IBM NETVISTA 2251 Owner's manual

IBM NetVista
Hardware Maintenance Manual
A40 Type 6830/6831
A40i Type 2251


IBM NetVista
Hardware Maintenance Manual
A40 Type 6830/6831
A40i Type 2251


Note:
Before using this information and the product it supports, be sure to read the general
information under “Notices” on page 141.
Second Edition (November 2000)
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
ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
LIMITED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do
not allow disclaimers or 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 or changes in the products or the programs described in this publication at any time.
Requests for technical information about IBM products should be made to your IBM Authorized Dealer or your
IBM Marketing Representative.
© Copyright International Business Machines Corporation 2000. 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 service and reference information for the IBM
«
NetVista
TM
Series computer type 2251/6830/6831.
This manual is divided into product service sections (by machine chassis) and a
related service section, as follows:
vThe product service sections include procedures for isolating problems to a FRU,
a Symptom-to-FRU Index, additional service information and an illustrated parts
catalog.
vThe related service section includes safety notices and safety information, and
problem determination tips.
Note:
This manual is intended for trained servicers who are familiar with IBM Personal
Computer products. Use this manual along with advanced diagnostic tests to troubleshoot
problems effectively.
Before servicing an IBM product, be sure to review the “Safety notices (multi-lingual
translations)”on page 103 and “Safety Information”on page 128.
Important Safety Information
Be sure to read all caution and danger statements in this book before performing
any of the instructions.
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 e di pericolo prima di effettuare
qualsiasi operazione.
© Copyright IBM Corp. 2000 iii

Leia todas as instruções de cuidado e perigo antes de executar qualquer operação.
Lea atentamente todas las declaraciones de precaución y peligro ante de llevar a
cabo cualquier operación.
iv Hardware Maintenance Manual

Contents
About this manual ..........iii
Important Safety Information ........iii
Chapter 1. General Checkout......1
Chapter 2. General Information .....3
Features................3
Specifications ..............5
Chapter 3. Diagnostics ........7
Setup Utility program ...........8
Product Recovery Program menu .......9
Diagnostics ..............10
Diagnostics download ..........10
Navigating through the diagnostic programs . . 10
Running diagnostic tests .........10
Test selection .............10
Module test menu/hardware configuration report 11
Memory Diagnostic tests .........11
Alert-On LAN¬test...........12
Asset ID¬test ............12
Testresults .............12
Hard file Smart test...........13
FixedDiskOptimizedTest........13
QuickandFullerase-harddrive......13
Iomega Zip drive test ..........14
Asset EEPROM backup .........14
Viewing the test log ..........14
When to use the Low-Level Format program . . . 15
Preparingtheharddiskdriveforuse......15
Chapter 4. Installing Options .....17
Input/Output connectors ..........18
Removingthecover ...........19
Installing adapters ............20
AGP adapter .............20
Audio adapter ............21
ADSL modem ............21
Home PNA network adapter .......21
Installing internal drives ..........22
Installing drives in bays 1, 2 and 3 .....22
CD-ROM drive jumper settings......23
Installing a hard drive in bay 4 .......24
Hard disk drive jumper settings .....25
Installing a security U-bolt .........27
Replacing the cover............28
Chapter 5. FRU Replacements.....29
Computerexplodedview..........30
A40/A40P/A40i system board layout .....31
System board locations .........31
System board jumper settings .......32
Clear CMOS/Flash Boot Block Recovery. . . 32
Processor Speed Settings ........32
System board memory..........32
Installing memory ..........32
Replacing a system board .........34
Replacingaprocessor...........35
Replacing the speaker ...........35
Replacingthefan............35
Power supply .............35
20-pin main power supply connection ....36
Power supply removal..........36
Chapter 6. Symptom-to-FRU Index . . . 39
SIMM/DIMM/RIMMmemoryerrors......40
Hard disk drive boot error .........41
Diagnostic error codes ...........42
Beepsymptoms.............60
No-beepsymptoms............62
POST error codes ............63
Miscellaneous error messages ........77
Undetermined problems ..........79
Chapter 7. Parts ...........81
Parts listing ..............84
Keyboards (RAK 2 Black)..........89
ComputerPowerCords..........90
Special tools ..............91
Chapter 8. Additional Service
Information .............93
Security features.............94
Passwords..............94
Power-onpassword .........94
Removingapower-onpassword.....94
Administrator password ........95
Administrator password control .....95
Operating system password .......95
Vital product data ...........95
Management Information Format (MIF) ....95
Alert on LAN ............96
BIOSlevels..............97
Flash (BIOS/VPD) update procedure ......98
Flash recovery boot block jumper .......98
Power management ...........99
Automatic configuration and power interface
(ACPI) BIOS .............99
Advanced Power Management .......99
Automatic Hardware Power Management
features..............100
Setting Automatic Hardware Power
Management features..........100
AutomaticPower-Onfeatures.......101
Network settings ............101
Flash over LAN (update POST/BIOS over
network)..............102
WakeonLAN............102
© Copyright IBM Corp. 2000 v

Chapter 9. Related Service
Information ............103
Safety notices (multi-lingual translations) ....103
Safety Information............128
General Safety ............128
Grounding requirements ........128
Electrical safety............128
Handling electrostatic discharge-sensitive
devices ..............130
Safety inspection guide .........131
Problem determination tips.........132
File updates .............132
Adding adapters to the system ......133
Softwareconsiderations.........133
BIOS..............133
Drivers.............133
Hardwareconsiderations........134
System resource conflicts ........135
Miscellaneous Information .........137
Acronyms, Abbreviations, and Terms ....137
Send Us Your Comments! .........139
Notices ...............141
Trademarks..............142
vi Hardware Maintenance Manual

Chapter 1. General Checkout
This general checkout procedure is for type 2251/6830/6831 computers.
Attention:
The drives in the computer you are servicing might have been rearranged or the drive
startup sequence changed. Be extremely careful during write operations such as copying,
saving or formatting. Data or programs can be overwritten if you select an incorrect drive.
Diagnostic error messages appear when a test program finds a problem with a
hardware option. For the test programs to properly determine if a test Passed,Failed
or Aborted, the test programs check the error-return code at test completion. See
“Diagnostics”on page 10.
General error messages appear if a problem or conflict is found by an application
program, the operating system, or both. For an explanation of these messages, refer
to the information supplied with that software package.
Notes:
vType 2251/6830/6831 computers default to come up quiet (no beep and no memory
count and checkpoint code display) when no errors are detected by POST.
vTo enable beep and memory count and checkpoint code display when a successful POST
occurs, do the following:
1. Select Start Options in the Configuration/Setup Utility program (see “Setup Utility
program”on page 8).
2. Set Power-On Self-Test to Enhanced.
vBefore replacing any FRUs, ensure that the latest level of BIOS is installed on the system.
A down-level BIOS might cause false errors and unnecessary replacement of the system
board. For more information on how to determine and obtain the latest level BIOS, see
“BIOS levels”on page 97.
vIf multiple error codes are displayed, diagnose the first error code displayed.
vIf the computer hangs with a POST error, go to ″Symptom-to-FRU Index″on page 39.
vIf the computer hangs and no error is displayed, go to “Undetermined problems”on
page 79.
vIf an installed device is not recognized by diagnostics, that device might be defective.
001
1. Power-off the computer and all external devices.
2. Check all cables and power cords.
3. Make sure the system board is seated properly.
4. Set all display controls to the middle position.
5. Power-on all external devices.
6. Power-on the computer.
7. Check for the following response:
vReadable instructions or the Main Menu.
DID YOU RECEIVE THE CORRECT RESPONSE?
© Copyright IBM Corp. 2000 1

If NO, continue to 002.
If YES, proceed to 003.
002
If the Power Management feature is enabled, do the following:
1. Start the Configuration/Setup Utility program (see “Setup Utility program”on
page 8)
2. Select Power Management from the Configuration/Setup Utility program
menu.
3. Select APM.
4. Be sure APM BIOS Mode is set to Disabled. If it is not, press Left Arrow (})or
Right Arrow (Æ) to change the setting.
5. Select Automatic Hardware Power Management.
6. Set Automatic Hardware Power Management to Disabled.
7. If the problem persists, continue to 003.
003
Run diagnostics. If necessary, refer to “Diagnostics”on page 10.
vIf you receive an error, replace the part that diagnostics calls out or go to
″Symptom-to-FRU Index″on page 39.
vIf the test stops and you cannot continue, replace the last device tested.
2Hardware Maintenance Manual

Chapter 2. General Information
Features
The NetVista type 2251/6830/6831 computers are available in4x4(three I/O
adapter slots, plus one AGP slot, and four drive bays).
Not all models come with all features summarized here.
Microprocessor
Intel
«
Pentium
¬
III microprocessor with 256 KB of internal L2 cache memory
Memory
vSupport for dual inline memory modules (DIMMs)
–3.3 V, synchronous, 168-pin, unbuffered, 133 MHz nonparity synchronous
dynamic random access memory (SDRAM)
–64 MB, 128 MB, and 256 MB unbuffered nonparity DIMMs for a maximum of
512 MB
–DIMM heights of 38.1 mm (1.5 inches)
v512 KB flash memory for system programs
Internal drives
v3.5-inch, 1.44 MB diskette drive
vInternal hard disk drive
vEIDE CD or DVD drive (some models)
Video controller
vDynamic video memory technology
vAccelerated graphics port (AGP) adapter (some models)
Audio subsystem
16-bit integrated Sound Blaster Pro compatible audio subsystem
Connectivity
v10/100 Mbps Ethernet adapter that supports Wake on LAN (some models)
vModem (some models)
System management features
vRemote Program Load (RPL) and Dynamic Host Configuration Protocol (DHCP)
vWake on LAN
«
(requires Wake on LAN-supported network adapter)
vWake on Ring (in the Configuration/Setup Utility program, this feature is called
Serial Port Ring Detect for an external modem and Modem Ring Detect for an
internal modem)
vWake on Alarm
vRemote Administration (the ability to update POST and BIOS over the network)
vAutomatic power-on startup
vSystem Management (SM) BIOS and SM software
vAbility to store POST hardware test results
Input/output features
v25-pin, ECP/EPP parallel port
vOne or two 9-pin serial ports
vFour 4-pin, USB ports
© Copyright IBM Corp. 2000 3

vStandard mouse port
vStandard keyboard port
v15-pin monitor port
vThree audio connectors (line/headphone out, line in, and microphone)
vJoystick/MIDI connectors (some models)
Expansion
vDrive bays: 4
vPCI expansion slots: 3
vOne AGP expansion slot
Power
v155 W power supply with manual voltage selection switch
vAutomatic 50/60 Hz input frequency switching
vAdvanced Power Management support
vAdvance Configuration and Power Interface (ACPI) support
Security features
vPower-on and administrator passwords
vCover keylock
vSupport for the addition of a U-bolt and lockable cable
vStartup sequence control
vStartup without diskette drive, keyboard, or mouse
vUnattended start mode
vDiskette and hard disk I/O control
vSerial and parallel port I/O control
vSecurity profile by device
IBM preinstalled software
This computer might come with preinstalled software. If so, an operating system,
device drivers to support built-in features, and other support programs are
included.
Operating systems (supported)
vMicrosoft
«
Windows
«
2000 Professional
vMicrosoft Windows NT
«
Workstation Version 4.0 with Service Pack 6
vMicrosoft Windows 98 SE
vMicrosoft Millenium
Operating systems (tested for compatibility)
1
vMicrosoft Windows 95
vDOS 2000
vSCO OpenServer 5.0.2 and later
vIBM OS/2
«
Warp Connect 3.0
vIBM OS/2 Warp 4.0
vIBM OS/2 LAN Server 3.0 and 4.0
vLinux: Red hat, Caldera, SuSE., and Pacific High Tech
vSun Solaris 2.5.1 or later
vNovell NetWare Versions 3.2, 4.11, 5.0
1. The operating systems listed here are being tested for compatibility at the time this publication goes to press. Additional
operating systems might be identified by IBM as compatible with your computer following the publication of this booklet.
Corrections and additions to this list are subject to change. To determine if an operating system has been tested for compatibility,
check the Web site of the operating system vendor.
4Hardware Maintenance Manual

Specifications
Dimensions
Height: 425 mm (16.7 in.)
Width: 140 mm (5.5 in.)
Depth: 425 mm (16.7 in.)
Weight
Minimum configuration as shipped: 9.4 kg (20 lb)
Maximum configuration: 11.3 kg (25.0 lb)
Environment
Air temperature:
System on: 10°to 35°C(50°to 95°F)
System off: 10°to 43°C(50°to 110°F)
Maximum altitude: 2134 m (7000 ft)
Note: The maximum altitude, 2134 m (7000 ft), is
the maximum altitude at which the specified air
temperatures apply. At higher altitudes, the
maximum air temperatures are lower than those
specified.
Humidity:
System on: 8% to 80%
System off: 8% to 80%
Heat output (approximate) in British thermal units (Btu)
per hour:
Minimum configuration: 240 Btu/hr. (75 watts)
Maximum configuration: 705 Btu/hr. (207 watts)
Airflow
Approximately 0.5 cubic meters per minute (18 cubic
feet per minute) maximum
Electrical input
Input voltage:
Low range:
Minimum: 90 V ac
Maximum: 137 V ac
Input frequency range: 57–63 Hz
Voltage switch setting: 115 V ac
High range:
Minimum: 180 V ac
Maximum: 265 V ac
Input frequency range: 47–53 Hz
Voltage switch setting: 230 V ac
Input kilovolt-amperes (kVA) (approximate):
Minimum configuration as shipped: 0.08 kVA
Maximum configuration: 0.3 kVA
Note: Power consumption and heat output vary
depending on the number and type of optional
features installed and the power-management
optional features in use.
Acoustical noise-emission values
Average sound-pressure levels:
At operator position:
Idle: 38 dBA
Operating: 43 dBA
At bystander position - 1 meter (3.3 ft):
Idle: 33 dBA
Operating: 37 dBA
Declared (upper limit) sound-power levels:
Idle: 4.8 bels
Operating: 5.1 bels
Note: The noise-emission levels were measured in controlled acoustical
environments according to the procedures specified by the American
National Standards Institute (ANSI) S12.10 and ISO 7779 and are reported in
accordance with ISO 9296. Actual sound-pressure levels in a given location
might exceed the average values stated because of room reflections and
other nearby noise sources. The declared sound-power levels indicate an
upper limit, below which a large number of computers will operate.
For additional information, see the ISO Supplier’s Declaration, which is available
from IBM.
Chapter 2. General Information 5

6Hardware Maintenance Manual

Chapter 3. Diagnostics
Setup Utility program ...........8
Product Recovery Program menu .......9
Diagnostics ..............10
Diagnostics download ..........10
Navigating through the diagnostic programs . . 10
Running diagnostic tests .........10
Test selection .............10
Module test menu/hardware configuration report 11
Memory Diagnostic tests .........11
Alert-On LAN¬test...........12
Asset ID¬test ............12
Testresults .............12
Hard file Smart test...........13
FixedDiskOptimizedTest........13
QuickandFullerase-harddrive......13
Iomega Zip drive test ..........14
Asset EEPROM backup .........14
Viewing the test log ..........14
When to use the Low-Level Format program . . . 15
Preparingtheharddiskdriveforuse......15
The following tools are available to help identify and resolve hardware-related
problems.
vSetup Utility program
vPower-On Self-Test (POST)
–POST Beep Codes
–Error Code Format
vDiagnostics program
vRecovery utility
–Full recovery
–Partial recovery
vRepair utility
© Copyright IBM Corp. 2000 7

Setup Utility program
Attention:
A customized setup configuration (other than default settings) might exist on the computer
you are servicing. Running the Setup Utility program might alter those settings. Note the
current configuration settings and verify that the settings are in place when service is
complete.
The Setup Utility (configuration) program is stored in the permanent memory of
the computer. This program includes settings for the following:
vSystem Summary
vProduct Data
vDevices and I/O Ports
vStart Options
vDate and Time
vSystem Security
vAdvanced Setup
vPower Management
To run the Setup Utility program, use the following procedure.
1. Power-off the computer and wait for a few seconds until all in-use lights go off.
2. Power-on the computer.
3. When the Setup Utility prompt appears on the screen during start-up, press F1.
The Setup Utility menu will appear.
4. Follow the instructions on the screen.
5. When finished, select System Summary to verify that any configuration
changes have been accepted.
8Hardware Maintenance Manual

Product Recovery Program menu
Type 2251/6830/6831 machines have recovery and diagnostics programs on a
separate hard drive partition. The Diagnostics diskette is not shipped with the
machine or the HMM. To download the diagnostics program, see “Diagnostics
download”on page 10.
At startup, after the machine tests the SIMM/DIMM memory (if Power-on Self
Test is set to Enhanced), the machine displays the following prompt:
To start the Product Recovery Program, press F11
After depressing F11, you are given the following options.
vFull recovery
This utility reformats the hard drive and restores all original files.
vPartial recovery
This utility reformats the hard drive and restores the Windows operating system
and all device drivers
vRepair
This is the emergency repair utility, and should not be used to install Windows
components.
vSystem utilities
1. Run diagnostics
2. System info
3. Create recovery/ repair diskette
Chapter 3. Diagnostics 9

Diagnostics
The diagnostic programs use a full range of diagnostic utilities to determine the
operating condition of the computer’s hardware components.
For a complete list of error codes and messages, see ″Symptom-to-FRU Index″on
page 39.
Diagnostics download
To download the diagnostic programs, do the following:
vGo to http://www.ibm.com/.
vSelect Support.
vSelect Desktop computing from the ″Search by Category″pull-down menu.
vSelect NetVista from the ″Product Family″list.
vSearch for the machine type in the ″Quick Path″box on the left.
vSelect Diagnostics from the ″Downloadable files by Category″pull-down menu
or go directly to the link PC Enhanced Diagnostics diskette from the
″Downloadable files by date″list. This link will take you to the self-starting
utility download and instructions.
Navigating through the diagnostic programs
Use the cursor movement keys to navigate within the menus.
vThe Enter key is used to select a menu item.
vThe Esc key is used to back up to the previous menu.
vFor online help select F1.
Running diagnostic tests
There are four ways to run the diagnostic tests.
1. Using the cursor movement keys, highlight Run Normal Test or Run Quick
Test from the Diagnostics menu and then press Enter.
This will automatically run a pre-defined group of tests from each test category.
Run Normal Test runs a more extensive set of tests than does Run Quick Test
and takes longer to execute.
2. Press F5 to automatically run all selected tests in all categories. See ″Test
Selection″.
3. From within a test category, press Ctrl-Enter to automatically run only the
selected tests in that category. See ″Test Selection″.
4. Using the cursor movement keys, highlight a single test within a test category,
then press Enter. This will run only that test.
Press Esc at any time to stop the testing process.
Test results, (N/A, PASSED, FAILED, ABORTED), are displayed in the field beside
the test description and in the test log. See “Viewing the test log”on page 14.
Test selection
To select one or more tests, use the following procedure.
1. Open the corresponding test category.
2. Using the cursor movement keys, highlight the desired test.
3. Press the space bar.
10 Hardware Maintenance Manual

A selected test is marked by >>. Pressing the space bar again de-selects a test
and removes the chevron.
4. Repeat steps 2 and 3 above to select all desired tests.
Module test menu/hardware configuration report
Depending on the diagnostic version level you are using, the installed devices in
the computer are verified in one of two ways.
1. At the start of the diagnostic tests, the Module Test Menu is displayed.
Normally, all installed devices in the computer are highlighted on the menu.
2. At the start of the diagnostic tests, the main menu appears. From this menu,
select System Info, then select Hardware Configuration from the next menu.
Normally, all installed devices in the computer are highlighted on this report.
If an installed device is not recognized by diagnostisc, then review the following:
vThe diagnostic code for the device is not in the siagnostic programs. Run the
diagnostics provided with that device.
vThe missing device is defective or it requires an additional diskette or service
manual.
vAn unrecognizable device is installed.
vA defective device is causing another device not to be recognized.
vThe SCSI controller failed (on the system board or SCSI adapter).
vUse the procedure in “Undetermined problems”on page 79 to find the problem.
If a device is missing from the list, replace it. If this does not correct the problem,
use the procedure in “Undetermined problems”on page 79.
Memory Diagnostic tests
The Memory Diagnostics provide the capability to identify a particular memory
module (SIMM or DIMM) which fails during testing. Use the System Board Layout
section to reference the memory sockets, or select F1 twice to load the Diagnostics
online manual and select ″SIMM/DIMM/RIMM Locator″.
Follow the steps below to locate the Memory Diagnostic tests options.
1. Select the DIAGNOSTICS option on the toolbar and press Enter.
2. Highlight either the Memory Test-Full or Memory Test-Quick option and press
Enter.
3.
vMemory Test-Full
The full memory test will take about 80 seconds per MB of memory and will
detect marginal, intermittent, and solid (stuck) memory failures.
Chapter 3. Diagnostics 11

vMemory Test-Quick
The quick memory test will take about 20 seconds per MB of memory and
will detect solid (stuck) memory failures only.
Notes:
Either level of memory testing can be performed on all memory or a single SIMM or
DIMM socket.
Only sockets containing a SIMM or DIMM can be selected for testing. Unpopulated sockets
are noted by ........ beside the test description.
Alert-On LAN¬test
The Alert On LAN test does the following:
vDetermines if Alert On LAN is supported on the system.
vChecks the revision ID register.
vVerifies the EEPROM checksum.
vValidates that a software alert can be sent.
Asset ID¬test
The Asset ID test does the following:
vDetermines if Asset ID is supported on the system.
vVerifies the EEPROM areas.
vPerforms an antenna detection test.
Test results
Diagnostic test results will produce the following error code format:
Function
Code
Failure Type DeviceID Date ChkDigits Text
vFunction Code:
Represents the feature or function within the PC.
vFailure Type:
Represents the type of error encountered.
vDeviceID:
Contains the component’s unit-ID which corresponds to either a fixed disk
drive, removable media drive, serial or parallel port, processor, specific SIMM or
DIMM, or a device on the PCI bus.
vDate:
Contains the date on which the diagnostic test was run. The date is retrieved
from CMOS and displayed using the YYYYMMDD format.
12 Hardware Maintenance Manual