IBM 2179 Owner's manual

IBM Personal Computer Ty pes 2179 and 6643
Hardware Maintenance Manual


IBM Personal Computer Ty pes 2179 and 6643
Hardware Maintenance Manual


:
Note: Before using this information and the product it supports, be sure to read the general information under “Notices” on page
116.
Third Edition (July 2004)
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 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
Important safety information . . . . . . . . iii Online support . . . . . . . . . . . .iv
This manual contains service and reference information for the IBM Personal
Computer, Types 2179 and 6643.
This manual is divided into product service sections, by type, and a related service
section as follows:
v The product service sections include procedures for isolating problems to a FRU,
a Symptom-to-FRU Index, additional service information, and an illustrated
parts catalog.
v The related service section includes safety notices and safety information, and
problem determination tips.
Attention:
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 77 and “Safety information” on page 102.
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.
© Copyright IBM Corp. 2004 iii

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.
Lea atentamente todas las declaraciones de precaución y peligro ante de llevar a
cabo cualquier operación.
Online support
Use the World Wide Web (WWW) to download Diagnostic, BIOS Flash, and Device
Driver files, and Documents.
The Web address is:
http://www.ibm.com/support
iv Hardware Maintenance Manual

Contents
About this manual . . . . . . . . . . iii
Important safety information . . . . . . . . iii
Online support . . . . . . . . . . . .iv
Chapter 1. General checkout . . . . . .1
General Checkout . . . . . . . . . . . . .1
Module test menu and hardware configuration
report . . . . . . . . . . . . . . . .2
Chapter 2. General information . . . . .3
Features . . . . . . . . . . . . . . . .3
Security . . . . . . . . . . . . . . .3
Specifications . . . . . . . . . . . . . .3
Chapter 3. Diagnostics . . . . . . . .5
Setup Utility program . . . . . . . . . . .5
Diagnostics and test information . . . . . . .5
IBM PC Enhanced Diagnostics . . . . . . . .6
Diagnostics program download . . . . . . .6
Starting the IBM PC Enhanced Diagnostics
Program . . . . . . . . . . . . . . .6
Navigating through the diagnostics programs . .7
Running diagnostics tests . . . . . . . . .7
Test selection . . . . . . . . . . . . .7
IBM PC Enhanced Memory Diagnostics . . . .7
Alert-On LAN test . . . . . . . . . . .8
Asset ID test . . . . . . . . . . . . .8
Test results . . . . . . . . . . . . . .8
Hard file Smart test . . . . . . . . . . .9
Fixed Disk Optimized Test . . . . . . . . .9
Quick and Full erase - hard drive . . . . . .9
Iomega Zip drive test . . . . . . . . . .10
Asset EEPROM backup . . . . . . . . .10
Viewing the test log . . . . . . . . . .10
Hard disk drive boot error . . . . . . . .11
When to use the Low-Level Format program . .12
Preparing the hard disk drive for use . . . . .12
Chapter 4. FRU replacements . . . . .13
Moving The Computer . . . . . . . . . .13
System board layout . . . . . . . . . . .14
CMOS Clear jumper settings . . . . . . . .15
Processor Speed Settings . . . . . . . . . .15
System Board Memory . . . . . . . . . .15
Removing a DIMM . . . . . . . . . . . .15
Installing a DIMM . . . . . . . . . . . .16
Power Supply . . . . . . . . . . . . .16
20-pin main power supply connection . . . . .16
Display . . . . . . . . . . . . . . . .17
Computer exploded view (Types 2179 and 6643) . .18
Input/Output connectors . . . . . . . . . .19
Controls and status indicators . . . . . . . .20
Rear bucket housing (rear cover) removal . . . .21
Upper base cover and base cover wing removal . .22
Hard disk drive removal . . . . . . . . . .23
Rear EMC cover assembly removal . . . . . .23
Diskette drive/CD-ROM drive/DVD drive removal 24
Removing the drives from the drive bracket
assembly . . . . . . . . . . . . . .24
Speaker assembly removal . . . . . . . . .25
Battery removal and installation . . . . . . .25
Fan removal . . . . . . . . . . . . . .26
Power supply removal . . . . . . . . . . .26
Processor removal . . . . . . . . . . . .28
System board removal . . . . . . . . . . .29
Power inverter board removal . . . . . . . .29
Chassis assembly removal . . . . . . . . .31
Front bezel removal . . . . . . . . . . .32
LCD removal . . . . . . . . . . . . . .32
LCD Receiver card removal . . . . . . . . .33
Installing the Receiver card . . . . . . . .34
Hinge assembly removal . . . . . . . . . .34
Chapter 5. Symptom-to-FRU Index . . .35
Beep symptoms . . . . . . . . . . . . .35
Hard disk drive boot error . . . . . . . . .36
IBM Enhanced Diagnostic error codes . . . . .37
POST error codes . . . . . . . . . . . .54
Undetermined problems . . . . . . . . . .56
Chapter 6. Parts listing . . . . . . . .57
System Type 2179 . . . . . . . . . . . .57
System Type 6643 . . . . . . . . . . . .61
Keyboards . . . . . . . . . . . . . . .64
Keyboards . . . . . . . . . . . . . . .65
Computer power cords . . . . . . . . . .66
Chapter 7. Additional service
information . . . . . . . . . . . . .69
Security . . . . . . . . . . . . . . .69
Passwords . . . . . . . . . . . . . .69
Power-on password . . . . . . . . .69
Removing a power-on password . . . .69
Administrator password . . . . . . . .70
Administrator password control . . . . .70
Operating system password . . . . . . .70
Vital product data . . . . . . . . . . .70
Alert on LAN . . . . . . . . . . . .70
Hard disk drive jumper settings . . . . . .70
IDE hard disk drive settings . . . . . . .71
CD-ROM drive/DVD drive jumper settings . .71
BIOS levels . . . . . . . . . . . . .71
CMOS Clear Procedure . . . . . . . . .72
Flash (BIOS/VPD) update procedure . . . . .72
Power management . . . . . . . . . .73
Advanced Configuration and Power Interface
(ACPI) BIOS . . . . . . . . . . . . . .73
Advanced Power Management . . . . . . . .73
Automatic Hardware Power Management features 73
© Copyright IBM Corp. 2004 v

Setting Automatic Hardware Power Management
features . . . . . . . . . . . . . . . .73
Automatic Power-On features . . . . . . . .74
Network settings . . . . . . . . . . . .74
Flash over LAN (update POST/BIOS over network) 74
Wake on LAN . . . . . . . . . . . . .75
Chapter 8. Related service information 77
Safety notices (multi-lingual translations) . . . .77
Safety information . . . . . . . . . . . . 102
General safety . . . . . . . . . . . . 102
Grounding requirements . . . . . . . . 102
Electrical safety . . . . . . . . . . . . 102
Handling electrostatic discharge-sensitive
devices . . . . . . . . . . . . . . 104
Safety inspection guide . . . . . . . . . 104
Problem determination tips . . . . . . . . . 106
File updates . . . . . . . . . . . . . 106
Adding adapters to the system . . . . . . 106
Software considerations . . . . . . . . . 107
BIOS . . . . . . . . . . . . . . 107
Drivers . . . . . . . . . . . . . 107
Hardware considerations . . . . . . . . 108
System resource conflicts . . . . . . . . 109
Miscellaneous information . . . . . . . . . 111
Acronyms, Abbreviations, and Terms . . . . 111
Send Us Your Comments! . . . . . . . . .114
Notices . . . . . . . . . . . . . . .116
Trademarks . . . . . . . . . . . . . .117
vi Hardware Maintenance Manual

Chapter 1. General checkout
General Checkout
This general checkout procedure is for types 2179 and 6643 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
“IBM PC Enhanced Diagnostics” on page 6.
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:
Use Beep codes and the IBM Enhanced Diagnostics to diagnose and fix problems.
1. Types 2179 and 6643 computers default to come up quiet (no beep and no memory count and checkpoint code
display) when no errors are detected.
2. Before 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 71.
3. If there is a Beep code, go to “Beep symptoms” on page 35.
4. If multiple error codes are displayed, diagnose the first error code displayed.
5. If the computer hangs with a POST error, go to “POST error codes” on page 54.
6. If the computer hangs and no error is displayed, go to “Undetermined problems” on page 56.
7. If an installed device is not recognized by the diagnostics program, that device might be defective.
001
1. Power-off the computer and all external devices.
2. Check all cables and power cords.
3. Set all display controls to the middle position.
4. Insert the IBM Enhanced Diagnostics diskette into drive A or the CD into the
CD drive.
5. Power-on all external devices.
6. Power-on the computer.
7. Check for the following response:
a. One or two beeps (depending on the diagnostics version level).
b. Readable instructions or the Main Menu.
DID
YOU RECEIVE THE CORRECT RESPONSE?
© Copyright IBM Corp. 2004 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 5.)
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.
OR
7. Go to “IBM PC Enhanced Diagnostics” on page 6.
003
Run the IBM PC Enhanced Diagnostics test. If necessary, refer to “Diagnostics and
test information” on page 5.
v If you receive an error, replace the part that the diagnostic program calls out or
go to “IBM PC Enhanced Diagnostics” on page 6.
v If the test stops and you cannot continue, replace the last device tested.
v If the LCD display has problems such as black screen, blinking on-off, or the
screen pallet color is wrong, go to “Display” on page 17.
Module test menu and hardware configuration report
Depending on the diagnostics 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 the diagnostics program:
v The diagnostic code for the device is not on the diagnostics provided with that
device
v The missing device is defective or it requires an additional diskette or service
manual.
v An unrecognizable device is installed.
v A defective device is causing another device not to be recognized.
v The SCSI controller failed (on the system board or SCSI adapter).
v Use the procedure in “Undetermined problems” on page 56 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 56.
2 Hardware Maintenance Manual