Compaq Evo D300 - Convertible Minitower Operating and maintenance manual

b
Hardware Reference Guide
Compaq Evo Desktop Family: Desktop
Models
Document Part Number: 243850-002
January 2002
This book provides basic information for upgrading this series of
computers.

© 2002 Compaq Computer Corporation
Compaq, the Compaq logo, and Evo are trademarks of Compaq Information
Technologies Group, L.P.
Microsoft, MS-DOS, Windows, Windows NT are trademarks of Microsoft
Corporation.
Intel, Pentium, Intel Inside, and Celeron are trademarks of Intel Corporation.
All other product names mentioned herein may be trademarks of their respective
companies.
Compaq shall not be liable for technical or editorial errors or omissions
contained herein. The information in this document is provided “as is” without
warranty of any kind and 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.
ÅWARNING: Text set off in this manner indicates that failure to follow
directions could result in bodily harm or loss of life.
ÄCAUTION: Text set off in this manner indicates that failure to follow
directions could result in damage to equipment or loss of information.
Printed in the U.S.A.
Hardware Reference Guide
Second Edition (January 2002)
Document Part Number: 243850-002

Hardware Reference Guide iii
Contents
1 Product Features
Standard Configuration Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Front Panel Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Rear Panel Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Easy Access Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
Easy Access Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Reprogramming the Easy Access Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Locking and Unlocking the Easy Access Buttons . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Easy Access Paper Icon Insert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Windows Logo Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Special Mouse Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
2 Hardware Upgrades
Serviceability Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Installation Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Removing the Computer Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
Replacing the Computer Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
Removing the Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Removing Bezel Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Installing Additional Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
Installing or Removing an Expansion Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
Removing an Expansion Slot Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
Removing or Installing an Expansion Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10
Drive Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–12
Removing a Drive from the Drive Bay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–13
Installing Additional Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–14
Installing a CD-ROM, DVD-ROM, or other Removable Storage Device . . . . . . 2–15
Installing a Hard Drive into a 3.5-inch Drive Bay . . . . . . . . . . . . . . . . . . . . . . . . 2–16

iv Hardware Reference Guide
Contents
A Specifications
B Hard Drive Installation Guidelines
Using the Cable-Select Feature with Ultra ATA Devices. . . . . . . . . . . . . . . . . . . . . . . B–1
Guidelines for Installing Ultra ATA Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–2
SCSI Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–3
Guidelines for Using SCSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–3
Guidelines for Installing Optional SCSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . B–5
SCSI Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–5
SCSI Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–6
Using a SCSI Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–6
Using SCSISelect with SCSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–6
Choosing the Quiet Drive Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–7
C Battery Replacement
D Security Lock Provisions
Installing a Security Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–1
E Electrostatic Discharge
Preventing Electrostatic Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–1
Grounding Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–1
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

Hardware Reference Guide 1–1
1
Product Features
Standard Configuration Features
The Compaq Evo™ Desktop features may vary depending on your
model. For a complete listing of the hardware and software installed
in your computer, run Compaq Diagnostics for Windows or the
INSPECT utility (available on some models). Instructions for using
these utilities are provided in the Troubleshooting Guide on the
Reference Library CD.

1–2 Hardware Reference Guide
Product Features
Front Panel Components
Front Panel Components
1Diskette Drive Activity Light 6Hard Drive Activity Light
2Power Button 7Microphone Connector (optional)
3Diskette Eject Button 8Universal Serial Bus (USB)
(optional)
4CD-ROM Drive Busy Indicator 9Stereo Headphone Jack (optional)
5CD-ROM Eject Button -Power On Light

Hardware Reference Guide 1–3
Product Features
Rear Panel Components
ÅWARNING: To reduce the risk of electric shock or damage to the equipment:
■Do not disable the power supply 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 the power from the computer by unplugging the power
cord from either the electrical outlet or the computer.
Rear Panel Components
1Power Cord Connector 7Parallel Port Connector
2Voltage Select Switch 8Microphone Connector
3Keyboard Connector 9Line-In Audio
4Mouse Connector -Line-Out Audio
5Universal Serial Bus (USB) qSerial Connector
6RJ-45 Connector

1–4 Hardware Reference Guide
Product Features
Easy Access Keyboard
Compaq Easy Access Keyboard Components
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.
Used in combination with other keys to perform other
functions.
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.
5Internet Keys Provides quick access to specific Internet destinations.

Hardware Reference Guide 1–5
Product Features
Easy Access Software
Your Easy Access Keyboard Buttons are programmed to default
assignments. The pre installed 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 about
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 reprogrammed by
modifying the .bcf file. For administrative privileges, which require
control of the Easy Access Button destinations, refer to the
Readme-admin.txt file.
6Editing Keys Includes the following: Insert, Home, Page Up, Delete,
End, and Page Down.
✎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.
Compaq Easy Access Keyboard Components (Continued)

1–6 Hardware Reference Guide
Product Features
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 you
reprogram an Easy Access Button, use the Paper Insert Template
document to select and print an icon that reflects the new button
assignment. The Paper Insert Template.doc is installed, by default,
under C:\Program files\Compaq\Easy Access Keyboard.
For proper alignment, the spacing around the icons may require
adjustment.
Windows Logo Key
Use the Windows Logo Key in combination with other keys to
perform certain functions available in the Windows operating
systems.
Special Mouse Functions
Most software applications support the use of a mouse. The functions
assigned to each mouse button depend on the software applications
you are using.
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 + f Launches Find Computer
Windows Logo Key + mMinimizes all open applications
Shift + Windows Logo Key + m Undoes Minimize All
Windows Logo Key + rDisplays the Run dialog box

Hardware Reference Guide 1–7
Product Features
Serial Number Location
Each computer has a unique serial number which may be located on
the cover top 1or the rear panel 2of the computer. Keep this number
available for use when contacting Compaq customer service for
assistance.
Serial Number Location

1–8 Hardware Reference Guide
Product Features

Hardware Reference Guide 2–1
2
Hardware Upgrades
Serviceability Features
Your computer includes features that make it easier to upgrade and
service.
Installation Sequence
It is very important that you follow this sequence of steps to ensure
the proper installation of any optional equipment. For more
information about Computer Setup, refer to the Computer Setup
Guide.
1. If the computer is already on, turn it off and disconnect the power
cord from the wall outlet.
ÅWARNING: 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.
ÅWARNING: 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.
ÄCAUTION: Static electricity can damage the electrical 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. See Appendix E, “Electrostatic
Discharge,” for more information.
2. Open the computer by removing its outside cover. See the
procedures for removing the computer cover.

2–2 Hardware Reference Guide
Hardware Upgrades
3. Install any optional equipment. See the applicable sections of this
guide or to the documentation provided with the optional
equipment for instructions.
4. Replace the computer cover.
5. Turn on the monitor, computer, and any devices you want to test.
6. Reconfigure the computer, if necessary. Refer to the Computer
Setup Guide for instructions about using Computer Setup.

Hardware Reference Guide 2–3
Hardware Upgrades
Removing the Computer Cover
To remove the computer cover:
1. Shut down the operating system properly, then power off the
computer and any external devices.
2. Disconnect the power cord from the power outlet, and disconnect
any external devices.
ÄCAUTION: Before removing the computer cover, ensure that the
computer is turned off and that the power cord is disconnected from the
electrical outlet.
3. Loosen the two captive thumbscrews that secure the cover to the
computer chassis.
4. Slide the cover back about 1 inch (2.5 cm), then lift it up and off
the unit.
Removing the Computer Cover

2–4 Hardware Reference Guide
Hardware Upgrades
Replacing the Computer Cover
To replace the computer cover:
1. Hold the cover over the chassis, then rest the guide tabs located
inside the cover on the diagonal ramps at the rear of the chassis.
2. Slide the cover along the ramps and into place on the chassis.
3. Tighten the two captive thumbscrews.
Replacing the Computer Cover

Hardware Reference Guide 2–5
Hardware Upgrades
Removing the Front Bezel
1. Shut down the operating system properly, then power off the
computer and any external devices. Disconnect the power cord
from the power outlet and disconnect any external devices.
2. Remove the computer cover.
3. Pull up on the two release tabs, then rotate the front bezel away
from the chassis to release it.
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. Shut down the operating system properly, then power off the
computer and any external devices. Disconnect the power cord
from the power outlet and disconnect any external devices.
2. Remove the computer cover.
3. Remove the front bezel.
4. Gently pinch the release mechanism, then remove the desired
bezel blank.

2–6 Hardware Reference Guide
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 and 845 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, 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.
ÄCAUTION: Some models support ECC memory and some support
non-ECC memory. For those systems that do support ECC, Compaq
does not support mixing ECC and non-ECC memory. Doing so will
cause the system to blink the NUMLOCK LED on the keyboard
continuously and, if a speaker is installed in the system, there will be a
short beep followed by 2 long beeps. In addition, the system will not
boot the operating system.

Hardware Reference Guide 2–7
Hardware Upgrades
Installing DIMMs
ÄCAUTION: 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.
ÄCAUTION: 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.
ÄCAUTION: When handling a memory module, be careful not to touch
any of the contacts. Doing so may damage the module.
1. Shut down the operating system properly, then power off the
computer and any external devices, then disconnect the power
cord from the power outlet.
2. Remove the cover and locate the memory module sockets.
ÅWARNING: To reduce risk of personal injury from hot surfaces, allow
the internal system components to cool before touching.

2–8 Hardware Reference Guide
Hardware Upgrades
3. Open both latches of the memory module socket 1, and insert the
memory module into the socket 2.
Installing a DIMM
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 3.