Compaq Deskpro EN Series Hardware Reference Guide
Hardware Reference Guide
Compaq Deskpro EN Series of Personal Computers
Slim Desktop Models
Hardware Reference Guide
Compaq Deskpro EN Series
of Personal Computers
Slim Desktop Models
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
Slim Desktop Models
First Edition (October 2000)
Part Number 178171-002
Compaq Computer Corporation
chapter 1
Installation Guidelines
Installation Sequence ............................................................................................................... 1-1
When to Reconfigure the Computer......................................................................................... 1-3
chapter 2
Hardware Upgrades
Serviceability Features............................................................................................................. 2-1
Removing the Access Panel ............................................................................................... 2-1
Rotating the Drive Cage..................................................................................................... 2-3
Internal Components (Intel 815e Chipset) ............................................................................... 2-4
Installing Additional Memory.................................................................................................. 2-5
DIMMs............................................................................................................................... 2-5
Memory Module Installation.............................................................................................. 2-5
Installing an Expansion Card ................................................................................................... 2-7
Removing an Expansion Slot Cover................................................................................... 2-7
Removing or Installing a PCI Card .................................................................................... 2-8
Installing Additional Drives................................................................................................... 2-10
Removing a Blank Drive Bezel........................................................................................ 2-10
Installing a Diskette, CD-ROM, DVD-ROM, or Tape Drive........................................... 2-11
Installing a Hard Drive..................................................................................................... 2-13
Removing a CD-ROM Drive from the Drive Cage ............................................................... 2-16
Removing a Diskette Drive from the Drive Cage .................................................................. 2-17
Removing a Hard Drive from the Drive Cage ....................................................................... 2-18
Smart Cover Lock.................................................................................................................. 2-20
Using the Smart Cover FailSafe Key ............................................................................... 2-20
CONTENTS
Hardware Reference Guide iii
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
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
iv Contents
Index .....................................................................................................................................................I-1
Installation Sequence
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.
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.
Hardware Reference Guide 1-1
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.
1-2 Installation Guidelines
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.
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.
Hardware Reference Guide 1-3
Serviceability Features
Removing the Access Panel
chapter
2
HARDWARE UPGRADES
Your computer includes features that make it easier to upgrade and
service.
The quick release cover latches, located near the rear on each side of
the unit, allow easy removal of the access panel without the use of tools
or thumbscrews.
WARNING: Before removing the computer cover, ensure that the
!
computer is turned off and that the power cord is disconnected from
the electrical outlet.
1. If you have locked the Smart Cover Lock, use Computer Setup to
2. Shut down the operating system properly, then turn off the
If you have not already done so, you will need to loosen the
silver shipping thumbscrew from the center of the rear panel
before removing the cover.
unlock the lock and disable the Smart Cover Sensor.
computer and any external devices.
Hardware Reference Guide 2-1
3. Disconnect the power cord from the power outlet.
4. Loosen the retaining screw located on the back of the unit
5. Slide the cover latches on the sides near the back of the
computer
6. Lift up the back of the access panel and pull it toward the back of
the unit about 1 inch (2.5 cm) so the tabs on the front of the access
panel clear the case
.
. Lift the access panel up and off the unit.
.
2-2 Hardware Upgrades
Removing the Access Panel
The configuration label located inside the computer cover
provides additional information.
Another label located inside the computer chassis provides
information about diagnosing computer conditions using the
power and hard drive LEDs.
Rotating the Drive Cage
The rotating drive cage allows access to all drive bays for easy
installation of additional drives, requiring no drive rails or brackets.
With the drive cage rotated out from the chassis, you can easily connect
the drive power and signal cables.
1. If you have locked the Smart Cover Lock, use Computer Setup to
2. Shut down the operating system properly, then turn off the
3. Disconnect the power cord from the power outlet.
4. Remove the access panel.
5. Grasp the back of the drive cage and rotate it to its upright
When installing optional drives, you must install guide screws
to ensure the drive will line up correctly in the drive cage.
Compaq has provided extra guide screws, installed in the
bottom of the computer chassis, next to the power supply.
WARNING: Before removing the access panel, ensure that the
!
computer is turned off and that the power cord is disconnected from
the electrical outlet.
unlock the lock and disable the Smart Cover Sensor.
computer and any external devices.
position
. The cage remains connected to the chassis.
Rotating the Drive Cage to an Upright Position
Hardware Reference Guide 2-3
Internal Components (Intel 815e Chipset)
Internal Components in Intel 815e–Based Desktop Models
Cable lock (optional)
AGP graphics slot
Smart Cover Lock
Processor
Power supply
Dual-inline memory module (DIMM) sockets
Primary hard drive
Diskette drive
CD-ROM drive
PCI expansion slots
Speaker
2-4 Hardware Upgrades
Installing Additional Memory
The computer comes with synchronous dynamic random access
memory (SDRAM) dual inline memory modules (DIMMs).
DIMMs
The memory sockets on the Intel 815e chipset–based system board can
be populated with industry-standard DIMMs. These memory module
slots are populated with at least one preinstalled memory module. To
achieve the maximum memory support, you may be required to replace
the preinstalled DIMM with a higher capacity DIMM.
For proper system operation, the DIMMs must be industry-standard
168-pin, unbuffered PC100– or PC133– compliant SDRAM DIMMs,
depending on the model. 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.
The Intel 815e chipset supports both PC100 and PC133 SDRAM
DIMMs. PC133 DIMMs should be used for optimal performance. If
both PC100 and PC133 SDRAM DIMMs are installed in a computer,
the system memory will run at the lower 100Mhz speed. Some
configurations of PC133 SDRAMs may run at 100Mhz, instead of
133Mhz.
Memory Module Installation
CAUTION: Your memory module sockets have gold metal contacts.
When upgrading your memory, it is important to use memory
modules with gold metal contacts to prevent corrosion and/or
oxidation resulting from having incompatible metals in contact with
each other.
CAUTION: Static electricity can damage the electronic components
of the computer or optional cards. 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.
CAUTION: When handling a memory module, be careful not to touch
any of the contacts. Doing so may damage the module.
Hardware Reference Guide 2-5
1. If you have locked the Smart Cover Lock, use Computer Setup to
unlock the lock and disable the Smart Cover Sensor.
2. Shut down the operating system properly, then turn off the
computer and any external devices, then disconnect the power cord
from the power outlet.
3. Remove the access panel and locate the memory module sockets.
WARNING: To reduce risk of personal injury from hot surfaces,
!
allow the internal system components to cool before touching.
4. Open both latches of the memory module socket , and insert the
memory module 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.
A memory module can be installed in only one way. 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
.
.
2-6 Hardware Upgrades
Installing a DIMM
Installing an Expansion Card
Your computer contains expansion slots, as shown in the “Internal
Components” section of this chapter. Each slot can accommodate an
expansion card up to 6.88 inches (17.48 cm) in length.
Removing an Expansion Slot Cover
1. If you have locked the Smart Cover Lock, use Computer Setup to
unlock the lock and disable the Smart Cover Sensor.
2. Shut down the operating system properly, turn off the computer
and any external devices, then disconnect the power cord from the
power outlet.
3. Remove the access panel.
4. Locate the correct vacant expansion card slot on the back of the
computer.
5. Remove the screw at the top of the expansion slot cover, then
remove the expansion slot cover from the slot as illustrated.
Removing a Screw and Expansion Slot Cover
Hardware Reference Guide 2-7
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