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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.
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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
Easy Access Paper Icon Insert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Windows Logo Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Special Mouse Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
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
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Contents
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
Installing a Security Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–1
Preventing Electrostatic Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–1
Grounding Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–1
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
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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.
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Product Features
Front Panel Components
Front Panel Components
1
2
3
Diskette Drive Activity Light
Power Button
6
7
8
Hard Drive Activity Light
Microphone Connector (optional)
Diskette Eject Button
Universal Serial Bus (USB)
(optional)
4
5
CD-ROM Drive Busy Indicator
CD-ROM Eject Button
9
-
Stereo Headphone Jack (optional)
Power On Light
1–2
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Product Features
Rear Panel Components
Rear Panel Components
1
2
3
4
5
6
Power Cord Connector
Voltage Select Switch
Keyboard Connector
Mouse Connector
7
8
9
-
q
Parallel Port Connector
Microphone Connector
Line-In Audio
Line-Out Audio
Universal Serial Bus (USB)
RJ-45 Connector
Serial Connector
Å WARNING: 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.
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Product Features
Easy Access Keyboard
Compaq Easy Access Keyboard Components
1
2
Ctrl Key
Used in combination with another key; its effect
depends on the application software you are using.
Windows Logo Key*
Used to open the Start menu in Microsoft Windows.
Used in combination with other keys to perform other
functions.
3
4
Alt Key
Used in combination with another key; its effect
depends on the application software you are using.
Application 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.
5
Internet Keys
Provides quick access to specific Internet destinations.
1–4
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Product Features
Compaq Easy Access Keyboard Components (Continued)
6
Editing 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.
7
8
9
Num Lock light
Caps Lock light
Scroll Lock light
Indicates whether the Num Lock feature is on or off.
Indicates whether the Caps Lock feature is on or off.
Indicates whether the Scroll Lock feature is on or off.
*Keys available in select geographic regions.
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.
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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.
Windows Logo Key + F1
Displays a pop-up menu for the selected object
Activates the next Taskbar button
Launches Explore My Computer
Launches Find Document
Windows Logo Key + Tab
Windows Logo Key + e
Windows Logo Key + f
Windows Logo Key + Ctrl + f
Windows Logo Key + m
Shift + Windows Logo Key + m
Windows Logo Key + r
Launches Find Computer
Minimizes all open applications
Undoes Minimize All
Displays the 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 applications
you are using.
1–6
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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
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Product Features
1–8
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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.
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.
Å
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.
Å
Ä
CAUTION: 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.
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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.
2–2
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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.
CAUTION: Before removing the computer cover, ensure that the
computer is turned off and that the power cord is disconnected from the
electrical outlet.
Ä
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
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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
2–4
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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.
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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.
CAUTION: 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.
Ä
2–6
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Installing DIMMs
CAUTION: Your memory module sockets have gold metal contacts.
Ä
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.
Ä
Ä
CAUTION: 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.
WARNING: To reduce risk of personal injury from hot surfaces, allow
the internal system components to cool before touching.
Å
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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.
2–8
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Installing or Removing an Expansion Card
Removing an Expansion Slot Cover
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 computer cover and locate the correct vacant slot in
the computer chassis.
3. Remove the screw securing the slot cover, then remove the
expansion slot cover from the slot as illustrated.
Removing an Expansion Slot Cover
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Removing or Installing an Expansion Card
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 computer cover.
3. If installing an expansion card, skip to step 8.
4. To remove an installed expansion card, disconnect any cables
attached to the expansion card.
5. Remove the screw at the side of the expansion slot.
6. Hold the card at each end and carefully rock it back and forth
until the connectors pull free from the slot. Be sure not to scrape
the card against other components.
Removing an Expansion Card
2–10
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7. Store the card in anti-static packaging.
8. Install an expansion slot cover or new expansion card to close the
open slot.
9. If not installing a new expansion card, skip to step 11.
10. To install a new expansion card in an open slot, remove the
expansion slot cover.
11. Slide the expansion card into the expansion slot and press it
firmly into place.
When you install an expansion card, make sure you press firmly on
the card so that the whole connector seats properly in the expansion
card slot.
✎
12. Replace the screw at the side of the expansion slot.
13. Connect external cables to the installed card, if needed. Connect
internal cables to the system board, if needed.
14. Replace the computer cover.
15. Reconfigure the computer, if necessary.
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Drive Positions
1
One standard 3.5-inch, 1.44-MB diskette drive mounted
with a drive adapter in the 5.25-inch, one-third height bay
(labeled as drive bay 3)
2 3
4 5
Two internal 3.5-inch, one-third height bays for hard
drives (labeled as drive bays 4 and 5)
Two 5.25-inch, half-height bays for optional drives
(labeled as drive bays 1 and 2)
To verify the type and size of the storage devices installed in
your computer, run Compaq Computer Setup. Refer to the Computer
Setup Guide for more information.
Drive bay numbers are stamped on the chassis, behind the front bezel.
✎
2–12
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Removing a Drive from the Drive Bay
1. Shut down the operating system properly, then power off the
computer, disconnect the power cord from the power outlet, and
remove the computer cover.
2. Remove the front bezel.
3. Disconnect the drive power and signal cables and, if it is a
CD-ROM or DVD-ROM drive, disconnect the audio connector.
4. If removing a hard drive, lift up on the power switch bracket, then
rotate down to gain access to the drive bay.
5. Press the drivelock mechanism to unlock the drive in the
drive bay.
6. While pressing the drivelock 1, pull the drive out of the
drive bay 2.
Removing a Drive from the Drive Bay
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Removing a Drive from the Drive Bay
7. Remove the drive from the drive bay and store in anti-static
packaging.
Installing Additional Drives
The computer supports up to five drives which may be installed in
various configurations.
When installing additional drives, follow these guidelines:
ꢀ
For optimal performance, connect hard drives to the primary
controller. Connect expansion devices, such as CD-ROM, IDE
tape, and diskette drives to the secondary controller.
ꢀ
ꢀ
You may install either a third-height or a half-height drive into a
half-height bay.
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 front of the computer chassis, behind the
front bezel. Some options use metric hardware. The
Compaq-supplied metric screws are black.
2–14
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Ä ꢀCAUTION: To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a hard drive, shut down the
operating system properly, then turn off the computer. Do not
remove a hard drive while the computer is on or in standby mode.
ꢀ
Before handling a drive, ensure that you are discharged of static
electricity. While handling a drive, avoid touching the connector. For
more information about preventing electrostatic damage, refer to
Appendix E, "Electrostatic Discharge."
ꢀ
ꢀ
ꢀ
le:
Handle a drive carefully, do not drop it.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or
products that have magnetic fields such as monitors or speakers.
Installing a CD-ROM, DVD-ROM, or other Removable Storage
Device
1. Shut down the operating system properly, then turn off the
computer and any external devices, disconnect the power cord
from the power outlet, and remove the computer cover.
2. Remove the front bezel. See “Removing the Front Bezel.”
3. Install four guide screws, two guide screws on each side of the
drive.
Some options use metric hardware. Extra guide screws are provided
on the front of the chassis, under the front bezel. The
Compaq-supplied metric screws are black.
✎
4. Install the drive in the desired drive bay by sliding it into the front
of the drive cage; the drivelock automatically secures the drive in
the bay.
Be sure the guide screws line up with the guide slots in the drive cage.
✎
5. If it is a CD-ROM or DVD-ROM drive and if analog audio is
preferred to digital audio, connect the audio cable 1. The other
end of the audio cable 1should be connected to the embedded
audio connector on the system board.
6. Connect the signal 2and drive power 3cables.
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Connecting Cables
Remove the appropriate bezel blank from the front bezel. See the
section “Removing Bezel Blanks” for more information.
7. Replace the front bezel.
8. Replace the computer cover.
9. Reconfigure the computer, if necessary.
Installing a Hard Drive into a 3.5-inch Drive Bay
Compaq does not support mixing IDE and SCSI hard drives in the
same system. If you are replacing a hard drive in bay 4 or bay 5, it
should be of the same type.
✎
To install a hard drive in a 3.5-inch drive bay:
1. Shut down the operating system properly, then power off the
computer and any external drives, disconnect the power cord
from the power outlet, and remove the computer cover.
2. Remove the front bezel. See, “Removing the Front Bezel.”
2–16
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3. Lift up on the power switch bracket, then rotate down to gain
access to the drive bay.
Removing the Power Switch Bracket
4. Insert the hard drive into the bay from the front of the chassis.
Push it in until it locks into place.
Be sure that the power switch LED cables remain under the hard
drive.
✎
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Hardware Upgrades
5. Connect the signal 1and power 2cables to the hard drive.
Connecting Cables
6. Connect the opposite end of the cables to the appropriate system
board connector.
7. Lift the power switch bracket up and into position on the front of
the chassis.
8. Replace the front bezel.
9. Replace the computer cover.
10. Reconfigure the computer, if necessary.
2–18
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A
Specifications
3
Compaq Evo Desktop (Intel Pentium 4)
Dimensions
5.72 in
15.25 in
17.90 in
14.53 cm
38.74 cm
45.47 cm
Height
Width
Depth
Approximate Weight
25 lb
11.34 kg
45.5 kg
Weight Supported (maximum distributed load)
Temperature Range
100.0 lb
50° to 95°F
-4° to 140°F
10° to 35°C
-20° to 60°C
Operating
Nonoperating
Relative Humidity (noncondensing)
Operating
Nonoperating
20% to 80%
10% to 90%
20% to 80%
10% to 90%
Maximum Altitude (unpressurized)
Operating
Nonoperating
10,000 ft
30,000 ft
3048 m
9144 m
Power Supply
Operating Voltage Range
Rated Voltage Range*
Rated Line Frequency
90-132 VAC
100-127 VAC
50-60 Hz
180-264 VAC
200-240 VAC
50-60 Hz
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Specifications
Compaq Evo Desktop (Intel Pentium 4) (Continued)
Power Output
235 W
4 A
235 W
2 A
Rated Input Current (maximum)*
Heat Dissipation
Maximum
Nominal
1234 BTU/hr
617 BTU/hr
311 kg-cal/hr
155 kg-cal/hr
*This system utilizes a full-ranging, active power factor corrected power supply to greatly reduce the
input current amplitude and harmonics. No input voltage select switch is required.
Compaq Evo Desktop (Intel Pentium III/Celeron)
Dimensions
15.25 in
5.72 in
17.90 in
38.74 cm
14.52 cm
45.47 cm
Height
Width
Depth
Approximate Weight
25 lb
11.34 kg
45.5 kg
Weight Supported (maximum distributed load)
100.0 lb
Temperature Range
50° to 95°F
-4° to 140°F
10° to 35°C
-20° to 60°C
Operating
Nonoperating
Relative Humidity (noncondensing)
Operating
Nonoperating
20% to 80%
10% to 90%
20% to 80%
10% to 90%
Maximum Altitude (unpressurized)
Operating
Nonoperating
10,000 ft
30,000 ft
3048 m
9144 m
A–2
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Specifications
Compaq Evo Desktop (Intel Pentium III/Celeron) (Continued)
Power Supply
Operating Voltage Range
90-132 VAC
180-264 VAC
200-240 VAC
50-60 Hz
Rated Voltage Range*
100-127 VAC
Rated Line Frequency
50-60 Hz
Power Output
145 W
145 W
5 A
Rated Input Current (maximum)*
2.5 A
Heat Dissipation
Maximum
Nominal
192 kg-cal/hr
96 kg-cal/hr
760 BTU/hr
380 BTU/hr
*This system utilizes a full-ranging, active power factor corrected power supply to greatly reduce the
input current amplitude and harmonics. No input voltage select switch is required.
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Specifications
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B
Hard Drive Installation Guidelines
Using the Cable-Select Feature with Ultra ATA Devices
Optional drives are available from Compaq in kits that include a
special drive cable. The configuration of the drive employs a
cable-select feature that identifies the drive as device 0 (primary
drive) or device 1 (secondary drive).
Device 1 is the drive connected to the cable’s middle connector.
Device 0 is the drive connected to the cable’s end connector (applies
only to 80-conductor ATA cables). See “Guidelines for Installing
Ultra ATA Devices” in this appendix for an example of an Ultra
ATA cable.
Compaq hard drives ship with jumpers preset to cable-select mode;
therefore, no jumper setting changes on the existing or optional drives
are required. If you purchase a third-party hard drive, refer to the
documentation included with the kit to ensure proper installation and
configuration of cables.
If installing a second device on the primary controller, you must use
an 80-conductor Ultra ATA cable for optimal performance. This cable
is standard on select models.
✎
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Hard Drive Installation Guidelines
Guidelines for Installing Ultra ATA Devices
When installing additional Ultra ATA drives, follow these guidelines:
ꢀ
If using multiple Ultra ATA devices, Compaq recommends that
the devices be split between the primary and secondary Ultra
ATA channels for optimum performance. Use an additional
Ultra ATA cable to connect the additional device to the system
board.
ꢀ
80-conductor Ultra ATA cable:
❏
18 inches maximum total length, 80-conductor cable with
maximum spacing of 6 inches between Device 0 and
Device 1.
80-Conductor Ultra ATA Cable
1
2
3
Device 0 (master drive) connector
Device 1 (slave drive) connector
System board connector
ꢀ
For optimal performance, connect hard drives to the primary
controller. Connect expansion devices, such as ATA CD-ROM
and DVD-ROM drives, tape drives, and diskette drives, to the
secondary controller.
ꢀ
ꢀ
Install either a third-height or a half-height drive into a
half-height bay.
Install guide screws to ensure that the drive lines up correctly in
the drive cage. Compaq has provided extra guide screws installed
in the front of the computer chassis behind the front bezel. Some
options use M3 metric hardware. Compaq supplied metric screws
are black.
ꢀ
If only one device is connected to a cable, that device must be
attached to the end (Device 0) connector.
B–2
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Hard Drive Installation Guidelines
SCSI Devices
This section contains information relating to SCSI device guidelines
and installation.
Guidelines for Using SCSI Devices
When installing and operating SCSI devices, you must follow these
guidelines:
ꢀ
A single Ultra SCSI controller supports up to seven SCSI devices
per channel.
ꢀ
Each Wide-Ultra SCSI, Ultra-Wide SCSI, Wide Ultra2 SCSI,
Ultra 320 SCSI, or Ultra 160 SCSI controller supports up to
15 SCSI devices per channel.
ꢀ
ꢀ
If using multiple SCSI devices, Compaq recommends that the
devices be split between Channel A and Channel B, if available,
for optimum performance.
SCSI cable recommendation:
❏
53 inches maximum length twisted-pair, LVD cable with
built-in terminator, maximum of 5 drives with a minimum
driving spacing of 5.25 inches.
ꢀ
The SCSI controller requires a unique SCSI ID (0-7 or 8-15) for
each SCSI device installed. The controller identifies a SCSI
device by its SCSI ID number rather than by its location. Moving
a SCSI device from one position to another on the SCSI chain
does not affect communication between the controller and the
device. The reserved and available SCSI ID numbers for SCSI
devices are:
❏
❏
❏
0—reserved for the primary hard drive
7—reserved for the controller
1 through 6 and 8 through 15—available for all other
SCSI devices
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Hard Drive Installation Guidelines
ꢀ
Every SCSI chain or circuit must be terminated (closed) at both
ends. Termination can be accomplished through one of the
following methods:
❏
❏
❏
❏
Using a cable with a built-in terminator. This cable was
shipped with your computer.
Using a cable with a terminating resistor plug in the last
connector.
Connecting a SCSI device with its termination enabled into
the last connector.
Connecting an external SCSI device with its termination
enabled to the external SCSI connector on the rear panel of
the computer.
ꢀ
ꢀ
ꢀ
Turn on all external SCSI devices before turning on the power to
the computer. This action enables the SCSI controller to
recognize the external devices.
The system accommodates a combination of internal and external
SCSI devices, such as hard drives, tape drives, and CD-ROM
drives.
Compaq does not recommend mixing different-width SCSI
devices on the same SCSI chain or on the same SCSI channel.
Mixing devices of different widths on the same chain or channel
will always result in the data transfer rate of the slowest device in
that chain. It is acceptable to mix Wide-Ultra2, Ultra 160, and
Ultra 320 devices on a single channel. Do not put narrow devices
on a channel with any device type other than another narrow
device.
For additional information about optional SCSI devices, refer to the
documentation included with the device or contact your Compaq
authorized dealer, reseller, or service provider.
CAUTION: Do not route cables near the air intake to the power supply.
Cables routed in this manner can block airflow to the power supply,
causing it to overheat.
Ä
B–4
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Hard Drive Installation Guidelines
Guidelines for Installing Optional SCSI Devices
If you mix Ultra ATA and SCSI hard drives in the same system, the
Ultra ATA drive will be the boot drive unless the boot order is
changed in the F10 Setup.
✎
When replacing a hard drive, the replacement drive should be of the
same type as the drive being removed. If you are replacing an Ultra
ATA hard drive with a SCSI hard drive, you will need a multimode
Low Voltage Differential (LVD) SCSI cable option kit.
If only one SCSI hard drive is used, it should be installed in bay 4 if
your computer has four or more bays.
Before installing a SCSI device:
ꢀ
Verify the SCSI ID of the drive and, if necessary, set the SCSI ID
to a unique number. See “Guidelines for Using SCSI Devices” in
this appendix or refer to the documentation included with the
device.
ꢀ
Determine if the device requires that termination be enabled or
disabled. Set the termination if necessary. See “Using a SCSI
Cable” in this appendix or refer to the documentation included
with the device.
Some devices may not have terminating jumpers on the device.
Termination on these devices must be achieved with terminated cable.
✎
Turn on an external SCSI device before turning on power to the
computer. This enables the system board controller to recognize the
external SCSI device and automatically reset. When an external SCSI
device is connected to the external SCSI connector on the rear panel
of the computer, that device becomes the end of the SCSI chain and
must be terminated.
SCSI Controllers
Select models such as workstations ship with an integrated single
channel Ultra 160 SCSI controller with an internal connector on the
system board.
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Hard Drive Installation Guidelines
SCSI Cables
The front drive bays are available for installing or connecting mass
storage SCSI devices.
Using a SCSI Cable
Select models ship with a multimode SCSI cable that supports
Low Voltage Differential (LVD) or single-ended devices. The cable
accommodates up to three SCSI devices in the front drive bay area
(UATA models do not have the SCSI cable).
Five-Device SCSI Cable with Terminator
The cable that shipped with your computer may look different than
the one illustrated (a five-device cable).
✎
For additional information about installing optional SCSI devices,
refer to the documentation included with the device option kit or
contact your Compaq authorized dealer, reseller, or service provider.
Using SCSISelect with SCSI Devices
The SCSI host adapter includes the SCSISelect utility to configure the
host adapter and to run SCSI disk utilities. To run the SCSISelect
utility:
ꢀ
ꢀ
In Post Messages Enabled mode: Press Ctrl+A when the
Press <Ctrl><A> for SCSISelect Utility message displays
during POST.
In Post Messages Disabled mode: When the Compaq logo screen
displays, press any key to exit the logo screen. Immediately after
exiting the logo screen, press Ctrl+A to access the SCSISelect
utility.
B–6
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Hard Drive Installation Guidelines
A menu displays with the following options:
ꢀ Configure/View Host Adapter Settings
❏
SCSI Bus Interface Definitions
ꢁ
ꢁ
ꢁ
Host Adapter SCSI ID
SCSI Parity Checking
Host Adapter SCSI Termination
❏
Additional Options
ꢁ
ꢁ
ꢁ
Boot Device Options
SCSI Device Configuration
Advanced Configuration Options
ꢀ
SCSI Disk Utilities
Lists all SCSI devices and SCSI ID numbers
For additional information about configuring POST message
display status, refer to the Computer Setup Guide on the Reference
Library CD.
✎
Choosing the Quiet Drive Options
The Quiet Drive is an optional feature and may or may not be
included on your computer.
✎
If this computer is equipped with a Quiet Drive or, if you choose to
install a Quiet Drive, you may configure the drive to operate in Quiet
mode or Performance mode (default). When idle, the Quiet Drive
produces an acoustic noise level approximately 4 decibels (dB) lower
than that of a standard drive. When configured to operate in Quiet
mode, the Quiet Drive reads and writes data at an acoustic noise level
approximately 7 dB lower than that of a standard drive.
When configured to operate in Quiet mode, the drive will not operate
at maximum performance levels. For maximum drive performance,
set the drive to operate in Performance mode.
✎
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Hard Drive Installation Guidelines
To determine if your computer contains a Quiet Drive or to activate
Quiet mode, complete the following steps:
1. Turn on or restart the computer. If you are in Windows, click Start
> Shut Down > Restart the Computer.
2. When the F10 = Setup message displays in the lower-right corner
of the screen, press the F10 key.
If you do not press the F10 key while the message is displayed, you
must restart the computer to access the utility.
✎
✎
3. Select your language from the list and press the Enter key.
4. A choice of five headings displays in the Computer Setup
Utilities menu. Using the arrow keys or the Tab key, select
Storage > Device Configuration.
5. Select the drive from the list of devices. Press the Enter key.
6. Select Quiet Drive > Quiet (Performance is the factory-set
default.)
If the Quiet Drive option is not displayed, your computer does not
contain a Quiet drive.
7. To apply and save changes, select File > Save Changes.
B–8
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C
Battery Replacement
The battery that comes with your computer provides power to the
real-time clock and has a minimum lifetime of about three years.
When replacing the battery, use a battery equivalent to the battery
originally installed on your computer. Your computer comes with a
3-volt lithium coin cell battery.
The lifetime of the lithium battery can be extended by plugging the
computer into a live AC wall socket. The lithium battery is only used
when the computer is NOT connected to AC power.
✎
WARNING: Your computer contains an internal lithium manganese dioxide
battery. There is a risk of fire and burns if the battery is not handled properly.
To reduce the risk of personal injury:
Å
ꢀ
ꢀ
ꢀ
Do not attempt to recharge the battery.
Do not expose to temperatures higher than 60°C (140ºF).
Do not disassemble, crush, puncture, short external contacts, or
dispose of in fire or water.
ꢀ
Replace the battery only with the Compaq spare designated for this
product.
CAUTION: Before replacing the battery, it is important to back up the
computer CMOS settings. When the battery is removed or replaced, the
CMOS settings will be cleared. Refer to the Troubleshooting Guide for
information on backing up the CMOS settings.
Ä
N
Batteries, battery packs, and accumulators should not be disposed of
together with the general household waste. In order to forward them to
recycling or proper disposal, please use the public collection system or
return them to Compaq, their authorized partners, or their agents.
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Battery Replacement
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.
Ä
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, disconnect the power cord from the
electrical outlet, and remove the computer cover or access panel.
It may be necessary to remove an expansion card to gain access to the
battery.
✎
3. Locate the battery and battery holder on the system board.
4. Depending on the type of battery holder on your system board,
complete the following instructions to replace the battery.
Type 1
a. Lift the battery out of its holder.
Removing a Coin Cell Battery (Type 1)
C–2
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Battery Replacement
b. Slide the replacement battery into position, positive side up.
The battery holder automatically secures the battery in the proper
position.
Type 2
a. To release the battery from its holder, squeeze the metal
clamp that extends above one edge of the battery.
b. When the battery pops up, lift it out.
Removing a Coin Cell Battery (Type 2)
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Battery Replacement
c. To insert the new battery, slide one edge of the replacement
battery under the holder’s lip with the positive side up. Push
the other edge down until the clamp snaps over the other edge
of the battery.
Replacing a Coin Cell Battery (Type 2)
After the battery has been replaced, use the following steps to
complete this procedure.
✎
5. Replace the computer cover or access panel.
6. Plug in the computer and turn on power to the computer.
7. Reset the date and time, your passwords, and any special system
setups, using Compaq Computer Setup. Refer to the Computer
Setup Guide.
If you normally lock the Smart Cover Lock, use Computer Setup
to relock the lock and enable the Smart Cover Sensor.
C–4
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D
Security Lock Provisions
Installing a Security Lock
There are several different security locks that may be used to
secure the computer. The following illustrations portray some of
the available security provisions which vary by model. Because of
chassis differences, the slots may be located in a different position
than shown.
Installing Compaq Type 1 Security Bracket (may vary by model)
WARNING: To avoid injury, use care in handling the separated pieces of
the security bracket; metal edges may be sharp. Be sure to install the
bracket so that sharp edges do not extend from the edges of the
computer chassis.
Å
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Security Lock Provisions
Installing Compaq Type 2 Security Bracket (may vary by model)
WARNING: To avoid injury, use care in handling the separated pieces of
the security bracket; metal edges may be sharp. Be sure to install the
bracket so that sharp edges do not extend from the edges of the
computer chassis.
Å
D–2
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Security Lock Provisions
Installing a Kensington Cable Lock with a Compaq Type 2
Bracket (may vary by model)
WARNING: To avoid injury, use care in handling the separated pieces of
the security bracket; metal edges may be sharp. Be sure to install the
bracket so that sharp edges do not extend from the edges of the
computer chassis.
Å
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Security Lock Provisions
Installing a Kensington Cable Lock (may vary by model)
Installing a Kensington Cable Lock (may vary by model)
D–4
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E
Electrostatic Discharge
A discharge of static electricity from a finger or other conductor may
damage system boards or other static-sensitive devices. This type of
damage may reduce the life expectancy of the device.
Preventing Electrostatic Damage
To prevent electrostatic damage, observe the following precautions:
ꢀ
ꢀ
ꢀ
Avoid hand contact by transporting and storing products in
static-safe containers.
Keep electrostatic-sensitive parts in their containers until they
arrive at static-free workstations.
Place parts on a grounded surface before removing them from
their containers.
ꢀ
ꢀ
Avoid touching pins, leads, or circuitry.
Always be properly grounded when touching a static-sensitive
component or assembly.
Grounding Methods
There are several methods for grounding. Use one or more of the
following methods when handling or installing electrostatic-sensitive
parts:
ꢀ
Use a wrist strap connected by a ground cord to a grounded
workstation or computer chassis. Wrist straps are flexible straps
with a minimum of 1 megohm +/- 10 percent resistance in the
ground cords. To provide proper ground, wear the strap snug
against the skin.
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Electrostatic Discharge
ꢀ
Use heelstraps, toestraps, or bootstraps at standing workstations.
Wear the straps on both feet when standing on conductive floors
or dissipating floor mats.
ꢀ
ꢀ
Use conductive field service tools.
Use a portable field service kit with a folding static-dissipating
work mat.
If you do not have any of the suggested equipment for proper
grounding, contact your Compaq authorized dealer, reseller, or
service provider.
For more information on static electricity, contact your Compaq
authorized dealer, reseller, or service provider.
✎
E–2
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F
Routine Computer Care and
Shipping Preparation
Routine Computer Care
Follow these suggestions to take care of your computer and monitor:
ꢀ
Operate the computer on a sturdy, level surface. Leave a 3-inch
(7.6-cm) clearance at the back of the system unit and above the
monitor to permit the required airflow.
ꢀ
ꢀ
Never operate the computer with the cover or side panel removed.
Never restrict the airflow into the computer by blocking the front
vents or air intake. Do not place the keyboard, with the keyboard
feet down, directly against the front of the desktop unit as this
also restricts airflow.
ꢀ
Keep the computer away from excessive moisture, direct sunlight,
and extremes of heat and cold. For information about the
recommended temperature and humidity ranges for your
computer, refer to Appendix A, “Specifications,” in this guide.
ꢀ
ꢀ
Keep liquids away from the computer and keyboard.
Never cover the ventilation slots on the monitor with any type of
material.
ꢀ
Turn off the computer before you do either of the following:
❏
Wipe the exterior of the computer with a soft, damp cloth as
needed. Using cleaning products may discolor or damage the
finish.
❏
Occasionally clean the air vents on the front and back of the
computer. Lint and other foreign matter can block the vents
and limit the airflow.
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Routine Computer Care and Shipping Preparation
CD-ROM Drive Precautions
Be sure to observe the following guidelines while operating or
cleaning your CD-ROM drive.
Operation
ꢀ
ꢀ
Do not move the drive during operation. This may cause it to
malfunction during reading.
Avoid exposing the drive to sudden changes in temperature, as
condensation may form inside the unit. If the temperature
suddenly changes while the drive is on, wait at least one hour
before you turn off the power. If you operate the unit
immediately, it may malfunction while reading.
ꢀ
Avoid placing the drive in a location that is subject to high
humidity, extreme temperatures, mechanical vibration, or direct
sunlight.
Cleaning
Safety
ꢀ
ꢀ
Clean the panel and controls with a soft, dry cloth or a soft cloth
lightly moistened with a mild detergent solution. Never spray
cleaning fluids directly on the unit.
Avoid using any type of solvent, such as alcohol or benzene,
which may damage the finish.
If any object or liquid falls into the drive, immediately unplug the
computer and have it checked by an authorized Compaq service
provider.
F–2
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Routine Computer Care and Shipping Preparation
Shipping Preparation
Follow these suggestions when preparing to ship your computer:
1. Back up the hard drive files on PD discs, tape cartridges, or
diskettes. Be sure that the backup media is not exposed to
electrical or magnetic impulses while stored or in transit.
The hard drive locks automatically when the system power is
turned off.
✎
2. Remove and store any program diskettes from the diskette drives.
3. Insert a blank diskette into the diskette drive to protect the drive
while in transit. Do not use a diskette on which you have stored or
plan to store data.
4. Turn off the computer and external devices.
5. Disconnect the power cord from the electrical outlet, then from
the computer.
6. Disconnect the system components and external devices from
their power sources, then from the computer.
Ensure that all boards are seated properly and secured in the board
slots before shipping the computer.
✎
✎
7. Pack the system components and external devices in their original
packing boxes or similar packaging with sufficient packing
material to protect them.
For environmental nonoperating ranges, see Appendix A,
“Specifications,” in this guide.
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Routine Computer Care and Shipping Preparation
F–4
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B
battery
replacement C–1
activity light 1–2
installing 2–16
C
CD-ROM drive
busy indicator 1–2
eject button 1–2
installing 2–15
DVD-ROM drive 2–15
expansion card 2–9
Components
Keyboard 1–4
components
front panel 1–2
keyboard 1–4
connector 1–3
rear panel 1–3
computer care F–1
memory
installing 2–6
D
depth A–1, A–2
diskette drive
activity light 1–2
drive positions 2–12
DVD-ROM drive
installing 2–15
connector 1–3
E
electrostatic discharge E–1
expansion card, installing or removing 2–9
expansion slot cover, removing 2–9
button 1–2
cord connector 1–3
on light 1–2
F
Q
features 1–1
Quiet Drive B–7
front bezel, removing 2–5
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Index
R
removing
bezel blanks 2–5
stereo headphone jack 1–2
computer access panel 2–3
expansion card 2–9
front bezel 2–5
S
SCSI controller B–5
SCSI device
voltage select switch 1–3
W
guidelines B–3
weight A–1, A–2
width A–1, A–2
Windows Logo Key 1–6
SCSISelect utility B–6
security lock provisions D–1
serial connector 1–3
Index–2
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