IBM ThinkCentre 2296 Owner's manual

ThinkCentre
™
Hardware Maintenance Manual
Ty pe s 2296, 8191, 8198, 8199, 8316, and
8434


ThinkCentre
™
Hardware Maintenance Manual
Ty pe s 2296, 8191, 8198, 8199, 8316, and
8434


Note: Before using this information and the product it supports, be sure to read the
general information under “Notices” on page 183.
Fourth Edition (July 2004)
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
jurisdictions 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 2004. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Chapter 1. About this manual . . . . .1
Important Safety Information . . . . . . . . .1
Chapter 2. General information . . . . .3
Features . . . . . . . . . . . . . . . .3
Physical specifications . . . . . . . . . . .5
Type 8316 . . . . . . . . . . . . . .6
Type 8191 . . . . . . . . . . . . . .7
Types 2296 and 8434 . . . . . . . . . . .8
Types 8198 and 8199 . . . . . . . . . . .9
Chapter 3. General Checkout . . . . .11
Chapter 4. IBM Enhanced Diagnostics 15
Diagnostics program download . . . . . . . .15
Navigating through the diagnostics programs . . .15
Running diagnostics tests . . . . . . . . . .15
Test selection . . . . . . . . . . . . .16
Test results . . . . . . . . . . . . .16
Fixed disk advanced test (FDAT) . . . . . .16
Quick and Full erase - hard drive . . . . . .18
Viewing the test log . . . . . . . . . . .19
Chapter 5. IBM Setup Utility program 21
Starting the IBM Setup Utility program . . . . .21
Viewing and changing settings . . . . . . . .21
Exiting from the IBM Setup Utility program . . .22
Using passwords . . . . . . . . . . . .22
User password . . . . . . . . . . . .22
Administrator password . . . . . . . . .22
Setting, changing, and deleting a password . . .22
Using Security Profile by Device . . . . . . .23
Selecting a startup device . . . . . . . . . .23
Selecting a temporary startup device . . . . .23
Changing the startup device sequence . . . .23
Chapter 6. Replacing FRUs . . . . . .25
Locating connectors on the front . . . . . . .25
Types 2296 and 8434 . . . . . . . . . .25
Type 8191 . . . . . . . . . . . . . .26
Types 8198 and 8199 . . . . . . . . . .27
Type 8316 . . . . . . . . . . . . . .27
Locating the connectors on the rear . . . . . .29
Types 2296 and 8434 . . . . . . . . . .29
Type 8191 . . . . . . . . . . . . . .30
Types 8198 and 8199 . . . . . . . . . .31
Type 8316 . . . . . . . . . . . . . .32
Removing the cover . . . . . . . . . . .32
Types 2296 and 8434 . . . . . . . . . .32
Type 8191 . . . . . . . . . . . . . .33
Types 8198 and 8199 . . . . . . . . . .34
Type 8316 . . . . . . . . . . . . . .34
Locating components . . . . . . . . . . .36
Types 2296 and 8434 . . . . . . . . . .36
Type 8191 . . . . . . . . . . . . . .37
Types 8198 and 8199 . . . . . . . . . .38
Type 8316 . . . . . . . . . . . . . .39
Identifying parts on the system board (all machine
types) . . . . . . . . . . . . . . . .40
Replacing memory (all machine types) . . . . .40
Replacing adapters . . . . . . . . . . . .41
Types 2296 and 8434 . . . . . . . . . .41
Type 8191 . . . . . . . . . . . . . .42
Types 8198 and 8199 . . . . . . . . . .43
Type 8316 . . . . . . . . . . . . . .43
Replacing internal drives . . . . . . . . . .45
Types 2296 and 8434 . . . . . . . . . .46
Type 8191 . . . . . . . . . . . . . .49
Types 8198 and 8199 . . . . . . . . . .51
Type 8316 . . . . . . . . . . . . . .54
Connecting the drive . . . . . . . . . .56
Replacing the battery (all machine types) . . . .56
Replacing the power supply . . . . . . . . .57
Types 2296 and 8434 . . . . . . . . . .57
Type 8191 . . . . . . . . . . . . . .58
Types 8198 and 8199 . . . . . . . . . .59
Type 8316 . . . . . . . . . . . . . .60
Replacing a microprocessor (all machine types) . .61
Replacing the system board . . . . . . . . .63
Types 2296, 8198, 8199, and 8434 . . . . . .63
Type 8191 . . . . . . . . . . . . . .63
Type 8316 . . . . . . . . . . . . . .64
Replacing the cover and connecting the cables . . .64
Types 2296 and 8434 . . . . . . . . . .64
Type 8191 . . . . . . . . . . . . . .65
Types 8198 and 8199 . . . . . . . . . .66
Type 8316 . . . . . . . . . . . . . .67
Chapter 7. Symptom-to-FRU Index . . .69
Hard disk drive boot error . . . . . . . . .69
Power Supply Errors . . . . . . . . . . .69
Diagnostic error codes . . . . . . . . . . .70
Beep symptoms . . . . . . . . . . . . .88
No-beep symptoms . . . . . . . . . . . .90
POST error codes . . . . . . . . . . . .91
Miscellaneous error messages . . . . . . . . 106
Undetermined problems . . . . . . . . . . 108
Chapter 8. Additional Service
Information . . . . . . . . . . . . 109
Security features . . . . . . . . . . . . 109
Passwords . . . . . . . . . . . . . 109
Vital product data . . . . . . . . . . .110
Erasing a lost or forgotten password (clearing
CMOS) . . . . . . . . . . . . . . .110
BIOS levels . . . . . . . . . . . . . . 111
Flash update procedures . . . . . . . . . . 111
Updating (flashing) BIOS from a diskette or
CD-ROM . . . . . . . . . . . . . . 111
© Copyright IBM Corp. 2004 iii

Updating (flashing) BIOS from your operating
system . . . . . . . . . . . . . . . 111
Recovering from a POST/BIOS update failure 112
Power management . . . . . . . . . . .113
Automatic configuration and power interface
(ACPI) BIOS . . . . . . . . . . . . .113
Advanced Power Management . . . . . .113
Automatic Hardware Power Management
features . . . . . . . . . . . . . .113
Setting Automatic Hardware Power
Management features . . . . . . . . . .113
Automatic Power-On features . . . . . . .114
Product Recovery Program . . . . . . . . .115
Chapter 9. Parts listing . . . . . . .117
Machine Type 2296 . . . . . . . . . . .117
Machine Type 8191 . . . . . . . . . . . 121
Machine Type 8198 . . . . . . . . . . . 129
Machine Type 8199 . . . . . . . . . . . 134
Machine Type 8316 . . . . . . . . . . . 140
Machine Type 8434 . . . . . . . . . . . 143
Chapter 10. Related service
information . . . . . . . . . . . . 149
Safety information . . . . . . . . . . . . 149
General safety . . . . . . . . . . . . 149
Electrical safety . . . . . . . . . . . . 150
Safety inspection guide . . . . . . . . . 151
Handling electrostatic discharge-sensitive
devices . . . . . . . . . . . . . . 152
Grounding requirements . . . . . . . . 153
Safety notices (multi-lingual translations) . . . 153
Send us your comments! . . . . . . . . . 182
Problem determination tips . . . . . . . . . 183
Notices . . . . . . . . . . . . . . . 183
Trademarks . . . . . . . . . . . . . . 184
iv Hardware Maintenance Manual

Chapter 1. About this manual
This manual contains service and reference information for IBM
®
computer Types
2296, 8191, 8198, 8199, 8316, and 8434.
This manual is divided into product service sections 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.
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 information” on page 149.
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. 2004 1

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.
2 Hardware Maintenance Manual

Chapter 2. General information
This IBM
®
computer incorporates many of the latest advances in computer
technology and can be upgraded as your needs change.
Go to Access IBM for general information about the use, operation, and
maintenance of the computer. Access IBM also contains information to help solve
problems and get repair service or other technical assistance.
Features
System information
The following information covers a variety of models. For information about
your specific model, use the IBM Setup Utility. See Chapter 5, “IBM Setup
Utility program,” on page 21.
This section provides an overview of the computer features and preinstalled
software.
Microprocessor (varies by model type)
v Intel
®
Celeron
®
microprocessor with 256 KB of internal L2 cache memory
v Intel
®
Pentium
®
4 microprocessor with 512 KB of internal L2 cache memory and
Intel NetBurst
™
micro-architecture
Memory
v Support for two dual inline memory modules (DIMMs)
v 512 KB flash memory for system programs
Internal
drives
v 3.5-inch, 1.44 MB diskette drive
v Internal hard disk drive
v EIDE CD-ROM drive or DVD-ROM drive (some models)
Video
subsystem
v Intel Extreme
™
graphics
v Accelerated graphics port (AGP) video adapter slot on the system board (some
models)
Audio
subsystem
Integrated SoundMAX 3 audio
Connectivity
v 10/100 Mbps integrated Intel Ethernet controller that supports the Wake on
LAN
®
feature
v Soft modem V.90/V.44 (some models)
System
management features
v Remote Program Load (RPL) and Dynamic Host Configuration Protocol (DHCP)
© Copyright IBM Corp. 2004 3

v Wake on LAN
v Wake on Ring (in the IBM Setup Utility program, this feature is called Serial Port
Ring Detect for an external modem and Modem Ring Detect for an internal
modem)
v Remote Administration
v Automatic power-on startup
v System Management (SM) BIOS and SM software
v Ability to store POST hardware test results
Input/output
features
v 25-pin, Extended Capabilities Port (ECP)/Extended Parallel Port (EPP)
v 9-pin serial connector (2 connectors on some models)
v Six 4-pin, USB connectors
v PS/2
®
mouse connector
v PS/2 keyboard connector
v Ethernet connector
v VGA monitor connector
v Three audio connectors (line in, line out, and microphone)
v Front connectors for headphone, microphone, IEEE 1394, and S/PDIF (some
models)
Expansion
v Open drive bays for additional drives (varies by model)
v Three 32-bit peripheral component interconnect (PCI) adapter slots (supports
low-profile adapters only)
v One accelerated graphics port (AGP) expansion slot (supports low-profile
adapters only)
Power
v 200 W power supply with manual voltage selection switch
v Automatic 50/60 Hz input frequency switching
v Advanced Power Management support
v Advanced Configuration and Power Interface (ACPI) support
Security
features
v User and administrator passwords
v Support for the addition of a rope clip and lockable cable
v Support for the addition of an integrated cable lock
v Startup sequence control
v Startup without diskette drive, keyboard, or mouse
v Unattended start mode
v Diskette and hard disk I/O control
v Serial and parallel port I/O control
v Security profile by device
4 Hardware Maintenance Manual

IBM preinstalled software
The computer might come with preinstalled software. If it does, an operating
system, device drivers to support built-in features, and other support programs are
included.
Operating systems (preinstalled) (varies by model type)
Note: Not all countries or regions will have these operating systems.
v Microsoft
®
Windows
®
XP Home
v Microsoft Windows XP Professional
v Microsoft Windows 2000 Professional
Physical specifications
This section details the physical specifications for each computer Type.
Chapter 2. General information 5

Type 8316
Dimensions
Height: 104 mm (4.1 in.)
Width: 360 mm (14.2 in.)
Depth: 412 mm (16.2 in.)
Weight
Minimum configuration as shipped: 8.1 kg (18 lb)
Maximum configuration: 9.1 kg (20 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%
Electrical
input
Input voltage:
Low range:
Minimum: 90 V ac
Maximum: 180 V ac
Input frequency range: 47–53 Hz
Voltage switch setting: 115 V ac
High range:
Minimum: 137 V ac
Maximum: 265 V ac
Input frequency range: 57–63 Hz
Voltage switch setting: 230 V ac
Input kilovolt-amperes (kVA) (approximate):
Minimum configuration as shipped: 0.08 kVA
Maximum configuration: 0.25 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.
Heat output (approximate) in British thermal units (Btu)
per hour:
Minimum configuration: 257 Btu/hr (75 watts)
Maximum configuration: 683 Btu/hr (200 watts)
Airflow
Approximately 0.45 cubic meters per minute (16 cubic
feet per minute) maximum
Acoustical
noise-emission values
For microprocessors less than 2.8 GHz:
Average sound-pressure levels:
At operator position:
Idle: 28 dBA
Operating: 30 dBA
At bystander position - 1 meter (3.3 ft):
Idle: 27 dBA
Operating: 29 dBA
Declared (upper limit) sound-power levels:
Idle: 4.2 bels
Operating: 4.3 bels
For
microprocessors greater than or equal to 2.8 GHz:
Average sound-pressure levels:
At operator position:
Idle: 29 dBA
Operating: 31 dBA
At bystander position - 1 meter (3.3 ft):
Idle: 28 dBA
Operating: 29 dBA
Declared (upper limit) sound-power levels:
Idle: 4.3 bels
Operating: 4.4 bels
Note:
These 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.
6 Hardware Maintenance Manual

Type 8191
Dimensions
Height: 140 mm (5.5 in.)
Width: 425 mm (16.7 in.)
Depth: 425 mm (16.7 in)
Weight
Minimum configuration as shipped: 10.0 kg (22 lb)
Maximum configuration: 11.4 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%
Electrical
input
Input voltage:
Low range:
Minimum: 90 V ac
Maximum: 180 V ac
Input frequency range: 47–53 Hz
Voltage switch setting: 115 V ac
High range:
Minimum: 137 V ac
Maximum: 265 V ac
Input frequency range: 57–63 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.
Heat output (approximate) in British thermal units (Btu)
per hour:
Minimum configuration: 257 Btu/hr (75 watts)
Maximum configuration: 785 Btu/hr (230 watts)
Airflow
Approximately 0.51 cubic meters per minute (18 cubic
feet per minute) maximum
Acoustical
noise-emission values
Average sound-pressure levels:
At operator position:
Idle: 30 dBA
Operating: 32 dBA
At bystander position - 1 meter (3.3 ft):
Idle: 26 dBA
Operating: 30 dBA
Declared (upper limit) sound-power levels:
Idle: 4.0 bels
Operating: 4.3 bels
Note: These 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.
Chapter 2. General information 7

Types 2296 and 8434
Dimensions
Height: 398 mm (15.67 in.)
Width: 180 mm (7.08 in.)
Depth: 402 mm (15.82 in.)
Weight
Minimum configuration as shipped: 7.6 kg (16.8 lb)
Maximum configuration: 9.97 kg (22 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%
Electrical
input
Input voltage:
Low range:
Minimum: 90 V ac
Maximum: 180 V ac
Input frequency range: 47–53 Hz
Voltage switch setting: 115 V ac
High range:
Minimum: 137 V ac
Maximum: 265 V ac
Input frequency range: 57–63 Hz
Voltage switch setting: 230 V ac
Input kilovolt-amperes (kVA) (approximate):
Minimum configuration as shipped: 0.08 kVA
Maximum configuration: 0.30 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.
Heat output (approximate) in British thermal units (Btu)
per hour:
Minimum configuration: 257 Btu/hr (75 watts)
Maximum configuration: 785 Btu/hr (230 watts)
Airflow
Approximately 0.68 cubic meters every minute (24
cubic feet every minute) maximum
Acoustical
noise-emission values
For microprocessors less than 2.8 GHz:
Average sound-pressure levels:
At operator position:
Idle: 28 dBA
Operating: 35 dBA
At bystander position - 1 meter (3.3 ft):
Idle: 25 dBA
Operating: 33 dBA
Declared (upper limit) sound-power levels:
Idle: 4.0 bels
Operating: 4.7 bels
For
microprocessors greater than or equal to 2.8 GHz:
Average sound-pressure levels:
At operator position:
Idle: 33 dBA
Operating: 35 dBA
At bystander position - 1 meter (3.3 ft):
Idle: 30 dBA
Operating: 33 dBA
Declared (upper limit) sound-power levels:
Idle: 4.4 bels
Operating: 4.7 bels
Note:
These 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.
8 Hardware Maintenance Manual

Types 8198 and 8199
Dimensions
Height: 413 mm (16.25 in.)
Width: 191 mm (7.5 in.)
Depth: 406 mm (16 in.)
Weight
Minimum configuration as shipped: 9.1 kg (20 lb)
Maximum configuration: 11.4 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%
Electrical
input
Input voltage:
Low range:
Minimum: 90 V ac
Maximum: 180 V ac
Input frequency range: 47–53 Hz
Voltage switch setting: 115 V ac
High range:
Minimum: 137 V ac
Maximum: 265 V ac
Input frequency range: 57–63 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.
Heat output (approximate) in British thermal units (Btu)
per hour:
Minimum configuration: 257 Btu/hr (75 watts)
Maximum configuration: 785 Btu/hr (230 watts)
Airflow
Approximately 0.68 cubic meters per minute (24 cubic
feet per minute) maximum
Acoustical
noise-emission values
Average sound-pressure levels:
At operator position:
Idle: 28 dBA
Operating: 30 dBA
At bystander position - 1 meter (3.3 ft):
Idle: 26 dBA
Operating: 29 dBA
Declared (upper limit) sound-power levels:
Idle: 4.1 bels
Operating: 4.3 bels
Note: These 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.
Chapter 2. General information 9

10 Hardware Maintenance Manual

Chapter 3. General Checkout
This general checkout procedure is for Type 2296, 8191, 8198, 8199, 8316, and 8434
computers.
Note: The fans in this system may turn off under normal operation. This is a
noise-level reduction feature, and should not be taken to mean there is
something wrong with the system.
The following tools are available to help identify and resolve hardware-related
problems.
v IBM Setup Utility program
v Power-On Self-Test (POST)
– POST Beep Codes
– Error Code Format
v
IBM Enhanced Diagnostics program
v Product recovery utility
– Factory Contents
– Partial recovery
v
Repair utility
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
Chapter 4, “IBM Enhanced Diagnostics,” on page 15.
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.
© Copyright IBM Corp. 2004 11

Notes:
v Type 2296, 8191, 8198, 8199, 8316, and 8434 computers default to come up quiet (no beep
and no memory count and checkpoint code display) when no errors are detected by
POST.
v To enable beep and memory count and checkpoint code display when a successful POST
occurs, do the following:
1. Select Start Options in the IBM Setup Utility program (see Chapter 5, “IBM Setup
Utility program,” on page 21).
2. Set Power-On Self-Test to Enhanced.
v
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 111.
v If multiple error codes are displayed, diagnose the first error code displayed.
v If the computer hangs with a POST error, go to Chapter 7, “Symptom-to-FRU Index,” on
page 69.
v If the computer hangs and no error is displayed, go to “Undetermined problems” on
page 108.
v 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. 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:
v Readable instructions or the Main Menu.
DID
YOU RECEIVE THE CORRECT RESPONSE?
If NO, continue to 002.
If YES, proceed to 003.
002
If the Power Management feature is enabled, do the following:
1. Start the IBM Setup Utility program (see Chapter 5, “IBM Setup Utility
program,” on page 21).
2. Select Power Management from the IBM 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 (→) 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.
12 Hardware Maintenance Manual

003
Run the Diagnostic programs. If necessary, refer to Chapter 4, “IBM Enhanced
Diagnostics,” on page 15.
v If you receive an error, replace the part that the diagnostic program calls out or
go to Chapter 7, “Symptom-to-FRU Index,” on page 69.
v If the test stops and you cannot continue, replace the last device tested.
Chapter 3. General Checkout 13

14 Hardware Maintenance Manual