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Compaq 270680-003 Compaq Reference Guide Deskpro 4000 and Deskpro 6000 Series - Page 153

Removing the Power Supply

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Removing the Power Supply To remove the power supply, complete the following steps: ! WARNING: This procedure should be performed only by qualified personnel. Disconnect the power cord from the electrical outlet and the computer before removing the power supply. Failure to disconnect the power before opening the computer can result in personal injury or equipment damage. 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock. For more information about Computer Setup, refer to Chapter 8, "Using Compaq Utilities." 2. Turn off the computer, disconnect the power cord from the electrical outlet, then remove the side panel. 3. Disconnect the power connector from the system board and from any drives or other peripherals. Label each power connector, before disconnection, with the connection location. After doing this, you can easily reconnect power to the correct devices. Reference Guide 7-33

Section	Page
COMPAQ DESKPRO 4000/6000 REFERENCE GUIDE	1
Notice	3
Preface	5
USING THIS GUIDE	5
Symbols and Conventions	5
Environmental Commitment	6
THE COMPUTER AT A GLANCE	7
Features Common to All Models	7
Compaq Deskpro 4000 Features	8
Compaq Deskpro 6000 Features	8
Desktop Front and Rear Panel Components	9
Minitower Front and Rear Panel Components	12
Drive Positions	16
Using the Compaq Enhanced Keyboard	18
Turning Off Your Computer	21
UNDERSTANDING AND USING INTELLIGENT MANAGEABILITY	23
Intelligent Manageability	23
Asset Management	23
Enhanced Compaq Insight Personal Edition (Compaq Diagnostics for Windows)	24
Using Compaq Insight Personal Edition	25
Fault Management	26
SMART II Hard Drive Fault Prediction	26
Ultra ATA Integrity Monitoring	27
ECC Fault Prediction and Prefailure Warranty	27
Monitor Fault Diagnosis	28
Proactive Backup	28
Surge-Tolerant Power Supply	28
Thermal Sensor	29
Security Management	29
Password Security	31
Establishing a Setup Password Using Computer Setup	31
Establishing a Power-On Password in Windows 95	32
Establishing a Power-On Password in Windows NT	32
Establishing a Power-On Password Using Computer Setup	32
Entering a Power-On Password	33
Changing a Password	34
Deleting a Password	34
National Keyboard Delimiter Characters	35
Clearing a Power-On Password	35
Smart Cover Sensor	38
Setting the Smart Cover Sensor Protection Level	38
Smart Cover Lock	39
Locking the Smart Cover Lock	39
Unlocking the Smart Cover Lock	40
Using the Smart Cover FailSafe Key	40
QuickLock/QuickBlank	42
Enabling QuickLock and QuickBlank	42
Disabling the Keyboard and Mouse Interface	43
Enabling the Keyboard and Mouse Interface	43
Installing the Cable Lock Provision	44
Configuration Management	45
Remote ROM Flash	46
Upgrading Flash ROM	46
Using Remote ROM Flash	47
FailSafe Boot Block ROM	48
Remote Security Management	50
Remote Wakeup and Remote Shutdown	50
Replicated Setup	51
Using Replicated Setup	52
Dual-State Power Button	52
Establishing Power Management Settings	53
Enhanced Support Software CD and World Wide Web Site	53
Compaq Integrated Software	55
Universal Driver Manager	55
Ordering Backup Diskettes	56
Integration Management	56
Desktop Management Interface	56
Compaq Insight Manager and the Insight Management Agents	57
Compaq Management Solutions Partners Program	57
USING THE GRAPHICS FEATURES	59
Graphics Capabilities	59
Installing Matrox Power Desk Software	60
Changing Monitor Type Manually	60
S3 Enhanced 64-Bit Graphics with 3D Acceleration	60
Matrox Performance and Matrox Millennium-II Graphics Controller	61
Monitor Tab	61
Configuration Tab	62
Information Tab	62
About Tab	62
Changing Graphics Resolution and Monitor Refresh Rate	63
S3 Enhanced 64-Bit Graphics Controller with 3D Acceleration	63
Matrox Performance and Matrox Millennium-II Graphics Controller	63
Upgrading Graphics Capabilities	64
USING NETWORK COMMUNICATIONS	69
Identifying the Network Connectors	70
Enabling the AUI Connector	70
Connecting to an Ethernet Network	70
Interpreting the Network Status Lights	71
Disabling the Autosensing Capabilities	72
Installing the Network Drivers	73
Changing the Default Configuration	73
USING THE LS-120 AND CD-ROM DRIVES	75
Using the LS-120 Diskette Drive	75
Inserting and Removing Diskettes	75
Creating Windows Disks	76
Installing or Restoring Windows 95	77
Copying Diskettes	77
Formatting Diskettes	77
High-Level Format	77
Low-Level Format	78
Using the CD-ROM Drive	78
Inserting and Removing a CD-ROM or Compact Disc	79
Enhanced Business Audio	80
Using Audio Compact Discs	80
CD-ROM Drive Precautions	81
Operation	81
Cleaning	81
Safety	81
UPGRADING THE DESKTOP COMPUTER	83
Installation Sequence	83
When to Reconfigure the Computer	85
Serviceability Features	85
Using the Quick Release Cover Latches	85
Removing the Computer Cover	86
Replacing the Computer Cover	88
Removing the Front Bezel	88
Replacing the Front Bezel	89
Sliding Out the Drive Cage	90
Removing the Expansion Board Cage	91
Sliding Out the System Board Tray	92
Internal Components	94
Installing Additional Memory	98
Installing DIMM Modules	98
Removing DIMM Modules	100
Installing an Expansion Board	101
Removing an Expansion Slot Cover	101
Installing an Expansion Slot Cover	102
Installing a PCI or ISA Board	102
Installing a Speaker in the Expansion Board Cage	105
Installing Additional Drives	106
Using the Cable-Select Feature with Ultra ATA Devices	106
Installing SCSI Devices	107
Guidelines for Installing Optional SCSI Devices	107
Cabling for Optional SCSI Devices	109
Removing a Blank Drive Bezel	110
Installing a CD-ROM, Tape, or PD-CD Drive	111
Installing a 3.5-Inch Drive into a 5.25-Inch Drive Bay	114
Removing a Drive from the Drive Cage	117
Removing the Power Supply	117
Installing the Power Supply	118
Installing an External Infrared Transceiver	119
UPGRADING THE MINITOWER COMPUTER	121
Installation Sequence	121
When to Reconfigure the Computer	122
Serviceability Features	123
Removing the Side Panel	123
Replacing the Side Panel	124
Removing the Front Bezel	125
Replacing the Front Bezel	126
Removing the Expansion Board Cage	127
Sliding Out the System Board Tray	128
Internal Components	130
Installing Additional Memory	134
Installing DIMM Modules	134
Removing DIMM Modules	136
Installing an Expansion Board	137
Removing an Expansion Slot Cover	138
Installing an Expansion Slot Cover	138
Installing a PCI or ISA Board	138
Removing an Expansion Board	140
Installing a Speaker in the Expansion Board Cage	140
Installing Additional Drives	141
Using the Cable-Select Feature with Ultra ATA Devices	142
Installing SCSI Devices	142
Guidelines for Installing Optional SCSI Devices	142
Cabling for Optional SCSI Devices	144
Removing a Blank Drive Bezel	146
Installing a CD-ROM, Tape, or PD-CD Drive	146
Installing a 3.5-Inch Drive into a 5.25-Inch Drive Bay	149
Removing a Drive from the Drive Cage	152
Removing the Power Supply	153
Installing the Power Supply	154
Installing an External Infrared Transceiver	155
USING COMPAQ UTILITIES	157
Configuration and Diagnostics Utilities	157
When to Reconfigure Your Computer	158
Compaq Utilities	158
Using the Compaq Utilities Menu	158
Computer Setup	158
Using the Main Screen Menu Bar	163
Computer Checkup (TEST)	164
View System Information (INSPECT )	165
Create a Diagnostics Diskette	166
Exiting the Compaq Utilities Menu	166
TROUBLESHOOTING	167
Helpful Hints	167
Solving Minor Problems	168
Solving Disk Problems	169
Solving Display Problems	171
Solving Audio Problems	173
Solving Printer Problems	173
Solving Hardware Installation Problems	174
Solving Network Problems	174
Solving Memory Problems	177
Solving SCSI Problems	178
Solving CD-ROM Problems	179
Solving Software Problems	179
Solving Problems Using Local Alert Messages	179
Contacting Compaq Customer Support	182
Worldwide Telephone Numbers	182
AGENCY REGULATORY NOTICES	191
Federal Communications Commission Notice	191
Modifications	191
Cables	191
Mouse Compliance Statement	192
Declaration of Conformity (United States only)	192
Energy Star Compliance	192
European Notice	193
Canadian Notice	193
Avis Canadien	193
German Ergonomics Notice	194
Japanese Notice	194
Laser Safety	194
CDRH Regulations	194
Laser Information	195
Battery Notice	196
Power Cord Set Requirements	196
General Information	196
U.S. and Canada	197
Japan	197
Other Countries	198
SPECIFICATIONS	199
Computer	199
Diskette Drives	201
16X MAX CD-ROM Drive	202
24X MAX CD-ROM Drive	203
Hard Drives	204
Audio System	205
Network Cable	206
Cable for RJ-45 Connections	206
Cable for AUI Connections	206
ERROR MESSAGES	207
Power-On Self-Test (POST) Messages	207
CONNECTOR PIN ASSIGNMENTS	213
Enhanced Keyboard (orange-colored icon)	213
Pointing Device (Mouse, green-colored icon)	213
Parallel	214
Universal Serial Bus (USB)	215
Serial	215
External Infrared Transceiver Connector (yellow-colored icon)	216
Monitor	216
Ultra SCSI Connector	217
Ethernet RJ-45	218
Ethernet AUI	218
Line In-Connector	219
Line Out-Connector	219
Microphone Connector (blue-colored icon)	219
Headphone Connector	219
SYSTEM BOARD SWITCHES	221
Disabling and Enabling the Power- On Password	222
Setting System Board Switches when Upgrading a Processor	223
Using a Power Strip to Control Power	223
ELECTROSTATIC DISCHARGE	225
Preventing Electrostatic Discharge	225
Grounding Methods	225
INSTALLING A NEW BATTERY	227
Recording Hard Drive Parameters	227
Preparing the Computer for Installation	228
Installation Procedures	228