HP Deskpro EN User manual

Compaq Deskpro EN Series of Personal Computers 1-1
chapter 1
PRODUCT DESCRIPTION
This chapter describes the model offerings and features of the Compaq Deskpro EN Series
of Personal Computers.
✎Throughout this guide, Revised Configuration refers to all models produced
after May 17, 1999.
Compaq Deskpro EN Series of Personal Computers

1-2 Product Description
1.1 Model Overview
The Compaq Deskpro EN Series of Personal Computers is available in configurations
described in the following sections.
Original vs Revised Configuration
Configuration System Board
Spares
Chipset NIC Graphics
Original 162857-001 Intel 440 BX Intel 10/100 ATI Rage Pro Turbo
AGP 1X
ATI Rage Pro Turbo
AGP 2X
Revised 117740-001 Intel 810 Intel PRO/100+ Embedded Intel 3D
Direct AGP
158750-001 Intel 820 Intel PRO/100+ Matrox G400 AGP
ELSA Synergy II AGP
162857-001 Intel 440 BX Intel PRO/100+ ATI Rage Pro Turbo
AGP 1X
ATI Rage Pro Turbo
AGP 2X
1.2 System Design
This section presents a design overview and functional descriptions of the key components
of the Compaq Deskpro EN Series of Personal Computers. All replaceable components
are identified in Chapter 2, and removal and replacement instructions are presented in
Chapters 4 and 5.

Compaq Deskpro EN Series of Personal Computers 1-3
1.2.1 Desktop Design Overview
The desktop models of the Compaq Deskpro EN Series of Personal Computers use a
highly serviceable chassis to house the slide-out system board, expansion card cage,
power supply, and mass storage devices. The expansion card cage houses the expansion
card.
All internal components are accessible when the cover with its integrated front bezel is
removed. The cover assembly is attached to the chassis with Quick Release Cover
Latches; no tools are required to remove the cover assembly.
The system board is easily removed from the chassis after the cover is removed and the
expansion card cage is raised by lifting a pair of top-mounted green levers. Once the
system unit cover has been removed and the expansion card cage raised, there is no need
to remove any other component to access the system board. Details of the disassembly
procedure are found in Chapter 4, “Removal and Replacement Procedures.”
The tilt drive cage is located on the right side of the chassis, directly in front of the power
supply. Tilting the cage allows full service access to the rear of the drives without the need
for any tools. The drive cage accommodates one side-mounted internal hard drive and
provides three bays for external access drives.
The drive cage allows drive installation without the use of rails. Two screws on each side
of the drive are used as guides, and drive release latches are used to secure the drives into
the bays. Extra guide screws (standard and metric thread) are provided on the front of the
chassis, to the left of the drive cage for use when installing additional drives.
The expansion card cage with the riser board mounts at a right angle to the system board.
The riser board is secured to the expansion board cage with three screws. Expansion
boards are installed at a right angle into the riser board. A single screw secures each
expansion board to the expansion board cage.
The power supply is mounted in the right rear corner of the chassis. Embedded clips
located on the bottom of the power supply engage cutouts in the floor of the chassis. The
power supply is held in place by three screws that are installed through the rear panel of
the chassis.

1-4 Product Description
1.2.2 Minitower Design Overview
The minitower models of the Compaq Deskpro EN Series of Personal Computers use a
highly serviceable chassis to house the slide-out system board, expansion board cage,
power supply, and mass storage devices. The expansion board cage houses the expansion
boards.
All internal components are accessible when the access panel and the front bezel are
removed. The access panel is attached to the chassis with three easily removed thumb
screws and the front bezel is attached with tabs.
The system board is easily removed from the chassis after the access panel is removed, the
computer is turned on its side, and the expansion board cage is raised by lifting a pair of
top-mounted green levers. Once the access panel has been removed and the expansion
board cage raised, there is no need to remove any other component to access the system
board. Details of the disassembly procedure are found in Chapter 5, “Removal and
Replacement Procedures.”
The drive cage is located at the top of the chassis, accommodates one internal hard drive,
and provides four bays for external access drives.
The drive cage allows drive installation without the use of rails. Two screws on each side
of the drive are used as guides, and drive release latches are used to secure the drives into
the bays. Extra guide screws (standard and metric thread) are provided on the front of the
chassis for use when installing additional drives.
The expansion board cage with the riser board mounts at a right angle to the system board.
The riser board is secured to the expansion board cage with three screws. Expansion
boards are installed at a right angle into the riser board. A single screw secures each
expansion board to the expansion board cage.
The power supply is mounted in the top rear of the chassis. It is supported by built-in
latches and held in place by three screws that are installed through the rear panel of the
chassis.

Compaq Deskpro EN Series of Personal Computers 1-5
1.3 Preinstalled Software
The computer is shipped with Microsoft Windows 95, Windows 98, or Windows NT 4.0
installed as the operating system, depending on the model.
The following Compaq software is preloaded on the computer:
ROM-based Computer Setup*
Compaq Diagnostics for Windows*
Compaq Support Software and device drivers*
Online Compaq Safety & Comfort Guide (English only)
Power Management with Energy Saver features*
Security Management*
Remote Management Tools*
✎* Part of Intelligent Manageability
1.3.1 Ordering Additional Software
If you plan to run any of the following operating systems on the computer, you must
install the corresponding Compaq device drivers and utilities before attempting to use the
computer:
IBM OS/2
NetWare
A version of Microsoft Windows or Windows NT that is different from the version
included with the computer
There are two methods to order copies of suitable device drivers and utilities:
Order the Support Software CD for Compaq Desktop, Portables, and Workstation
Products. This compact disc contains the latest device drivers, utilities, and
flashable ROM images needed to run MS-DOS, Windows 3.1, Windows 95,
Windows NT Workstation 3.51, IBM OS/2, and NetWare on the Compaq
commercial desktop product.
Download the software from the Compaq World Wide Web site
(www.compaq.com).
The Support Software CD can be purchased in either of two ways:
A single CD-ROM that gives one-time access to the latest support software (North
America only).
A yearly subscription that delivers up to 12 monthly CD-ROMs and provides
continuous access to the latest developments.
✎When calling Compaq to place an order, be sure to have the serial number of the
computer available. The location of the serial number is shown in Section 1.8.
This number is necessary for all purchases.

1-6 Product Description
1.4 Desktop Computer Features
The Compaq Deskpro EN Series of Personal Computers ships with a mouse and keyboard.
A Compaq color monitor or other compatible monitor, which is also required to operate
the computer, does not ship with the computer.
1.4.1 Front Panel Controls and LEDs – All Configurations

Diskette Drive Activity Light—illuminates when the diskette drive is reading or writing.

CD-ROM Headphone Jack

CD-ROM Headphone Volume Control

Diskette Eject Button

CD-ROM Tray

CD-ROM Emergency Eject Socket

CD-ROM Drive Activity Light—illuminates when the CD-ROM drive is reading information from the
compact disc.

CD-ROM Eject Button

Dual-State Power Button

Power-On Light—illuminates when the computer is turned on and blinks (optional) in Energy Saver
Mode.
Drive Activity Light— flashes when an ATAPI device, such as the hard drive, is active.

Compaq Deskpro EN Series of Personal Computers 1-7
1.4.2 Rear Panel Connectors – Original Configuration

Power Cord Connection

Smart Cover Lock

Microphone Connector

Ethernet RJ-45 Connector (some models available without a NIC)

Line-In Audio Connector

Wide UltraSCSI Connector (select models)

Mouse Connector

Monitor Connector

Voltage Select Switch (115V or 230V to match geographical requirements)

Universal Serial Bus (USB) Connectors
Headphone Connector
Line-Out Connector

Keyboard Connector
Parallel Port Connector
Serial Connectors

1-8 Product Description
1.4.3 Rear Panel Connectors – Revised Configuration

Voltage Select Switch (115V or 230V to match geographical requirements)

Smart Cover Lock

Microphone Connector

Ethernet RJ-45 Connector (some models available without a NIC)

Line-In Audio Connector

Wide UltraSCSI Connector (select models)

Mouse Connector

Monitor Connector (For units with system board 117740-001, the Monitor Connectors are located to
the right of the Serial Connectors.)

Product ID Label

Power Cord Connection
Universal Serial Bus (USB) Connectors
Headphone Connector

Line-Out Connector
Keyboard Connector
Parallel Port Connector
Serial Connectors

Compaq Deskpro EN Series of Personal Computers 1-9
1.4.4 Drive Position – All Configurations

Standard 3.5-inch 1.44-MB diskette drive

Optional 5.25-inch CD-ROM drive (half-height) (standard on some models)

Optional 5.25-inch drive (half-height)

Standard 3.5-inch internal hard drive
To verify the type, size, and capacity of the mass storage devices installed in the computer,
run the View System Information (INSPECT) utility available at computer startup.

1-10 Product Description
1.5 Minitower Computer Features
The Compaq Deskpro EN Series of Personal Computers ships with a mouse and keyboard.
A Compaq color monitor or other compatible monitor, which is also required to operate
the computer, does not ship with the computer.
1.5.1 Front Panel Controls and LEDs – All Configurations

Diskette Eject Button

Diskette Drive Activity Light—illuminates when the diskette drive is reading or writing.

CD-ROM Drive Tray

Stereo Headphone Jack

Headphone Volume Control

CD-ROM Emergency Eject Socket

CD-ROM Drive Activity Light—illuminates when the CD-ROM drive is reading information.

CD-ROM Eject Button

Dual-State Power Button

Power-On Light—illuminates when the computer is turned on and blinks (optional) in Energy Saver
Mode.
Drive Activity Light— flashes when an ATAPI device, such as the hard drive, is active.

Compaq Deskpro EN Series of Personal Computers 1-11
1.5.2 Rear Panel Connectors – Original Configuration

Voltage Select Switch (115V or 230V to match geographical requirements)

Universal Serial Bus (USB) Connectors

Headphone Connector

Line-Out Audio Connector

Keyboard Connector

Parallel Port Connector

Serial Connectors

Smart Cover Lock

Power Cord Connector

Microphone Connector
Ethernet RJ-45 Connector (some models available without a NIC)
Wide UltraSCSI Connector (select models)

Line-In Audio Connector
Mouse Connector
Monitor Connector

1-12 Product Description
1.5.3 Drive Position – Original Configuration

Standard 3.5-inch 1.44-MB diskette drive

5.25-inch CD-ROM drive (half-height) (standard on some models)

Optional 5.25-inch drive (half-height)

Optional 5.25-inch drive (half-height)

Standard 3.5-inch internal hard drive
To verify the type, size, and capacity of the mass storage devices installed in the computer,
run the View System Information (INSPECT) utility available at computer startup.

Compaq Deskpro EN Series of Personal Computers 1-13
1.6 Serial Number Location
Provide the computer serial number to Compaq when requesting information or ordering
spare parts. The serial number is displayed on the top of the system unit cover at the right
front corner and also on the rear of the computer.
Serial Number Locations