HP Deskpro 300 Operating and maintenance manual

Compaq Deskpro Workstation 300
Hardware Reference Guide
212399-001
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Deskpro Workstation 300
Hardware Reference Guide

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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 Window 2000 Professional are trademarks of
Microsoft Corporation. Intel and Pentium are trademarks of Intel Corporation.
All other product names mentioned herein may be trademarks or registered trademarks of
their respective companies.
Compaq shall not be liable for technical or editorial errors or omissions contained herein. The
information in this guide is subject to change without notice. The warranties for Compaq
products are set forth in the express limited warranty statements accompanying such products.
Nothing herein should be construed as constituting an additional warranty.
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.
Compaq Deskpro Workstation 300
Hardware Reference Guide
First Edition (October 2000)
Part Number 212399-001
Compaq Computer Corporation

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CONTENTS
chapter 1
Product Features
Standard Configuration Features............................................................................................. 1-1
Front Panel Components......................................................................................................... 1-2
Rear Panel Components .......................................................................................................... 1-3
I/O Panel Components ............................................................................................................ 1-4
System Board Components..................................................................................................... 1-5
Changing from a Minitower to a Desktop Configuration ....................................................... 1-6
Changing from a Desktop to a Minitower Configuration ....................................................... 1-9
Keyboard............................................................................................................................... 1-12
Easy Access Software...................................................................................................... 1-13
Reprogramming the Easy Access Buttons................................................................. 1-13
Locking and Unlocking the Easy Access Buttons ..................................................... 1-13
Easy Access Paper Icon Insert................................................................................... 1-13
Windows Logo Key......................................................................................................... 1-14
Special Mouse Functions....................................................................................................... 1-14
Serial Number Location........................................................................................................ 1-14
chapter 2
Hardware Upgrades
Installation Sequence............................................................................................................... 2-2
Removing the Workstation Access Panel................................................................................ 2-3
Removing the Front Bezel....................................................................................................... 2-4
Installing Additional Memory................................................................................................. 2-5
Installing and Removing RIMMs...................................................................................... 2-5
RIMM Socket Locations.............................................................................................. 2-5
Guidelines for RIMM Installation..................................................................................... 2-6
Installing RIMMs .............................................................................................................. 2-7
Removing RIMMs............................................................................................................. 2-8
Installing Additional Drives.................................................................................................... 2-9
Drive Bay Components ..................................................................................................... 2-9
Minitower Drive Bay Positions.................................................................................... 2-9
Desktop Drive Bay Positions..................................................................................... 2-10
Preparing for Drive Installation....................................................................................... 2-11
Removing the Bezel Blank ........................................................................................ 2-11
Installing a Drive............................................................................................................. 2-12
Installing a Hard Drive into a 3.5-inch Drive Bay..................................................... 2-12
Installing a Hard Drive into a 5.25-Inch Drive Bay................................................... 2-15
Removing a Drive............................................................................................................ 2-16

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Installing and Removing an Expansion Board...................................................................... 2-19
Identifying the PCI and AGP Expansion Sockets ........................................................... 2-19
Installing an Expansion Board......................................................................................... 2-20
Removing an Expansion Board....................................................................................... 2-21
appendix A
Specifications
appendix B
Hard Drive Installation
Using the Cable-Select Feature with Ultra ATA Devices.......................................................B-1
Guidelines for Installing Ultra ATA IDE Devices..................................................................B-2
SCSI Devices...........................................................................................................................B-2
Guidelines for Using SCSI Devices...................................................................................B-2
Guidelines for Installing SCSI Devices.............................................................................B-5
SCSI Cables.............................................................................................................................B-5
Using a SCSI Cable...........................................................................................................B-5
Using SCSISelect with SCSI Devices .....................................................................................B-6
appendix C
Battery Replacement
Procedure for Replacing the Battery.......................................................................................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
Index......................................................................................................................................................I-1

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chapter 1
PRODUCT FEATURES
Standard Configuration Features
The Compaq Deskpro™ Workstation 300 is a minitower system that
can be easily converted to a desktop. Features may vary depending on
your model. For a complete listing of the hardware and software
installed in your workstation, run Compaq Diagnostics for Windows or
the INSPECT utility (available on some models). Instructions for using
these utilities are provided in the Troubleshooting Guide.

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Front Panel Components
Front panel components
1CD-ROM eject button
2CD-ROM drive activity light
3CD-ROM headphone jack
4CD-ROM volume
5Diskette drive activity light
6Diskette eject button
7Power button
8Power-on light
9Hard drive activity light

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Rear Panel Components
Rear panel components
1Power cord connector 8Microphone connector
2Voltage select switch 9Headphone/Line out connector*
3Parallel connector :Line-in audio connector
4Mouse connector ;Serial connector (Serial B)
5Keyboard connector wExternal SCSI connector (on select models)
6Serial connector (Serial A) eNetwork Interface Card (NIC) connector
7Four universal serial bus
(USB) connectors
rVGA (AGP) video connector
✎*Your workstation has integrated audio with premium internal speaker and digital
speaker support. Digital speakers must be Sound Blaster PCI 128 compatible. An
adapter is required. Speakers and adapter are not available as a Compaq option.

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I/O Panel Components
I/O panel components
1Heatsink
2Parallel connector
3Mouse connector
4Keyboard connector
5Serial connector (Serial B)
6Serial connector (Serial A)
7Four universal serial bus (USB) connectors
8Microphone connector
9Headphone/Line out connector*
:Line-in audio connector
✎*Your workstation has integrated audio with premium
internal speaker and digital speaker support. Digital
speakers must be Sound Blaster PCI 128 compatible. An
adapter is required. Speakers and adapter are not available
as a Compaq option.

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System Board Components
System board components
1Secondary IDE connector =SOS connector
2Power switch and LED connector >AGP expansion socket
3Primary IDE connector ?Five PCI expansion sockets
4Power button LED @Audio auxiliary
5CMOS reset button ACD audio connector
6Diskette drive connector BSystem fan connector
7PS-ON / 5V-AUX LED CMemory controller hub (MCH)
8Battery DPower supply connector (P3)
9Speaker connector EProcessor
:3.3V-AUX LED FChannel B RIMM sockets
;System ROM GChannel A RIMM sockets
<Password enabler jumper HPower supply connector

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Changing from a Minitower to a Desktop Configuration
To change from a minitower to a desktop configuration:
1. Shut down the operating system properly, then turn off the
workstation and any external devices.
2. Disconnect the power cord from the grounded AC outlet then
disconnect the network cable and any external devices from the
system.
3. Remove the workstation access panel. See “Removing the
Workstation Access Panel” in Chapter 2.
4. Remove the front bezel. See to “Removing the Front Bezel” in
Chapter 2.
5. Disconnect all power and data cables from the drives in the
5.25-inch drive bay.
6. To release a drive from the 5.25-inch drive bay, slide the drivelock
as shown. Carefully push the drive from the back of the unit until
the drive casing can be grasped.
Releasing the drives with the drivelock
CAUTION: Do not hold the face plate while removing a drive. Only
hold a drive by its casing.

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7. While holding the drive casing, gently pull the drive out of the
drive bay.
CAUTION: When removing a drive, do not pull the drive from the
front of the drive bay. To prevent damage to the drive bezel, push the
drive from the rear for removal from the front of the drive bay.
8. After placing the workstation in the desktop position, gently slide
the drives back into the bay.
Installing the drives
CAUTION: The use of unnecessary force when installing the drive
may result in damage to the drive.
✎Always place the diskette drive in the bay nearest the top of
the chassis (bay 3) in the desktop configuration to ensure
proper drive clearance and access. When all of the drives are
properly inserted, the drivelock will secure the drives in place.
9. Reconnect the power and data cables to the drives as labeled.

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10. Remove the subpanel
1as described in “Removing the Bezel
Blank” in Chapter 2, and reposition the subpanel 2with the bezel
blank in the proper orientation for the desktop configuration.
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 to a desktop configuration
✎When converting from a minitower to a desktop orientation,
use the replacement subpanel that was shipped with your
workstation to ensure that the Compaq logo is properly
oriented.
11. Replace the subpanel, front bezel, and the workstation access
panel. Be sure that the subpanel and front bezel align properly with
the alignment tabs.
12. Reconnect the power cord to the grounded AC outlet, then
reconnect the network cable and any external devices to the
system.

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Changing from a Desktop to a Minitower Configuration
To change from a desktop to a minitower configuration:
1. Shut down the operating system properly, then turn off the
workstation and any external devices.
2. Disconnect the power cord from the grounded AC outlet then
disconnect the network cable and any external devices from the
system.
3. Remove the workstation access panel. See to “Removing the
Workstation Access Panel” in Chapter 2.
4. Remove the front bezel. See to “Removing the Front Bezel” in
Chapter 2.
5. Disconnect all power and data cables from the drives in the
5.25-inch drive bay.
6. To release a drive from the 5.25-inch drive bay, press the
drivelock as shown.
Releasing the drives with the drivelock
7. While pressing the drivelock button, push from the back of the
drives until the drive casing can be grasped.
8. While holding the drive casing, pull the drives out of the drive bay.

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9. After placing the workstation in the minitower position, gently
slide the drives back into the bay.
Installing the drives
CAUTION: The use of unnecessary force when installing the drives
may damage the drives.
✎Always place the 3.5-inch, high-density diskette drive in the
third bay from the top (bay 3) in the minitower configuration
for proper clearance within the chassis. When the drives are
properly inserted, the drivelock will secure them.
10. Reconnect the power and data cables to the drives as labeled.

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11. Remove the subpanel
1as described in “Removing the Bezel
Blank” in Chapter 2, and reposition the subpanel 2with the bezel
blank in the proper orientation for the minitower configuration.
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 to a minitower configuration
✎When converting from a desktop to a minitower orientation,
use the replacement subpanel that is shipped with your
workstation to ensure that the Compaq logo is properly
oriented.
12. Replace the subpanel, front bezel, and workstation access panel.
Be sure that the subpanel and front bezel align properly with the
alignment tabs.
13. Reconnect the power cord to the grounded AC outlet, then
reconnect the network cable and any external devices to the
system.

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Keyboard
Your workstation ships with an Easy Access Keyboard. The following
figure identifies the location of keyboard lights and special function
keys.
Easy Access Keyboard components
Ref Component Function
1Ctrl key Used in combination with another key; its effect depends on the application
software you are using.
2Windows Logo key* Used to open the Start menu in Microsoft Windows 95. Used in combination
with other keys to perform other functions. (See “Windows Logo Key” later in
this section.)
3Alt key Used in combination with another key; its effect depends on the application
software you are using.
4Application key* Used (like the right mouse button) to open pop-up menus in a Microsoft
Office application. May perform other functions in other software applications.
5Easy Access keys Provides quick and easy access to favorite Web sites, applications, and
services.
6Editing keys Includes the following: Insert, Home, Page Up, Delete, End, and Page
Down.
NOTE: Holding down Ctrl and Alt while pressing Delete allows you to restart
your computer.
7Num Lock light Indicates whether the Num Lock feature is on or off.
8Caps Lock light Indicates whether the Caps Lock feature is on or off.
9Scroll Lock light Indicates whether the Scroll Lock feature is on or off.
*Keys available in select geographic regions.

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Easy Access Software
Your Easy Access Keyboard Buttons are programmed to default
assignments. The preinstalled Easy Access Software allows you to
reprogram the Easy Access Buttons to reflect your personal
preferences. The buttons can be reprogrammed to any program or
service of your choice or to any Web site (URL).
Reprogramming the Easy Access Buttons
The Easy Access Keyboard icon is located on the Windows desktop
Status bar. Refer to the Readme-user.txt file for instructions on
reprogramming the Easy Access Buttons.
Locking and Unlocking the Easy Access Buttons
The System Administrator can lock and unlock the Easy Access
Buttons. Once locked, the buttons can only be reprogramed by
modifying the .bcf file. For administrative privileges, which require
control of the Easy Access Button destinations, refer to the
Readme-admin.txt file.
Easy Access Paper Icon Insert
The paper icon insert functions as a visual aid in identifying the
programmed destination of each Easy Access Button. Whenever an
Easy Access Button is reprogrammed, use the Paper Insert Template
document to select and print an icon that reflects the new button
assignment. To create a new paper icon insert document, refer to the
Paper Insert Template.doc file.
✎To properly align, the spacing around the icons may require
adjustment.

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Windows Logo Key
Use the Windows Logo key in combination with other keys to perform
certain functions in Windows 2000 Professional and Windows NT
Workstation 4.0.
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 + ELaunches Explore My Computer
Windows logo key + FLaunches Find Document
Windows logo key + Ctrl + FLaunches Find Computer
Windows logo key + MMinimizes all open applications
Shift + Windows logo key + MUndoes Minimize All
Windows logo key + RDisplays Run dialog box
Special Mouse Functions
Most software applications support the use of a mouse. The functions
assigned to each mouse button depend on the software application you
are using.
Serial Number Location
Each computer has a unique serial number located on the corner of the
computer access panel and on the rear panel of the computer. Keep this
number available when contacting Compaq customer service.

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chapter 2
HARDWARE UPGRADES
This chapter explains how to remove the workstation access panel and
the front bezel. It also explains how to install the following hardware:
■ Memory
■ Drives
■ Expansion boards
✎Compaq recommends that you finish the setup procedures for
the preinstalled software before you install any optional
hardware or third-party devices that were not included with
your workstation.