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, 1999 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.
Celeron and MMX are trademarks 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 EP Series of Personal Computers
Third Edition (March 1999)
First Edition (April 1998)
Part Number 166811-003
Compaq Computer Corporation
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CONTENTS
preface
Using This Guide
Symbols and Conventions ........................................................................................................... v
Environmental Commitment ...................................................................................................... vi
chapter 1
Computer at a Glance
Standard Configuration Features .............................................................................................. 1-1
Front Panel Components .......................................................................................................... 1-3
Rear Panel Connectors..............................................................................................................1-4
Drive Positions ......................................................................................................................... 1-5
Using the Compaq Enhanced Keyboard...................................................................................1-6
Windows Logo Key Combinations and Functions ............................................................. 1-7
Keyboard Tilt Feet .............................................................................................................. 1-7
Customizing the Monitor Display ............................................................................................ 1-8
Serial Number Location............................................................................................................1-9
Turning Off Your Computer.....................................................................................................1-9
chapter 2
Upgrading the Computer
Installation Sequence ................................................................................................................ 2-1
When to Reconfigure the Computer ......................................................................................... 2-2
Serviceability Features..............................................................................................................2-3
Removing the Computer Access Panel...............................................................................2-3
Removing the Front Bezel .................................................................................................. 2-4
Removing Bezel Blanks......................................................................................................2-4
Changing from a Desktop to a Minitower Configuration ................................................... 2-5
Changing from a Minitower to a Desktop Configuration ................................................... 2-9
Internal Components...............................................................................................................2-12
Installing Additional Memory ................................................................................................ 2-13
Installing an Expansion Board................................................................................................2-15
Removing an Expansion Slot Cover ................................................................................. 2-15
Installing an Expansion Board .......................................................................................... 2-16
Removing an Expansion Board .............................................................................................. 2-17
Upgrading Graphics Capabilities............................................................................................2-18
Guide to Features & Upgrades iii
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Installing Additional Drives ................................................................................................... 2-20
Using the Cable-Select Feature with Ultra ATA Devices ................................................ 2-20
Installing a CD-ROM, DVD-ROM, Tape, or PD-CD Drive ............................................ 2-21
Installing a 3.5-Inch Drive into a 5.25-Inch Drive Bay .................................................... 2-23
Removing a Drive from the Drive Bay...................................................................................2-26
Installing the Cable Lock Provision ....................................................................................... 2-27
Replacing the Battery ............................................................................................................. 2-29
appendix A
Specifications ..................................................................................................................................... A-1
appendix B
System Board Jumpers and Switches ............................................................................................. B-1
Index ..................................................................................................................................................... I-1
iv Contents
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166811-003
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 other points of
information.
Environmental Compaq is committed to making environmentally friendly
products. Your computer was produced in a chlorofluorocarbons
Commitment
(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.
Using This Guide
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1
chapter
C O M P U T E R AT A GLANCE
Standard Microsoft Windows or Windows NT Workstation
s
operating system software
Configuration
Features Intel Pentium III, Intel Pentium II, or Intel Celeron
s
Processor
On select models, a 128- or 512-kilobyte (K) secondary
s
(L2) cache integrated into the processor module (not
expandable)
A minimum of 64 megabytes (MB) of synchronous dynamic
s
random access memory (SDRAM) standard; expandable to
256 or 384 MB, depending on model, installed in dual inline
memory modules (DIMMs)
Compaq flexible ATX chassis, configurable either as a
s
desktop or minitower computer
Depending on model:
s
Three dedicated full-length PCI expansion slots; one
dedicated full-length ISA expansion slot; one full-
length "combination" slot for either a PCI or an ISA
expansion board; and one full-length Accelerated
Graphics Port (AGP) slot
Two dedicated full-length PCI expansion slots; two
dedicated full-length ISA expansion slots; one full-
length "combination" slot for either a PCI or an ISA
expansion board; and one full-length Accelerated
Graphics Port (AGP) slot
BIOS in a flash memory device supporting PCI auto-
s
configuration
Depending on model, 145- or 200-watt surge-tolerant
s
continuous power supply, switch-selectable for 115 and 230
VAC operation
One multimode, 25-pin enhanced parallel connector
s
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Two RS-232Ccompatible 9-pin serial connectors,
s
depending on model
Two Universal Serial Bus (USB) Plug and Play connectors
s
Five drive bays:
s
One external 3.5-inch diskette drive mounted with a
drive adapter in a 5.25-inch, one-third height bay
Two external 5.25-inch, half-height bays for optional
drives
Two internal 3.5-inch, one-third height bays for hard
drives
One Ultra ATA SMART hard drive, featuring drive fault
s
prediction
To check hard drive capacity, run Compaq Computer Setup;
see the Software Reference Guide for instructions
One 1.44-MB, 3.5-inch high-density diskette drive
s
One IDE CD-ROM drive or DVD-ROM drive, on select
s
models
One audio board and enhanced speaker, installed on select
s
models
One AGP graphics board, inserted in the AGP slot (graphics
s
memory is expandable on select models)
Compaq Enhanced Keyboard, featuring Microsoft Windows
s
specific keys
Compaq mouse
s
Security features, including passwords and cable lock
s
provision
Intelligent Manageability features designed to make
s
Compaq computers easier to inventory, configure, upgrade,
troubleshoot, protect, and maintain
Compaq Computer Setup Utilities and diagnostic features,
s
support software, and device drivers (available in select
languages)
Computer at a Glance
1-2
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Front Panel Components
Desktop Front Panel Components Minitower Front Panel Components
1 Power-On Light
2 Diskette Drive Activity Light
3 Diskette Eject Button
4 CD-ROM Eject Button
5 CD-ROM Drive Activity Light
6 CD-ROM Headphone Volume Control
7 CD-ROM Headphone Jack
8 Power Button
9 Hard Drive Activity Light
NOTE: CD-ROM and audio features are available on select models only.
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Rear Panel Connectors
Rear Panel Connectors
WARNING: To reduce the risk of electric shock or damage to the equipment:
! Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all times.
Disconnect power from the computer by unplugging the power cord from either the electrical outlet or
the computer.
1 Power Cord Connector
2 Voltage Select Switch
3 Two Universal Serial Bus (USB) Connectors
4 Keyboard Connector
5 Mouse Connector
6 Parallel Connector
7 Serial Connectors
8 Monitor Connector
9 Headphone Connector (on select models)
- Line-Out Audio Connector (on select models)
q Line-In Audio Connector (on select models)
w Microphone Connector (on select models)
NOTE: Audio features are available on select models only.
Computer at a Glance
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Drive Positions
Minitower Drive Positions
Desktop Drive Positions
12 Two 5.25-inch, half-height bays for optional drives (labeled as drive bays 1 and 2)
3 One standard 3.5-inch, 1.44-MB diskette drive mounted with a drive adapter in the
5.25-inch, one-third height bay (labeled as drive bay 3)
45 Two internal 3.5-inch, one-third height bays for hard drives (labeled as drive bays 4
and 5)
NOTE: Drive bay numbers are stamped on the chassis, behind the front bezel.
To verify the type and size of the 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. Used in combination with
Logo* other keys to perform other functions. (See the following table.)
3 Alt Use 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.
Computer at a Glance
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Windows Logo Key You may use the Windows Logo keys in combination with other
Combinations and keys to perform certain functions in Microsoft Windows, as
shown in the following table:
Functions
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.
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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.
To customize the display using Microsoft Windows, complete
the following steps:
1. Click StartSettingsControl Panel.
2. Open the Display icon.
3. Click the Settings tab.
4. In the Desktop Area box, drag the pointer to the desired
resolution.
5. In the Color Palette box, select the number of colors you
want to display.
6. Click OK for the changes to take effect.
To customize the display using Windows NT Workstation,
complete the following steps:
1. Click StartSettingsControl Panel.
2. Open the Display icon.
3. Click the Settings tab.
4. In the Desktop Area box, drag the pointer to the desired
resolution.
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.
Computer at a Glance
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Serial Number Each computer has a unique serial number, which is located on
the corner of the computer access panel and also on the rear
Location
panel of the computer. You may need to have this number
available if contacting Compaq customer service.
Turning Off Your To exit Windows and automatically turn off the computer, click
Start Shut Down.
Computer
In Windows NT Workstation, the power button always
functions as an on/off switch. In Windows, 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. To reconfigure the power button to work as an on/off
switch instead, run Computer Setup. (See the Software
Reference Guide for instructions.)
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2
chapter
U P G R A D I N G THE COMPUTER
This chapter explains how to remove the computer access panel
and convert the desktop computer to a minitower or the
minitower computer to a desktop. It also explains how to install
the following optional upgrade and replacement equipment:
Additional memory
s
Expansion boards
s
Additional graphics memory
s
Optional drives
s
Cable lock provision
s
Replacement battery
s
This chapter also includes information about when to
reconfigure the computer to ensure that it recognizes the newly
installed equipment.
Installation It is very important that you follow this sequence of steps to
ensure the proper installation of any optional equipment.
Sequence
1. If the computer is already on, turn it off and disconnect the
power cord from the wall outlet.
2. Disconnect the keyboard, monitor, and other external
equipment connected to the computer.
WARNING: To reduce the risk of personal injury from electrical
! shock and/or hot surfaces, be sure to disconnect the power cord
from the wall outlet, and allow the internal system components to
cool before touching.
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.
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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.
3. Open the computer by removing its access panel. Refer to
"Removing the Computer Access Panel" in this chapter for
instructions.
4. Install any optional equipment. For instructions, refer to the
applicable sections of this chapter and to the documentation
provided with the optional equipment.
5. Replace the computer access panel.
6. Reconnect the keyboard, monitor, and other external
equipment.
7. Turn on the monitor, computer, and any devices you want
to test.
8. Reconfigure the computer, if necessary. Refer to the
"When to Reconfigure the Computer" section of this
chapter for instructions.
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, or add a second diskette drive,
Computer you must reconfigure the computer to recognize these changes.
If you install a Plug and Play device, Windows 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. 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, use
the software utility provided with the newly installed hardware.
Upgrading the Computer
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Serviceability The computer includes features that make it more versatile and
easier to service.
Features
Removing the Computer Access Panel
Before removing the access panel, lay the computer down on its
large base for greater stability.
1. Turn off the computer and any external devices.
2. Disconnect the power cord from the power outlet, and
disconnect any external devices.
CAUTION: Before removing the computer access panel, ensure
that the computer is turned off and that the power cord is
disconnected from the electrical outlet.
3. Remove the two screws that secure the access panel to the
computer chassis.
4. Slide the access panel back about 1 inch (2.5 cm), then lift
it up and off the unit.
Removing the Computer Access Panel
To replace the access panel, reverse steps 14.
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Removing the Front Bezel
1. Turn off the computer and any external devices.
Disconnect the power cord from the power outlet and
disconnect any external devices.
2. Remove the computer access panel.
3. Push up on the two release tabs 1, then rotate the front
bezel away from the chassis to release it 2.
Removing the Front Bezel
When replacing the front bezel, ensure that the bottom
hinge points are properly placed in the chassis before
rotating the front bezel back into its original position.
Removing Bezel Blanks
1. Turn off the computer and any external devices.
Disconnect the power cord from the power outlet and
disconnect any external devices.
2. Remove the computer access panel.
3. Remove the front bezel.
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4. Gently pull the subpanel, with the bezel blanks secured in
it, away from the front bezel, then remove the desired bezel
blank.
CAUTION: Hold the subpanel straight when you pull it away from
the front bezel. Pulling the subpanel away at an angle could
damage the pins that align it within the front bezel.
Removing Bezel Blanks from the Subpanel (Desktop Shown)
When replacing the subpanel, ensure that the aligning
pins and any remaining bezel blanks are in their proper
orientation.
Changing from a Desktop to a Minitower Configuration
1. Turn off the computer and any external devices.
Disconnect the power cord from the power outlet and
disconnect any external devices.
2. Remove the computer access panel.
3. Remove the front bezel.
4. Disconnect all power and data cables from the drives in the
5.25-inch drive bays.
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5. To release the drives from the 5.25-inch drive bay, press
the short (yellow) drivelock 1 as shown.
Activating the Drivelocks (Shown from the Rear of the Chassis)
6. While pressing the drivelock, pull the drives out of the
drive bay.
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7. Before you install each drive into the chassis, turn it so that
it is in the same orientation as the internal 3.5-inch drive.
The bottom of the drive should be parallel to drivelock 1.
The diskette drive should always be placed in the bay
nearest the internal 3.5-inch drives in the minitower
configuration for proper clearance within the chassis.
Installing a Drive in the Minitower Configuration
8. Gently slide the drive into the bay. When the drive is
properly inserted, the drivelock will secure it.
CAUTION: The use of unnecessary force may result in damage to
the drives.
9. Reconnect all power and data cables to the drives in the
5.25-inch drive bays.
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10. Remove the subpanel 1 as described in the section
"Removing Bezel Blanks" and reposition it with the bezel
blanks in the proper orientation for the minitower
configuration 2.
CAUTION: Hold the subpanel straight when you pull it away from
the front bezel. Pulling the subpanel away at an angle could
damage the pins that align it within the front bezel.
Changing from a Desktop 1 to a Minitower Configuration 2
11. Replace the subpanel, front bezel, and the computer access
panel.
12. Reconnect the external equipment.
Upgrading the Computer
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Changing from a Minitower to a Desktop Configuration
1. Turn off the computer and any external devices.
Disconnect the power cord from the power outlet and
disconnect any external devices.
2. Remove the computer access panel.
3. Remove the front bezel.
4. Disconnect all power and data cables from the drives in the
5.25-inch drive bays.
5. To release the drives from the 5.25-inch drive bay, press
the long (green) drivelock 2 as shown.
Activating the Drivelocks (Shown from the Rear of the Chassis)
6. While pressing the drivelock, pull the drives out of the
drive bay.
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7. Before you install each drive into the chassis, turn it so that
it is perpendicular to the internal 3.5-inch drive. The
bottom of the drive should be parallel to drivelock 2.
The diskette drive should always be placed in the bay
nearest the top of the chassis in the desktop configuration
for proper drive clearance and access.
Installing a Drive in the Desktop Configuration
8. Gently slide the drive into the bay. When the drive is
properly inserted, the drivelock will secure it.
CAUTION: The use of unnecessary force may result in damage to
the drives.
9. Reconnect all power and data cables to the drives in the
5.25-inch drive bays.
Upgrading the Computer
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10. Remove the subpanel 2 as described in the section
"Removing Bezel Blanks" and reposition it with the bezel
blanks in the proper orientation for the desktop
configuration 1.
CAUTION: Hold the subpanel straight when you pull it away from
the front bezel. Pulling the subpanel away at an angle could
damage the pins that align it within the front bezel.
Changing from a Minitower 2 to a Desktop 1 Configuration
11. Replace the subpanel, front bezel, and the computer access
panel.
12. Reconnect the external equipment.
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Internal
Components
Internal Components
1 Dedicated full-length ISA expansion slot
2 Full-length combination slot for either a PCI or an ISA expansion board
3 Dedicated full-length PCI expansion slot
4 Full-length AGP slot
5 Processor
6 Power supply
7 Memory module sockets
8 Drivelocks
9 External drive bays (diskette drive is always in bay 3)
: Internal hard drive bays (bays 4 and 5)
; Extra drive mounting screws
The number and position of expansion slots may vary by model,
as shown.
Upgrading the Computer
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Installing Additional The computer comes with at least 64 megabytes of synchronous
dynamic random access memory (SDRAM) dual inline memory
Memory
modules (DIMMs) installed and supports up to 256 or 384 MB
of memory, depending on model. The memory sockets on the
system board can be populated with 8-, 16-, 32-, 64-, or 128-
MB DIMMs. Self-refresh DIMMs are required on models with
three DIMM sockets.
For proper system operation, the DIMMs must be industry
standard 168-pin, 66-MHz or faster unbuffered SDRAM
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. (Run Compaq Computer Setup to
determine your system bus speed; see the Software Reference
Guide for instructions.) 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.
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.
1. Turn off the computer and any external devices, then
disconnect the power cord from the power outlet.
2. Remove the computer access panel and locate the DIMM
sockets.
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3. Open both latches 1 of the DIMM socket, and insert the
memory module 2 into the socket.
Begin by installing a module into the socket nearest the
preinstalled module, and install the modules following the
numerical order of the sockets.
Match the notch on the module with the tab on the memory
socket. Push the module down into the socket, ensuring
that the module is fully inserted and properly seated 3.
Installing a DIMM Module
4. Repeat step 3 for any additional modules that you want to
install.
5. Replace the computer access panel.
6. Turn on the computer.
The computer should automatically recognize the added
memory.
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Installing an Your computer contains expansion slots, as shown in the
"Internal Components" section of this chapter.
Expansion Board
The graphics board resides in the AGP slot on the system
board.
Removing an Expansion Slot Cover
1. Turn off the computer and any external devices, then
disconnect the power cord from the power outlet.
2. Remove the computer access panel and locate the correct
vacant slot in the computer chassis.
3. Remove the screw securing the slot cover, then remove the
expansion slot cover from the slot as illustrated.
Removing the Screw and Expansion Slot Cover
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Installing an Expansion Board
1. Turn off the computer and any external devices, then
disconnect the power cord from the power outlet.
2. Remove the computer access panel.
3. Remove the expansion slot cover.
4. Slide the expansion board into the expansion slot and press
it firmly into place.
Installing an Expansion Board
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.
5. Replace the screw at the side of the expansion slot.
6. Replace the computer access panel.
7. Connect external cables to the installed board, if needed.
8. Reconfigure the computer, if necessary. Refer to the
"When to Reconfigure the Computer" section in this
chapter.
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Removing an 1. Turn off the computer and any external devices, then
disconnect the power cord from the power outlet.
Expansion Board
2. Remove the computer access panel.
3. Disconnect any cables attached to the expansion board.
4. Remove the screw at the side of the expansion slot.
5. Hold the board at each end and carefully rock it back and
forth until the connectors pull free from the slot. Be sure
not to scrape the board against other components.
Removing an Expansion Board
6. Store the board in antistatic packaging.
7. Install an expansion slot cover to close the open slot.
8. Replace the computer access panel.
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Upgrading Graphics On select models, graphics memory can be expanded by adding
an upgrade memory module of the same capacity. For models
Capabilities
that can be upgraded, the procedure is as follows:
1. Turn off the computer and any external devices, then
disconnect the power cord from the power outlet.
2. Remove the computer access panel.
3. Remove the screw that secures the AGP graphics board to
the computer chassis and remove the board from the AGP
slot.
Removing the Graphics Board from the AGP Slot
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4. Place the graphics board on a grounded, flat surface and
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 on the Graphics Board
5. Replace the graphics board into the same slot and secure it
with the screw.
6. Replace the computer access panel.
7. Change the resolution to take advantage of the additional
display modes now available with the upgraded memory.
Refer to Chapter 1, "Computer at a Glance," for more
information.
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Installing Additional The computer supports up to five drives which may be installed
in various configurations.
Drives
When installing additional drives, follow these guidelines:
For optimal performance, connect hard drives to the primary
s
controller. Connect expansion devices, such as CD-ROM,
IDE tape, and diskette drives to the secondary controller.
You may install either a third-height or a half-height drive
s
into a half-height bay.
You must install guide screws to ensure the drive will line
s
up correctly in the drive cage. Compaq has provided extra
guide screws, installed in the front of the computer chassis,
behind the front bezel. Some options use metric hardware.
The Compaq-supplied metric screws are black.
Using the Cable-Select Feature with Ultra ATA Devices
Optional drives are available from Compaq in kits that include a
special drive cable. The configuration of the drives employs a
cable-select feature that identifies the drives as device 0
(primary drive) or device 1 (secondary drive). The system board
determines which drive is device 0 or device 1, based on the
way the drives are connected to the special drive cable. The
device 0 drive is the drive connected to the short segment of the
drive cable (or that connector closest to the system board); the
device 1 drive is the drive connected to the long segment of the
drive cable.
Drive installation requires no jumper setting changes on the
existing or optional drives. All Compaq drives have the jumpers
preset for cable-select installation.
If installing a second device on the primary controller,
you must use an 80-conductor Ultra ATA cable for
optimal performance. This cable is available as a Compaq
option.
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Installing a CD-ROM, DVD-ROM, Tape, or PD-CD Drive
1. Turn off the computer and any external devices, disconnect
the power cord from the power outlet, and remove the
computer access panel.
2. Install two guide screws on each side of the drive 1.
Some options use metric hardware. Extra guide screws
are provided on the front of the chassis, under the front
bezel. The Compaq-supplied metric screws are black.
3. Install the drive in the desired drive bay by sliding it into
the front of the drive cage 2; the drivelock automatically
secures the drive in the bay.
Be sure the guide screws line up with the guide slots in
the drive cage.
Aligning the Guide Screws and Installing an Optional 5.25-Inch Drive
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4. Connect the drive power 1 and signal 2 cables and, if it is
a CD-ROM, DVD-ROM, or PD-CD drive, connect the
audio cable 3. The other end of the audio cable 3 should
be connected to the optional audio board if installed.
Connecting the Drive Cables
5. Remove the appropriate bezel blank from the subpanel
inside the front bezel. (Refer to the section "Removing
Bezel Blanks.")
6. Replace the computer access panel.
7. Reconfigure the computer, if necessary. Refer to the
"When to Reconfigure the Computer" section in this
chapter.
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Installing a 3.5-Inch Drive into a 5.25-Inch Drive Bay
1. Turn off the computer and any external drives, disconnect
the power cord from the power outlet, and remove the
computer access panel.
2. Remove the front bezel.
3. Install one guide screw on the right side of the drive.
4. Insert the drive into the adapter so that the guide screw
aligns in the slot, and then attach with two retaining screws.
5. Snap on the brace.
Attaching a 3.5-Inch Drive to the 5.25-Inch Adapter
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6. Install two guide screws on each side of the adapter 1.
7. Install the adapter in the desired drive bay 2 by sliding it
into the front of the drive cage; the drivelock automatically
secures the adapter when it snaps into place.
The primary 3.5-inch diskette drive should only be
installed into bay 3. Bay 3 is the bottom bay in the
minitower configuration and the topmost bay in the
desktop configuration.
Aligning the Guide Screws and Installing an Adapter with a 3.5-Inch Drive
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8. Connect the drive power 1 and signal 2 cables.
Connecting the Drive Cables
9. Remove the appropriate bezel blank from the subpanel
inside the front bezel. (Refer to the section "Removing
Bezel Blanks.")
10. Replace the computer access panel.
11. Reconfigure the computer, if necessary. Refer to the
"When to Reconfigure the Computer" section in this
chapter.
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Removing a Drive 1. Turn off the computer, disconnect the power cord from
the power outlet, and remove the computer access
from the Drive Bay
panel.
2. Remove the front bezel.
3. Disconnect the drive power and signal cables and, if it is a
CD-ROM, DVD-ROM, or PD-CD drive, disconnect the
audio connector.
4. Press drivelock mechanisms 1 or 2 to unlock the drive in
the drive bay.
Drivelock 1 Secures the 5.25-Inch Drives in the Desktop and 2 Secures All Drives in the
Minitower (Shown from the Rear of the Chassis)
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5. While pressing the drivelock, pull the drive out of the drive
bay.
Removing a Drive from the 5.25-Inch Drive Bay
6. Remove the drive from the drive bay and store in antistatic
packaging.
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.
WARNING: To avoid injury, use care in handling the separated
! pieces of the cable lock bracket; metal edges may be sharp. Be
sure to install the bracket so that sharp edges do not extend from
the edges of the computer chassis.
1. Before installing the security bracket, remove the
thumbscrew nearest the rear connector panel. Note the
location of the notch near the thumbscrew.
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2. Separate the pieces of the security bracket by bending the
metal where the three pieces join.
3. Slide the tab on the narrow piece of the bracket into the
notch on the back of the computer and rotate this piece
toward the screw hole, then slide the U-shaped piece of the
bracket between the narrow piece and the computer.
4. Position both pieces of the bracket over the screw hole and
secure the bracket to the computer with the screw provided.
5. Cover the screw with the flat portion of the security
bracket.
6. Install a padlock (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 interior of the computer and secure the
computer to a fixed object.
Attaching a Security Bracket with Padlock
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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 Renata CR2032 or equivalent 3-volt
lithium coin cell battery.
1. Turn off the computer and any external devices, disconnect
the power cord from the power outlet, and remove the
computer access panel.
It may be necessary to remove an expansion board to gain
access to the battery.
Locating the Battery on the System Board
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2. Lift the battery out of its holder.
Removing the Coin Cell Battery
3. Slide the replacement battery into position.
The battery holder automatically secures the battery in the
proper position.
4. Replace any expansion boards you have removed.
5. Replace the computer access panel.
6. Plug in the computer and turn on power.
7. 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
preaddressed to a reclamation facility where the
metals are recycled. Call the telephone number listed
for your location in the Contacting Customer Support
guide for more information.
In Europe, do not dispose of batteries with general
household waste. Dispose of or recycle them by using
the public collection system or returning them to
Compaq, your authorized Compaq partners, or their
agents.
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A
appendix
SPECIFICATIONS
Desktop Dimensions
Height 6.60 in 16.76 cm
Width 17.65 in 44.83 cm
Depth 17.11 in 43.46 cm
Minitower Dimensions
Height 17.65 in 44.83 cm
Width 6.60 in 16.76 cm
Depth 17.11 in 43.46 cm
Approximate Weight 26 lb 12 kg
Weight Supported 100.0 lbs 45.5 kgs
Maximum distributed load, desktop configuration only
Environmental Requirements
Temperature Operating 50 to 95F 10 to 35C
Shipping -4 to 140F -20 to 60C
Humidity (noncondensing) Operating 20% to 80%
Nonoperating 10% to 90%
Maximum Altitude (unpressurized) Operating 10,000 ft 3048 m
Nonoperating 30,000 ft 9144 m
Power Supply
Operating Voltage Range 90-132 VAC 180-264 VAC
Rated Voltage Range 100-127 VAC 200-240 VAC
Rated Line Frequency 50-60 Hz 50-60 Hz
ower Output 145 W or 200 W
Rated Input Current (maximum): 145 W 5.5 A 3A
200 W 4A 2A
Heat Dissipation (maximum): 145 W 1050 Btu/hr 265 kg-cal/hr
200 W 750 Btu/hr 189 kg-cal/hr
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B
appendix
S Y S T E M BOARD JUMPERS AND
SWITCHES
This section provides information for setting DIP switches after
upgrading the processor and for setting jumpers to enable,
disable, or clear passwords or clear the configuration memory
(CMOS).
To set the system board jumpers and switches, you must remove
the computer access panel. Refer to the "Removing the Computer
Access Panel" section in Chapter 2.
WARNING: To reduce the risk of personal injury from electrical
! shock and/or hot surfaces, be sure to disconnect the power cord
from the wall outlet, and allow the internal system components to
cool before touching.
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.
Setting Processor After you upgrade the processor, the system will automatically
Speed detect the bus speed of your processor and configure the system
to run at maximum bus speed. However, the core speed of the
processor must be configured by changing the SW1 DIP switch
settings on the system board as shown in the following table.
Positions 1 and 6 of SW1 do not affect the speed of the
processor and should not be changed.
CAUTION: Do not configure the processor to run at a speed
higher than its rated frequency.
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Note that some models will only support a processor with a
66-MHz bus speed.
Setting Processor Speed (Switch SW1)
Processor Processor S1 S2 S3 S4 S5 S6
speed @ speed @
66MHz bus 100MHz bus
speed speed
233 350 X OFF OFF ON ON X
266 400 X ON ON OFF ON X
300 450 X ON OFF OFF ON X
333 500 X OFF ON OFF ON X
366 X OFF OFF OFF ON X
400 X ON ON ON OFF X
Location of SW1 DIP Switches on the System Board
System Board Jumpers and Switches
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Disabling or To disable the power-on or setup password features, or to clear
the power-on or setup passwords if you forget them and cannot
Clearing the Power-
access the computer system or Computer Setup, complete the
On and Setup following steps:
Passwords
1. Set SW1, position 1, to the ON position.
2. Turn on the computer and allow the operating system to
start. This clears the current passwords and disables the
password features.
3. To re-enable the password features, turn off the computer
and set SW1, position 1, to the OFF position.
4. Turn on the computer and establish new passwords. Refer
to the Software Reference Guide for instructions.
Clearing The computer's configuration memory (CMOS) may
occasionally be corrupted. When this occurs, it is usually due to
Configuration
software or hardware that is not functioning accurately or due to
Memory the addition or removal of expansion boards. If the computer's
configuration memory becomes corrupted, it is necessary to
clear the configuration memory.
1. Turn off the computer and any external devices, and
disconnect the power cord from the power outlet.
2. Disconnect the keyboard, monitor, and any other external
equipment connected to the computer.
WARNING: To reduce the risk of personal injury from electrical
! shock and/or hot surfaces, be sure to disconnect the power cord
from the wall outlet, and allow the internal system components to
cool before touching.
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.
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3. Remove the computer access panel. Refer to the
"Removing the Computer Access Panel" section in
Chapter 2.
4. Locate the jumper labeled E50.
Location of the E50 Jumper and Pins 1-3 on the System Board
5. Remove the jumper from pins 1 and 2, place it on pins 2
and 3 for approximately 30 seconds, then return it to pins 1
and 2.
6. Replace the computer access panel.
7. Reconnect the external equipment.
8. Plug in the computer and turn on power.
When the CMOS jumper is removed, your passwords will become
invalid because the passwords are stored in the configuration
memory. You will need to reset your passwords and any special
system setups. Refer to the Software Reference Guide.
System Board Jumpers and Switches
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INDEX
CMOS
A clearing, B-3
computer access panel
audio board, 1-2
removing, 2-3
audio features
computer care
CD-ROM headphone jack, 1-3
turning off properly, 1-9
CD-ROM headphone volume
Computer Setup Utilities, 1-2
control, 1-3
configuration memory (CMOS)
headphone connector, 1-4
clearing, B-3
line-in audio connector, 1-4
controls. See front panel components
line-out audio connector, 1-4
microphone connector, 1-4
D
B desktop configuration
changing to minitower, 2-5
battery
device drivers, 1-2
proper disposal, 2-31
diagnostic features, 1-2, 1-5
replacing, 2-29
DIMMs (dual inline memory modules),
safety, 2-30
1-1
bezel blanks
installing, 2-13
removing, 2-4
diskette drive, 1-2, 1-5
BIOS, 1-1
diskette drive activity light, 1-3
bus speed, 2-13
diskette eject button, 1-3
drive bays, 1-2, 1-5, 2-12
C drive positions, 1-5
drivelocks, 2-12
cable lock provision, 2-27
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