Compaq 205487-002 - Deskpro EN - 800 MHz Operating and maintenance manual

Hardware Reference Guide
CompaqDeskproENSeriesofPersonalComputers
SmallFormFactorModels
178145-001

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Writer: Martha Rockecharlie Part Number: 178145-xx1 File Name: a-IntroSFF.doc
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Hardware Reference Guide
Compaq Deskpro EN Series
of Personal Computers
Small Form Factor Models

Compaq Confidential - Need to Know Required
Writer: Martha Rockecharlie Part Number: 178145-002 File Name: b-NoticeSFF.doc
Last Saved On: 07/18/00 5:08 PM Last Saved y: Martha Rockecharlie
Notice
Compaq Computer Corporation shall not be liable for technical or editorial
errors or omissions contained herein. The information in this guide is subject
to change without notice.
© 2000 Compaq Computer Corporation. Except for use in connection with the accompanying
Compaq product, no part of this guide may be photocopied or reproduced in any form without
prior written consent from Compaq Computer Corporation.
COMPAQ, the Compaq logo, and Deskpro Registered in U.S. Patent and Trademark Office.
Microsoft, 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.
All other product names mentioned herein may be trademarks or registered trademarks of
their respective companies. Printed in U.S.A.
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.
Hardware Reference Guide
Compaq Deskpro EN Series of Personal Computers
Small Form Factor Models
First Edition (October 2000)
Part Number 178145-002
Compaq Computer Corporation

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CONTENTS
chapter 1
Installation Guidelines
Installation Sequence............................................................................................................... 1-1
When to Reconfigure the Computer ........................................................................................ 1-3
chapter 2
Hardware Upgrades
Serviceability Features............................................................................................................. 2-1
Drawer Installation Method ............................................................................................... 2-1
Removing the Computer Cover............................................................................................... 2-2
Removing the Expansion Card Cage....................................................................................... 2-4
Installing an Expansion Card................................................................................................... 2-5
Installing Additional Memory ................................................................................................. 2-7
DIMMs............................................................................................................................... 2-7
Memory Module Installation ............................................................................................. 2-7
Upgrading the Hard Drive ..................................................................................................... 2-10
Removing and Installing Drives ............................................................................................ 2-12
Removing a CD-ROM Drive ........................................................................................... 2-12
Installing an Optional DVD-ROM Drive......................................................................... 2-14
Smart Cover Lock.................................................................................................................. 2-16
Using the Smart Cover FailSafe Key............................................................................... 2-16
appendix a
Specifications .................................................................................................................................... A-1
appendix b
Hard Drive Installation Guidelines
Using the Cable-Select Feature with Ultra ATA Devices ...................................................... B-1
Installing SCSI Devices.......................................................................................................... B-2
Guidelines for Installing Optional SCSI Devices ............................................................. B-2
Cabling for Optional SCSI Devices .................................................................................. B-4
Using SCSISelect with SCSI Devices............................................................................... B-5
appendix c
Battery Replacement......................................................................................................................... C-1
appendix d
Security Lock Provisions
Installing a Cable Lock........................................................................................................... D-1

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appendix e
Electrostatic Discharge
Preventing Electrostatic Damage.............................................................................................E-1
Grounding Methods.................................................................................................................E-2
appendix f
Routine Computer Care and Shipping Preparation
Routine Computer Care ...........................................................................................................F-1
CD-ROM Drive Precautions....................................................................................................F-2
Operation ...........................................................................................................................F-2
Cleaning .............................................................................................................................F-2
Safety .................................................................................................................................F-2
Shipping Preparation ...............................................................................................................F-3
Index .....................................................................................................................................................I-1

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chapter 1
INSTALLATION GUIDELINES
This guide explains how to remove the computer cover or access panel
and install the following optional equipment upgrades:
■ Additional system memory
■ Expansion card
■ Optional drive
■ Security lock
■ Replacement battery
This chapter includes information about the general installation
sequence for Deskpro personal computers, and about when to
reconfigure the computer to ensure that it recognizes the newly installed
equipment.
Installation Sequence
It is very important that you follow this sequence of steps to ensure the
proper installation of any optional equipment.
1. If your computer includes the Smart Cover Lock feature and you
have set the lock, use Computer Setup to unlock the lock and
disable the Smart Cover Sensor.
For more information about Computer Setup, refer to the Computer
Setup guide.

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2. If the computer is already on, turn it off and disconnect the power
cord from the wall outlet.
!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.
!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: 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 Appendix E,
“Electrostatic Discharge,” for more information.
3. Open the computer by removing its outside cover. Refer to the
procedures for removing the computer cover or access panel.
4. Install any optional equipment. Refer to the applicable sections of
this guide or to the documentation provided with the optional
equipment for instructions.
5. Replace the computer cover.
6. Turn on the monitor, computer, and any devices you want to test.
7. Reconfigure the computer, if necessary. Refer to the Computer
Setup guide for instructions about using Computer Setup.
If you normally lock the Smart Cover Lock, use Computer Setup to
relock the lock and enable the cover removal sensor.

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When to Reconfigure the Computer
System configuration is the process of specifying the devices and
programs that make up a computer system. When you add or remove
optional equipment, the computer must be reconfigured to recognize
these changes.
Windows 95 and later operating systems automatically recognize all
Plug and Play devices installed. However, if the device is not a Plug and
Play device or is not automatically detected after installation, follow
these instructions:
■ In Windows 95 and later operating systems, select the Add New
Hardware icon in the Control Panel and follow the instructions on
the screen.
■ To reconfigure the computer in Windows NT version 4.0, use the
software utility provided with the newly installed hardware.

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chapter 2
HARDWARE UPGRADES
Serviceability Features
Your computer allows for easier upgrades and service 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.
Drawer Installation Method
When installing the computer chassis in a drawer, the following
conditions must be met to ensure proper air flow:
■ At least 3 inches (7.6 cm) of clear space between the 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 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 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).

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■ If vent holes are located in the bottom of the mounting drawer,
allow at least 1 inch (2.54 cm) of clear space below the drawer to
ensure proper air flow.
■ At least 1 inch (2.54 cm) of clear space above the top of the
chassis.
Removing the Computer Cover
To install optional equipment, you must remove the computer cover to
gain access to internal components. The quick release cover latches
located on the sides of the computer allow easy 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.
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.