooting and servicing of complex problems
indicated by error messages should be performed by
trained service personnel.
Hardware error messages that occur can be text, numeric,
or both. Messages generated by the software generally
are text messages, but they also can be numeric.
12 Netfinity Server HMM