Small Form Factor and Net PC Models
Guide to Features
& Upgrades
Compaq Deskpro EN Series of Personal Computers
Small Form Factor and Net PC Models
Notice
The information in this guide is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE
FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS
CONTAINED HEREIN; NOR FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE
FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.
This guide contains information protected by copyright. No part of this
guide may be photocopied or reproduced in any form without prior written
consent from Compaq Computer Corporation.
1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq and Deskpro are registered in the U. S. Patent and Trademark Office.
Microsoft, MS-DOS, Windows, Windows NT, and other names of Microsoft
products referenced herein are trademarks or registered trademarks of Microsoft
Corporation.
Intel and Pentium are registered trademarks of Intel Corporation.
MMX is a trademark of Intel Corporation.
Product names mentioned herein may be trademarks and/or registered
trademarks of their respective companies.
The software described in this guide is furnished under a license agreement
or nondisclosure agreement. The software may be used or copied only in
accordance with the terms of the agreement.
Guide to Features & Upgrades
Compaq Deskpro EN Series of Personal Computers
Small Form Factor and Net PC Models
First Edition (July 1998)
Part Number 314127-001
Compaq Computer Corporation
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CONTENTS
preface
Using This Guide
Symbols and Conventions ........................................................................................................... v
Environmental Commitment ...................................................................................................... vi
chapter 1
The Computer at a Glance
Computer Features....................................................................................................................1-1
Front Panel Components .......................................................................................................... 1-3
Rear Panel Components............................................................................................................1-4
Drive Positions ......................................................................................................................... 1-5
Using the Compaq Enhanced Keyboard...................................................................................1-6
Windows Logo Key Functions ........................................................................................... 1-7
Keyboard Tilt Feet .............................................................................................................. 1-7
Graphics Capabilities................................................................................................................1-8
Customizing the Monitor Display ............................................................................................ 1-8
Using Windows 95..............................................................................................................1-8
Using Windows NT 4.0 ...................................................................................................... 1-9
Embedded 16-Bit Audio with PremierSound ......................................................................... 1-10
Locating the Serial Number....................................................................................................1-10
Turning Off Your Computer...................................................................................................1-11
chapter 2
Using Network Communications
Connecting to an Ethernet Network ......................................................................................... 2-3
Interpreting the Network Status Lights.....................................................................................2-4
Disabling the Autosensing Capabilities....................................................................................2-4
Installing the Network Drivers .................................................................................................2-5
Changing the Default Configuration...................................................................................2-5
chapter 3
Upgrading the Computer
Mounting the Computer............................................................................................................3-2
Self-Mounting Method ....................................................................................................... 3-2
Bracket Mounting Method..................................................................................................3-2
Drawer Installation Method ................................................................................................ 3-4
Device Installation Sequence....................................................................................................3-5
Guide to Features & Upgrades iii
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Guide to Features & Upgrades
When to Reconfigure the Computer ......................................................................................... 3-6
Removing the Computer Cover ................................................................................................ 3-6
Removing the Expansion Board Cage......................................................................................3-8
Installing an Expansion Board..................................................................................................3-9
Upgrading Memory ................................................................................................................ 3-11
Upgrading Graphics Memory ................................................................................................. 3-16
Upgrading the Hard Drive ...................................................................................................... 3-17
Installing Drives ..................................................................................................................... 3-19
Removing the Bezel Blank ............................................................................................... 3-19
Installing a CD-ROM Drive..............................................................................................3-20
Smart Cover Lock...................................................................................................................3-23
Using the Smart Cover FailSafe Key................................................................................3-23
Installing the Cable Lock Provision ....................................................................................... 3-26
Replacing the Battery ............................................................................................................. 3-27
appendix A
Specifications ..................................................................................................................................... A-1
appendix B
System Board Jumpers and Switches ............................................................................................. B-1
Index ............................................................................................................................... ...................... I-1
iv Contents
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Guide to Features & Upgrades
preface
U S I N G THIS GUIDE
This Guide to Features & Upgrades includes general
information about your computer, troubleshooting and
diagnostics information, and technical specifications.
Symbols and The following format conventions distinguish elements of the
text throughout this guide:
Conventions
When keys must be pressed at the same time, the action is
s
represented by the key names and the plus (+) symbol. For
example, Ctrl+Alt+Delete.
The names of files are presented in uppercase italic type as
s
shown here: FILENAME.
The names of commands, folders, or directories are
s
presented in uppercase type as shown here: COMMAND or
DIRECTORY. Commands that are to be entered at the
system prompt are shown on a separate line.
When you are asked to type something without pressing the
s
Enter key, you are directed to "type" the information.
When you need to type information and press the Enter key,
s
you will be directed to "enter" the information.
When you need to make a selection with a mouse, you will
s
be directed to "select" or "click" the information.
Guide to Features & Upgrades v
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The following words and symbols mark special messages
throughout this guide:
WARNING: Text set off in this manner indicates that failure to
! follow directions could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to
follow directions could result in damage to equipment or loss of
information.
Text set off in this manner presents clarifying information,
specific instructions, commentary, sidelights, or points of
information.
Environmental Compaq is committed to making environmentally friendly
products. Your computer was produced in a
Commitment
chlorofluorocarbons (CFC)-free factory. All plastics used in the
product are stamped with material composition to make
recycling more efficient. Reduce, reuse, and recycle are words
to live by at Compaq.
vi Using This Guide
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1
chapter
T H E COMPUTER AT A GLANCE
The Compaq Deskpro EN Series, Small Form Factor and Net
PC models, is a line of full-featured PCs in a small, highly
integrated design offering leading manageability, serviceability,
and consistency. Each computer is designed for easy
deployment in small workspace environments. An optional
mounting bracket allows you to mount the computer on, under,
or adjacent to your work surface in a horizontal or vertical
orientation to save desk space. (See Chapter 3, "Upgrading the
Computer," for more information on mounting.)
Your computer combines an Intel processor with a generous
hard drive and system memory of up to 256 megabytes (MB) of
standard synchronous dynamic random access memory
(SDRAM). In addition, special features include integrated AGP
graphics, integrated network interface, and integrated audio.
Upgrades are simple due to a slide-out system board and tool-
less removal of most internal components. This chapter
describes the features and components of your computer.
Computer Features Intel processor
s
512-kilobyte standard secondary (L2) cache on some
s
models
SDRAM expandable up to 256 megabytes, installed in dual
s
inline memory modules (DIMMs)
Integrated ATI RAGE PRO TURBO AGP 2X Graphics;
s
includes 4-megabytes synchronous graphics random access
memory (SGRAM), expandable to 8-megabytes SGRAM
Embedded 16-bit full duplex audio with PremierSound
s
Software-controllable Smart Cover Lock
s
Microsoft Windows 95 or Microsoft Windows NT 4.0
s
Workstation operating system
Fixed storage includes a hard drive
s
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Removable storage includes a 3.5-inch, 1.44-MB diskette
s
drive (Small Form Factor models)
Compaq Slimline 24X Max CD-ROM Drive on select
s
models (Small Form Factor models)
Integrated Compaq 10/100 TX NIC Intel WOL UTP PCI
s
Controller with Remote Wakeup, including RJ-45 cable
interface
Compaq Enhanced Keyboard
s
Two expansion slots - one PCI slot and one PCI/ISA combo
s
expansion slot (Small Form Factor models)
Two PCI expansion slots (Net PC models)
s
Three expansion drive bays - one 1.44-MB diskette drive,
s
one Compaq Slimline 24X CD-ROM Drive, and one
internal hard drive (Small Form Factor models)
One internal hard drive only (Net PC models)
s
90-watt continuous power supply
s
Compaq-supplied drivers and utilities
s
Intelligent Manageability, including Initial Configuration and
s
Deployment, Asset Tracking and Security, Software Updating
and Management, and Fault Notification and Recovery
1-2 The Computer at a Glance
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Front Panel
Components
1 Power Button
2 Diskette Drive Activity Light
3 Diskette Eject Button
4 CD-ROM Eject Button
5 CD-ROM Manual Eject Hole
6 Hard Drive Activity Light
7 Power-On Light
Note: Net PC models do not feature a diskette drive or CD-ROM drive.
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Rear Panel Components
1 Voltage Select Switch Switches voltage between 115V and 230V to match
geographical requirements.
2 Ethernet RJ-45 Activity Lights Blinks yellow when linking to the network; blinks green
during network activity.
3 Power Cord Connector Connects the computer to an electrical power outlet.
4 Serial Connector 1 Connects a serial device, such as a serial mouse or
scanner.
5 Line Out Connector Connects external speakers.
6 Microphone Connector Connects a microphone.
7 Universal Serial Bus (USB) Connectors Connect the computer to any USB devices while the
computer is operating; a fully functional plug and play
connector.
8 Parallel Connector Connects a parallel device, such as a parallel printer.
9 Ethernet RJ-45 Connector Connects the Ethernet network, using an RJ-45 cable.
: Serial Connector 2 Connects a serial device, such as a serial mouse or
scanner.
; Mouse Connector Connects the mouse (green-colored connector).
< Keyboard Connector Connects the keyboard (orange-colored connector).
= Monitor Connector Connects a monitor (black-colored connector).
1-4 The Computer at a Glance
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WARNING: This equipment is designed for connection to a grounded (earthed) outlet. The grounding type plug
! is an important safety feature. To avoid the risk of electrical shock or damage to your equipment, do not disable
this feature.
Drive Positions
1 Standard 3.5-inch, third-height, 1.44-MB diskette drive
2 Optional CD-ROM drive*
3 Standard hard drive bay (3.5-inch, third-height)
Note: Net PC models do not feature a diskette drive or CD-ROM drive.
*This bay accepts only the Compaq Slimline 24X CD-ROM Drive.
To verify the type and size of the mass storage devices installed
in your computer, run Compaq Computer Setup. Refer to the
Software Reference Guide for more information.
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Using the Compaq
Enhanced Keyboard
1 Ctrl Used in combination with another key; its effect depends on the application
software you are using.
2 Windows Used to open the Start menu in Microsoft Windows 95 and Windows NT
Logo* Workstation 4.0. Used in combination with other keys to perform other
functions (see the following table).
3 Alt Used in combination with another key; its effect depends on the application
software you are using.
4 Application* Used (like the right mouse button) to open pop-up menus in a Microsoft Office
application. May perform other functions in other software applications.
*Keys available in select geographic regions.
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Windows Logo Key You may use the Windows Logo keys in combination with other
Functions keys to perform certain functions in Windows 95 and Windows
NT Workstation 4.0, as shown in the following table:
Windows logo key + F1 Displays a pop-up menu for the selected object.
Windows logo key + Tab Activates the next Taskbar button.
Windows logo key + E Launches Explore My Computer.
Windows logo key + F Launches Find Files or Folders.
Windows logo key + Ctrl+F Launches Find Computer.
Windows logo key + M Minimizes all open applications.
Shift + Windows logo key + M Undoes Minimize All.
Windows logo key + R Displays Run dialog box.
Keyboard Tilt Feet The keyboard has feet on the bottom to tilt the keyboard to a
comfortable typing angle.
Keyboard Tilt Feet
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Graphics Your computer features an integrated ATI RAGE PRO TURBO
AGP 2X Graphics controller shipped standard with 4 megabytes
Capabilities
of SGRAM and is upgradable to 8 megabytes of SGRAM.
This controller is a high-performance AGP graphics controller,
offering 3D graphics support. The quality of the picture you see
depends on the resolution capabilities of your monitor and the
number of colors that the graphics controller can display.
The graphics controller supports the following resolutions and
number of colors:
Resolution 4-MB SGRAM 8-MB SGRAM
1600 1200 65,536 16.7 million
1280 1024 16.7 million 16.7 million
1024 768 16.7 million 16.7 million
800 600 16.7 million 16.7 million
640 480 16.7 million 16.7 million
Customizing the If you choose to customize your monitor display, you can
manually select or change the monitor brand, model, refresh
Monitor Display
rates, color, resolution, and power management settings.
Using Windows 95
1. Click Start, then click Settings.
2. Click Control Panel, then select the Display icon.
3. Click the Settings tab.
4. In the Desktop Area box, drag the Screen pointer to the
desired resolution.
The two pointers in the Desktop Area box, Screen and
Desktop, allow you to set virtual desktop modes. Screen
changes the size of the actual monitor image, and Desktop
changes the size of the Windows desktop. If you set the
Desktop size larger than the Screen size, you can move
the Screen to cover different portions of the Desktop by
moving the mouse off the edge of the Screen, also known
as panning.
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5. In the Color Palette box, select the number of colors you
want to display.
6. Click the ATI Adjustment tab, then select Refresh Rate to
change the refresh rate.
7. Click OK for the changes to take effect.
Using Windows NT 4.0
1. Click Start, then click Settings.
2. Click Control Panel, then select the Display icon.
3. Click the Settings tab.
4. In the Desktop Area box, drag the Screen pointer to the
desired resolution.
The two pointers in the Desktop Area box, Screen and
Desktop, allow you to set virtual desktop modes. Screen
changes the size of the actual monitor image, and Desktop
changes the size of the Windows desktop. If you set the
Desktop size larger than the Screen size, you can move
the Screen to cover different portions of the Desktop by
moving the mouse off the edge of the Screen, also known
as panning.
5. In the Color Palette box, select the number of colors you
want to display.
6. Select List All Modes and choose a mode from the list of
valid modes. Click OK for the changes to take effect.
7. Click Test to test the changes made to the display settings.
8. Click Yes if the test bitmap was properly displayed.
9. Click OK for the changes to take effect.
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Embedded 16-Bit The Deskpro PremierSound audio system provides an
integrated, "no desktop clutter" audio solution delivering
Audio with
exceptional sound output and clarity. The Deskpro
PremierSound PremierSound audio system is comprised of four sections, each
individually optimized to work as a complete audio solution.
The core subsystems incorporated into the Deskpro
PremierSound audio design are:
High performance speaker
s
Low distortion 5-watt RMS amplifier
s
Six stages of fixed equalization
s
Electrical gain staging that optimizes output and lowers
s
distortion of audio signal
Locating the Provide the computer serial number to Compaq when
requesting information or ordering spare parts. The serial
Serial Number
number is displayed on the rear of the computer 1 and on the
top, right-hand corner of the computer cover 2.
Locating the Serial Number
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Turning Off Your To exit Windows and automatically turn off the computer, click
Start, then click Shut Down.
Computer
In Windows NT Workstation 4.0, the power button always
functions as an on/off switch. In Windows 95, however,
pressing the power button does not turn off power altogether,
but instead causes the computer to enter a low-power standby.
This allows you to quickly power down without closing
applications and to quickly return to the same operational state
without any data loss. If you want to turn off power altogether,
hold the power button in for four seconds or more.
To reconfigure the power button to work as an instant on/off
switch instead, run Computer Setup. (See the Software
Reference Guide for instructions.)
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2
chapter
U S I N G NETWORK COMMUNICATIONS
Access to a computer network immediately increases your
productivity potential. Your computer is network ready, which
means it has an embedded network controller and preinstalled
network device drivers. Once the network connection is active,
you can share resources such as a printer, exchange information
from computer to computer, and run common software
programs.
The computer is configured, by default, with the following boot
order:
1 CD-ROM Drive: Allows the computer to boot from the
CD-ROM drive, if present.
2 Diskette Drive: On models with a diskette drive, allows the
computer to boot from this drive. On models without a
diskette drive, allows the computer to share a diskette drive
installed in a second computer connected through a serial
cable. If there is no second computer connected, the
computer will boot from the internal hard drive.
The second computer must have optional FDS software
installed in order to establish a serial connection and
enable the computer to use the diskette drive.
3 Hard drive: Allows the computer to boot from the internal
hard drive. If the internal hard drive does not have operating
system software installed on it, the computer will attempt to
boot from the network.
To bypass the removable media drives and boot directly
from the network, turn on or restart the computer. When
the F12=Network Service Boot message appears, press
F12.
4 Network: Allows the computer to boot from a server
running a supported PC LAN management tool in order to
set up a new hard drive, reinstall operating system software,
or reset the default configuration.
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To alter the boot order, run Computer Setup. See the
Software Reference Guide for instructions.
The Integrated Compaq 10/100 TX NIC Intel WOL UTP PCI
Controller automatically senses the data throughput speed of the
network, 10Base-T or 100Base-TX, and configures itself
appropriately.
100 Base-TX operation requires the use of a Category 5
UTP cable with an RJ-45 network connection.
The controller also supports Remote Wakeup and Remote ROM
Flash. These features allow the system administrator to power
on a client computer, or to safely upgrade a client computer's
Read Only Memory (ROM), from a remote location through the
use of supported PC LAN management tools.
For more information on Remote Wakeup and Remote
ROM Flash, refer to the Software Reference Guide or to
the online Remote Management Guide. The Remote
Management Administrators Guide is included with the
Remote Management Administration Tools, and is
available on the Support Software CD for Compaq
Desktop, Portable, and Workstation Products or at the
Compaq Web Site at www.compaq.com.
2-2 Using Network Communications
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Connecting to an An RJ-45 (8-pin) Ethernet connector is built into the computer
on the rear panel. To connect to an Ethernet network:
Ethernet Network
1. Using the network cable appropriate for your network,
connect one end of the network cable to the Ethernet
RJ-45 Connector 1 on your computer.
2. Ensure that both connections are secure.
The following illustration shows the Ethernet RJ-45 activity
lights 2. The yellow light blinks when linking to the network;
the green light blinks during network activity.
Network Connections and Status Lights
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Interpreting the The rear panel has two network status lights for the RJ-45
connector. The yellow link light will illuminate when the
Network Status
network driver is properly configured and the system is
Lights physically connected to an active network.
The green activity light illuminates when the computer detects
network activity. When the system is connected to a highly used
network, the green activity light will remain on almost
constantly.
If Remote Wakeup is enabled, the link and activity lights will
remain functional even when power to the computer is turned
off, as long as the computer's power cord is still connected to a
power outlet.
Disabling the Your computer automatically senses whether the attached
network supports 10 Mbs or 100 Mbs and configures itself
Autosensing
accordingly. This process of determining the maximum network
Capabilities operating speed is known as autosensing. The computer begins
autosensing whenever it loses a valid network link, for example,
if the cable is disconnected.
In addition to determining the network operating speed, the
computer determines if full-duplex is supported. Full-duplex
systems can transmit and receive information on the network
simultaneously. Half-duplex systems cannot transmit and
receive simultaneously. The different modes of operation are:
100Base-TX, full-duplex
s
100Base-TX, half-duplex
s
10Base-T, full-duplex
s
10Base-T, half-duplex
s
If necessary, you can disable the autosensing capabilities and
force the system into a different operating mode. To set the
network operating mode manually:
1. Click on the Network icon, located in the Control Panel.
2. Click on the Integrated Compaq 10/100 TX NIC Intel
WOL UTP PCI Controller.
3. Select the Advanced Properties tab.
2-4 Using Network Communications
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4. Select Media Speed and change the value from AUTO to
10 Mbs or 100 Mbs, depending on the capabilities of your
network.
5. Select Duplex Settings and change the value from AUTO
to Full or Half, depending on the capabilities of your
network.
6. Exit the Network control application.
You will be prompted to restart your computer in order for
the changes to take effect.
Installing the The device drivers in the network software enable the computer
to communicate with the network.
Network Drivers
Device drivers are supplied for Windows 95 and
Windows NT Workstation 4.0. If you are using another
operating system, device drivers may be installed from
files included with the network operating system or
device driver files available from Compaq. Updated
device drivers may also be downloaded from the Compaq
Web Site, www.compaq.com.
If reinstallation of the device drivers on Small Form
Factor models ever becomes necessary, use your backup
diskettes or the Compaq Restore CD. If you did not create
backup diskettes, then order these diskettes from
Compaq, using the information in the Software Reference
Guide.
Use network management tools to reinstall device drivers
on Net PC models.
Complete instructions for installing the network device drivers
are available in the file C:\CPQNET\README.TXT.
Changing the Default Configuration
To change the default configuration settings, run Computer
Setup. Refer to the Software Reference Guide for more
information.
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3
chapter
U P G R A D I N G THE COMPUTER
Compaq Deskpro EN Series, Small Form Factor and Net PC
models, make upgrades and service easy with a slide-out system
board and tool-less access to most internal components. Quick
release cover latches, located on the sides of the computer, allow
easy removal of the computer cover without the use of tools.
This chapter describes the following procedures needed for
upgrades or service of the computer:
Mounting the computer
s
Device installation sequence
s
Removing the computer cover
s
Removing the expansion board cage
s
Installing an expansion board
s
Upgrading memory
s
Upgrading graphics memory
s
Installing drives
s
Using the Smart Cover Lock and Smart Cover Failsafe Key
s
Installing a cable lock
s
Replacing the battery
s
This chapter also includes information about reconfiguring
newly installed equipment.
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You can install the computer on, under, or beside your
Mounting the workspace. There are three methods of installation: the self-
mounting method, the bracket mounting method, and the
Computer
drawer installation method.
A mounting bracket is an option available from Compaq.
Self-Mounting Method
The self-mounting method requires removing the system board.
Compaq recommends that you contact your authorized Compaq
dealer or service provider when using this installation.
CAUTION: Do not mount the computer upside down when using
this procedure.
Bracket Mounting Method
The computer may be mounted in a horizontal or vertical mode
using the mounting bracket available from Compaq. Refer to the
documentation included with the mounting bracket for complete
installation procedures.
CAUTION: Make sure you use the correct fasteners to suit the
material to which the mounting bracket will be installed. Failure to
select the proper fasteners may result in damage to the computer.
CAUTION: Do not mount the computer upside down when using
this procedure.
3-2 Upgrading the Computer
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Vertical Mounting Bracket Method
Horizontal Mounting Bracket Method
Guide to Features & Upgrades 3-3
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Drawer Installation Method
When installing the computer chassis in a drawer, the following
conditions must be met to ensure proper air flow:
At least three inches (7.6 cm) of clear space between the
s
back of the drawer and anything behind it, such as a wall or
the back panel of a desk.
At least two 2-inch (5.1-cm) diameter holes in the back of
s
the drawer. One hole must be immediately behind the power
supply for exhaust air, and the other should be used for
routing the cables.
CAUTION: Cables should not be run through the exhaust air
hole.
At least nine holes in the front drawer panel or in the bottom
s
of the drawer in front of the chassis for fresh air intake. The
diameter of the holes must be between 0.38 and 0.5 inch
(1.0 and 1.3 cm).
If vent holes are located in the bottom of the mounting
s
drawer, allow at least one inch of clear space below the
drawer to ensure proper air flow.
At least one inch of clear space above the top of the chassis.
s
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Device Installation It is very important that you follow this sequence of steps to
ensure the proper installation of any optional equipment:
Sequence
1. If you have locked the Smart Cover Lock, use
Computer Setup to unlock it. For more information
about Computer Setup, refer to the Software Reference
Guide.
2. Remove any diskette or compact disc from the computer.
3. Turn off the computer and any devices connected to it.
4. Disconnect the power cord from the power outlet and then from
the computer.
5. Disconnect the keyboard, monitor, and other external devices
connected to the computer.
During disassembly, label each external device cable as
you remove it, noting its position and routing. Keep all
screws with the units removed.
WARNING: To reduce the risk of personal injury from electrical
! shock and/or hot surfaces, be sure to disconnect the power cord
from the power outlet, and allow the internal system components
to cool before touching.
WARNING: To reduce the risk of electrical shock, fire, or damage
! to the equipment, do not plug telecommunications/telephone
connectors into the network interface controller (NIC) receptacles.
CAUTION: Before servicing the computer, be sure that no green
lights are illuminated on the system board.
CAUTION: When the unit is plugged in, the power supply always
has 5 V applied to the system board even when the unit is turned
off. Failure to disconnect the power cord can result in damage to
the system.
CAUTION: Static electricity can damage the electronic
components of the computer or optional equipment. Before
beginning these procedures, ensure that you are discharged of
static electricity by briefly touching a grounded metal object. Refer
to the Safety, Care & Regulatory Information guide for more
information.
6. Open the computer by removing its cover. Refer to
"Removing the Computer Cover" in this chapter for
instructions.
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7. Install any optional equipment. Refer to the applicable
sections of this chapter and to the documentation included
with the optional equipment for instructions.
8. Replace the computer cover.
9. Turn on the monitor, computer, and any external devices.
10. Reconfigure the computer, if necessary.
11. If you normally lock the Smart Cover Lock, relock it using
Computer Setup.
When to System configuration is the process of specifying the devices
and programs that make up a computer system. When you add
Reconfigure the
or remove optional equipment, you must reconfigure the
Computer computer to recognize these changes.
If you install a plug and play device, Windows 95 automatically
recognizes the device and configures the computer. If you install
a nonplug and play device, or if the device is not automatically
detected after installation, you must reconfigure the computer
after completing installation of the hardware. In Windows 95,
select the Add New Hardware icon in the Control Panel and
follow the instructions on the screen.
To reconfigure the computer in Windows NT Workstation 4.0,
use the software utility provided with the newly installed
hardware.
To install optional equipment, you must remove the computer
Removing the cover to gain access to internal components. The quick release
cover latches located on the sides of the computer allow easy
Computer Cover
removal of the computer cover without the use of tools. To
remove the cover, follow these steps:
1. If you have locked the Smart Cover Lock, use Computer
Setup to unlock it.
2. Turn off the computer and any external devices.
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3. Disconnect the power cord from the power outlet, and
disconnect any external devices.
WARNING: Before removing the computer cover, ensure that the
! computer is turned off and that the power cord is disconnected
from the electrical outlet.
4. Press in the button on each side of the front bezel to release
the quick release cover latches.
5. Slide the computer cover forward about 1 inch (2.5 cm),
then lift it up and off the unit.
To replace the cover, reverse this procedure.
Removing the Computer Cover
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Removing the To remove the expansion board cage:
Expansion Board 1. If you have locked the Smart Cover Lock, use
Cage Computer Setup to unlock it.
2. Turn off the computer and any external devices.
3. Disconnect the power cord from the power outlet, and
disconnect any external devices.
4. Remove the computer cover.
5. Pull the expansion board cage straight up to remove it from
the chassis.
Removing the Expansion Board Cage
When reinstalling the expansion board cage, ensure that
the tab on the brace latches into the slot on the side of the
power supply.
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The Net PC models have two PCI expansion slots 1 located on
Installing an the expansion board cage; Small Form Factor models have one
PCI/ISA combination expansion slot 2 and one PCI expansion
Expansion Board
slot 1. Each slot can accommodate an expansion board up to
seven inches (17.8 cm) in length. To install an expansion board:
1. If you have locked the Smart Cover Lock, use Computer
Setup to unlock it.
2. Turn off the computer and any external devices.
3. Disconnect the power cord from the power outlet, then
disconnect any external devices.
4. Remove the computer cover.
5. Remove the expansion board cage and identify the slot into
which you want to insert the expansion board.
Location of Expansion Slots in the Expansion Board Cage
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6. Remove the retaining screw that secures the slot cover to
the expansion board cage, then remove the slot cover.
Removing the Retaining Screw and Expansion Slot Cover
7. Install the expansion board.
Installing an Expansion Board
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When you install an expansion board, make sure you
press firmly on the board so that the whole connector
seats properly in the expansion board slot.
8. Reinstall the screw to secure the board.
Upgrading Memory The computer comes with synchronous dynamic random access
memory (SDRAM) dual inline memory modules (DIMMs)
installed and supports up to 256 MB of memory. The memory
sockets on the system board can be populated with 8-, 16-, 32-,
64-, or 128-MB DIMMs. Self-refresh DIMMs are required.
For proper system operation, the DIMMs must be industry
standard 168-pin, 100-MHz or faster, unbuffered SDRAM
DIMMs. The SDRAM DIMMs must support CAS Latency 2 or
3 (CL = 2 or CL = 3). They must also contain the mandatory
Joint Electronic Device Engineering Council (JEDEC) Serial
Presence Detect (SPD) information. DIMMs constructed with
x4 SDRAM are not supported; the system will not start using
unsupported DIMMs.
If your system processor has a bus speed of 66 MHz, Compaq
recommends that any additional DIMMs also be 66 MHz. If the
system bus speed is 100 MHz, the use of 100-MHz DIMMs is
required. On the Compaq Deskpro EN Series Personal
Computer, Small Form Factor and Net PC models, processors
with speeds of 266 to 333 MHz have bus speeds of 66 MHz;
processors with speeds of 350 MHz or higher have bus speeds
of 100 MHz. You can also run Compaq Computer Setup to
determine your system bus speed. See the Software Reference
Guide for instructions.
The computer can accept standard DIMMs or Error
Checking and Correcting (ECC) DIMMs or a
combination of both. See the Software Reference Guide
for more information about using ECC DIMMs.
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CAUTION: Your DIMM sockets have gold metal contacts. When
upgrading your memory, it is important to use DIMMs with gold
metal contacts (not tin-lead) to prevent corrosion and/or oxidation
resulting from having incompatible metals in contact with each
other.
CAUTION: Static electricity can damage the electronic com-
ponents of the computer or optional boards. Before beginning
these procedures, ensure that you are discharged of static
electricity by briefly touching a grounded metal object. Refer to the
Safety, Care & Regulatory Information guide for more information.
CAUTION: When handling a memory module, be careful not to
touch any of the contacts. Doing so may damage the module.
To insert or remove a memory module:
1. If you have locked the Smart Cover Lock, use Computer
Setup to unlock it.
2. Turn off the computer and any external devices.
3. Disconnect the power cord from the power outlet, and
disconnect any external devices.
4. Remove the computer cover.
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5. Push in on the side of the easy access drive bay 1 and
rotate the drive bay to an upright position 2.
CAUTION: Check the position of all cables and wires before
raising or lowering the easy access drive bay to prevent damage.
Rotating the Easy Access Drive Bay
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6. Locate the DIMM sockets on the system board.
Locating the DIMM Sockets
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7. Press out on both latches of the DIMM socket at the same
time 1. This releases the module and partially pushes it out
of the socket.
8. Lift the module from the socket.
9. To install a memory module, reverse the procedure. Push
the module down 2 into the socket, ensuring that it is fully
inserted and properly seated 3.
Inserting a Memory Module
When the computer starts up, it will recognize the system
memory upgrade and automatically reconfigure the system.
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Upgrading Graphics The computer comes with 4 megabytes of graphics memory
preinstalled. You can add a 4-MB graphics memory module for
Memory
a total of 8 MB of graphics memory.
1. If you have locked the Smart Cover Lock, use Computer
Setup to unlock it.
2. Turn off the computer and any external devices.
3. Disconnect the power cord from the power outlet, and
disconnect any external devices.
4. Remove the computer cover.
5. Remove the expansion board cage.
6. Locate the graphics memory module socket on the system
board.
7. Install the memory module so that its notch aligns with the
tab in the socket at a 30 degree angle 1, then rotate the
module until it latches into position 2.
Installing an Upgrade Memory Module
8. Replace the computer cover.
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9. Change the resolution to take advantage of the additional
display modes now available with the upgraded memory.
Refer to "Customizing the Monitor Display" in Chapter 1
for more information.
Upgrading the Hard The 3.5-inch hard drive is located on the right side of the
computer. To remove and replace the drive:
Drive
1. If you have locked the Smart Cover Lock, use Computer
Setup to unlock it.
2. Turn off the computer and any external devices.
3. Disconnect the power cord from the power outlet, and
disconnect any external devices.
4. Remove the computer cover.
5. Remove the CD-ROM drive if present.
To access the hard drive, you must remove a CD-ROM
drive, if installed.
6. Disconnect the 1 power cable and 2 signal cable from the
back of the drive.
Disconnecting Cables from the Hard Drive
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7. Pull the locking lever on the left side of the drive to the left.
Slide the drive to the rear of the bay, then lift the drive
from the bay.
Removing the Hard Drive
When replacing the hard drive, transfer the four screws
from the old drive to the new one. There are two
shoulder-head screws on the left side of the drive and two
hi-top screws on the right side. The screws take the place
of drive rails.
If you have installed a hard drive that is not a plug and
play device or that is not automatically recognized by the
computer, refer to the "When to Reconfigure the
Computer" section of this chapter.
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Installing Drives Small Form Factor models have two external bays. One external
bay contains a preinstalled diskette drive that can be upgraded.
This section describes how to remove the bezel blank and install
a CD-ROM drive into the other external bay.
Net PC models have no removable media drives.
Removing the Bezel Blank
1. If you have locked the Smart Cover Lock, use Computer
Setup to unlock it.
2. Turn off the computer and any external devices.
3. Disconnect the power cord from the power outlet, and
disconnect any external devices.
4. Remove the computer cover.
5. Lay the cover top down on a protected work surface.
Squeeze the two tabs on the right side of the bezel blank.
6. Rotate the bezel blank clockwise and out of the front bezel.
To reinstall the bezel blank, reverse the procedure.
Removing the Bezel Blank (Inside View of Cover)
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Installing a CD-ROM Drive
To install an optional Compaq Slimline 24X Max CD-ROM
drive:
1. Install two guide screws on each side of the drive.
All screws are shoulder-head screws.
Installing Guide Screws in the CD-ROM Drive
2. Position the guide screws on the drive into the J-slots in the
drive bay. Slide the drive toward the front of the computer.
Ensure that the spring-loaded locking lever properly
secures the drive.
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3. Raise the easy access drive bay to the upright position and
connect the flat ribbon cable to the system board.
Connecting the Flat Ribbon Cable
4. Return the easy access drive bay to the normal position and
connect the ribbon cable to the rear of the drive. (If you
have also installed an audio board on the computer, connect
the audio cable from the P7 connector on the system board
to the audio board.)
The ribbon cable is a multifunction cable that carries
power, audio, and data between the system board and the
CD-ROM drive.
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Connecting the Ribbon Cable to the CD-ROM Drive
5. Remove the bezel blank from the front bezel.
6. Replace the computer cover.
7. The system will automatically recognize the Compaq
CD-ROM drive and will automatically reconfigure the
computer.
CAUTION: When servicing the computer, ensure that cables are
placed in their proper locations during the reassembly process.
Improper cable placement can damage the computer.
CAUTION: Use only 3/16-inch or 5-mm long screws as guide
screws. Longer screws can damage the internal components of the
drive.
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Smart Cover Lock The Smart Cover Lock is a software-controllable cover lock,
controlled by the setup password. This lock prevents
unauthorized access to the internal components. The computer
ships with the Smart Cover Lock in the unlocked position. For
more information about locking the Smart Cover Lock, refer to
the Software Reference Guide.
Using the Smart Cover FailSafe Key
If you enable the Smart Cover Lock and cannot enter your
password to disable the lock, you will need a Smart Cover
FailSafe Key to open the computer cover. You will need the key
in any of the following circumstances:
Power outage
s
Startup failure
s
PC component (e.g., processor or power supply) failure
s
Forgotten password
s
CAUTION: The Smart Cover FailSafe Key is a specialized tool
available from Compaq. Be prepared; order this key before you
need one.
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To obtain a FailSafe Key:
Contact your authorized Compaq reseller or service
s
provider.
Refer to the Compaq World Wide Web site
s
(www.compaq.com) for ordering information.
Call the appropriate number found in the Contacting
s
Customer Support guide.
To open the computer cover:
1. Turn off the computer and any external devices.
2. Disconnect the power cord from the power outlet, and
disconnect any external devices.
3. Using the Smart Cover FailSafe Key, remove the front
tamper-proof screw 1 located on the bottom right of the
computer and loosen the rear screw 2 securing the Smart
Cover Lock to the chassis.
Removing the Smart Cover Lock Screws
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4. Remove the computer cover.
To reattach the Smart Cover Lock, secure the lock in place by
replacing the front tamper-proof screw 2 and tightening the rear
screw 3.
Unlock the solenoid 1 before replacing the computer
cover.
Reattaching the Smart Cover Lock
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Installing the Cable The cable lock provision consists of a three-piece security
bracket. The bottom part of the bracket is attached to the
Lock Provision
computer with a screw; the top part of the bracket covers the
screw and prevents its removal.
1. Separate the pieces of the security bracket 1 by bending
the metal where the three pieces join.
2. Slide the tab on the narrow bracket 2 into the notch on the
back of the computer, then slide the U-shaped bracket 3
between the narrow bracket and the computer.
3. Secure the bracket with the screw provided 4.
4. Cover the screw with the flat portion of the bracket 5.
5. Install a lock 6 (not provided) to secure the top part of the
security bracket and inhibit access to the inside of the
computer. Install a cable lock (not provided) to inhibit
access to the inside of the computer and secure the
computer to a fixed object.
Attaching a Cable Lock
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Replacing the The battery that comes with your computer provides power to
the real-time clock and has a lifetime of about five years. When
Battery
replacing the battery, use a CR2032 or equivalent 3-volt lithium
coin cell battery.
1. If you have locked the Smart Cover Lock, use Computer
Setup to unlock it.
2. Turn off the computer and any external devices and
disconnect the power cord from the power outlet.
3. Remove the computer cover and locate the battery on the
system board.
Locating the Battery on the System Board
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4. Lift the battery out of its holder.
Removing the Coin Cell Battery
5. Slide the replacement battery into position with the "plus"
side up.
6. The battery holder automatically secures the battery in the
proper position.
7. Replace the computer cover.
8. Plug in the computer and turn on power.
9. If you normally lock the Smart Cover Lock, use Computer
Setup to relock it.
10. Reset the date and time, your passwords, and any special
system setups, using Compaq Computer Setup. Refer to the
Software Reference Guide.
WARNING: This computer contains a lithium-ion battery pack.
! There is a risk of fire and chemical burn if the battery pack is
handled improperly. Do not disassemble, crush, puncture, short
external contacts, dispose in water or fire, or expose it to
temperatures higher than 60C (140F).
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In North America, dispose of nickel metal hydride or
lithium-ion batteries by taking advantage of the
Compaq battery recycling program. You will be
provided with a postage-paid battery pack mailer
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