Use the following safety guidelines to protect yourself and your computer. For comfort and efficiency, observe the ergonomic guidelines provided in "Sitting Comfortably at Your Computer" in the Tell Me How help file.
CAUTION: Do not operate your computer with any cover(s)
(including the computer cover, filler brackets, front-panel inserts,
and so on) removed.
To help avoid damaging your computer, be sure that the voltage
selection switch is set to match the AC power available at your
location:
115 V/60 Hz in most of North and South America and some Far Eastern countries such as South Korea and Taiwan
100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan
230 V/50 Hz in most of Europe, the Middle East, and the Far East
Also be sure that your monitor and attached devices are electrically rated to operate with the AC power available in your location.
To help prevent damage to your computer when disconnecting a
network cable from your computer, first unplug the cable from the
computer network connector and then from the network wall jack.
When reconnecting a network cable to your computer, first plug the
network cable into the network wall jack and then into the computer
network connector.
To help avoid possible damage to the system board, wait 5 seconds
after turning off the computer before disconnecting or connecting a
non-USB device.
To help prevent electric shock, plug the computer and device power
cables into properly grounded power sources. These cables are
equipped with 3-prong plugs to help ensure proper grounding. Do not
use adapter plugs or remove the grounding prong from a cable. If you
must use an extension cable, use a 3-wire cable with properly grounded
plugs.
To help protect your computer from sudden, transient increases and
decreases in electrical power, use a surge suppressor, line conditioner,
or uninterruptable power supply.
Be sure that nothing rests on your computer cables and that the cables
are not located where they can be stepped on or tripped over.
Do not spill food or liquids on your computer. If the computer gets
wet, contact Dell.
Do not push any objects into the openings of your computer. Doing so
can cause fire or electric shock by shorting out interior components.
Keep your computer away from radiators and heat sources. Also, do not
block cooling vents. Avoid placing loose papers underneath your
computer; do not place your computer in a closed-in wall unit or on a
bed, sofa, or rug.
Before you remove the computer cover, perform the following steps in the sequence indicated.
NOTICE: Do not attempt to service the computer yourself, except as
explained in this guide and elsewhere in Dell documentation. Always follow
installation and service instructions closely.
Turn off your computer and all devices.
Ground yourself by touching an unpainted metal surface at the back of
the computer before touching anything inside your computer.
While you work, periodically touch an unpainted metal surface on the computer to dissipate any static electricity that might harm internal components.
Disconnect any devices connected to the computer, including the
monitor, from their electrical outlets to reduce the potential for
personal injury or shock. Also, disconnect any telephone or
telecommunication lines from the computer.
Disconnect the power cable from your computer, and then press the
power button to ground the system board.
In addition, take note of these safety guidelines when appropriate:
When you disconnect a cable, pull on its connector, not on the cable
itself. As you pull connectors apart, keep them evenly aligned to avoid
bending any pins. Also, before you connect a cable, make sure that
both connectors are correctly oriented and aligned.
Handle components and cards with care. Don't touch the components
on a card. Hold a card by its edges or by its metal bracket.
CAUTION: There is a danger of a new battery exploding if it is
incorrectly installed. Replace the battery only with the same or
equivalent type recommended by the manufacturer. Discard used
batteries according to the manufacturer instructions.
To prevent static damage, discharge static electricity from your body before you touch anything inside your computer and periodically while you work inside the computer. You can do so by touching an unpainted metal surface on the back of the computer.
You can also take the following steps to prevent static damage:
Do not remove items from their antistatic packing material until you
are ready to install them in your computer. Just before unwrapping the
antistatic packaging, be sure to discharge static electricity from your
body.
When transporting a sensitive component, first place it in an antistatic
container or packaging.
To prevent damage to your computer, the front door is designed to "break away" if it is lifted up too far. If the front door breaks away, you might need to reattach both the front door and the hinge arms.
If necessary, disconnect any cables connected to the card.
To raise the securing lever, press the tab until it is free from the latch
and then lift the lever.
To remove the card, grasp the card by the top corners and lift it out.
If the card is difficult to remove, gently ease the card back and forth to remove it from the connector.
HINT: Installing filler
brackets over empty card-
slot openings is necessary
to maintain Federal
Communications
Commission (FCC)
certification of the
computer. The brackets
also keep dust and dirt out
of your computer.
If you are not replacing the card, install a filler bracket in the empty
card-slot opening.
CAUTION: Before you begin any of the procedures in this section,
see "Safety Instructions."
You can increase your computer memory by installing memory modules on the system board. For information on the type of memory supported by your computer,
see "Memory" in "Technical Specifications."
HINT: Memory
purchased from Dell is
covered under your
computer warranty.
Press out the securing clip at each end of the memory module
connector.
Grasp the module and pull up.
If the module is difficult to remove, gently ease the module back and forth to remove it from the connector.
To insert a module, press out the securing clip at each end of the
memory module connector.
Align the notches on the bottom of the module with the crossbars in
the connector.
NOTICE: To avoid breaking the memory module, do not press near the middle
of the module.
Insert the module straight down into the connector, ensuring that it
fits into the vertical guides at each end of the connector. Press firmly
on the ends of the module until it snaps into place.
If you insert the module correctly, the securing clips snap into the cutouts at each end of the module.
Press the card clip lever on the side of the AGP card to release the card
from the slot connector, and remove the card.
To replace the AGP card, gently press it down into the slot connector
until it clicks into place. Press the card clip lever while inserting the
card into the slot connector.
HINT: Two sets of rails
are attached to the inside
of the computer cover.
Use the two longer rails
on 5.25-inch drives. Use
the shorter rails for 3.5-
inch drives. Rails for a
second hard drive are
attached inside the hard-
drive bay.
Remove the two green plastic rails from the inside of the hard-drive
bay.
These rails are not attached to the inside of the hard-drive cage with screws. To remove the rails, gently pull the rails up and out of the bay.
Attach the rails to the hard drive using the two screws attached to the
rails.
Ensure that the rail tabs are positioned at the back of the hard drive.
Gently slide the hard drive into the bay until you hear a click.
Connect a power cable to the drive.
NOTICE: Match the colored strip on the cable with pin 1 on the drive.
Locate the extra connector on the drive cable that is attached to your
first hard drive, and attach the connector to the second hard drive.
HINT: Your computer
uses cable-select drive
cables. This means that
the device connected to
the end connector of the
drive cable is the master
device and the device
connected to the middle
connector is the slave
device. Be sure the jumper
setting on the new device
is set for "cable select"
(see the documentation
that came with the drive
for information).
CAUTION: Before you begin any of the procedures in this section,
see "Safety Instructions."
HINT: Drives sold by Dell
come with their own
operating software and
documentation. After you
install a drive, refer to the
documentation that came
with the drive for
instructions on installing
and using the drive
software.
NOTICE: To avoid possibly damaging the drive by electrostatic discharge
(ESD), ground yourself by periodically touching an unpainted metal surface on
the back of the computer.
Your computer includes a floppy drive and a CD or DVD drive. You can add other devices, such as a Zip drive, a CD-RW drive, or a tape drive.
Turn off any attached devices and disconnect them from their
electrical outlets.
NOTICE: To disconnect a network cable, first unplug the cable from your
computer and then unplug it from the network wall jack.
Disconnect the power cable from your computer, and then press the
power button to ground the system board.
Unpack the drive and prepare it for installation.
See the drive documentation to ensure that the drive is set up for your computer.
HINT: Two sets of rails
are attached to the inside
of the computer cover.
Use the two longer rails
on 5.25-inch drives. Use
the shorter rails on 3.5-
inch drives. Rails for a
second hard drive are
attached inside the hard-
drive bay.
Remove the two longer, green plastic rails from the inside of the
computer cover.
These rails are not attached to the computer cover with screws. To remove the rails, gently ease the rails up and down.
Attach the rails to the drive using the screws supplied with the drive.
Ensure that the rail tabs are positioned at the back of the drive.
To remove the drive-bay cover panel, carefully press the panel out from
the inside of the computer.
Gently slide the drive into the bay until you hear a click.
Connect a power cable to the drive.
See the drive documentation for instructions on connecting a drive
cable to the drive and system board.
HINT: Your computer
uses cable-select drive
cables. This means that
the device connected to
the end connector of the
drive cable is the master
device and the device
connected to the middle
connector is the slave
device. Be sure the jumper
setting on the new device
is set for "cable select"
(see the documentation
that came with the drive
for information).
Connect your computer and devices to their electrical outlets, and
turn them on.
NOTICE: To connect a network cable, first plug the cable in to the network
wall jack and then plug it in to the computer.
See the drive documentation for instructions on installing any software
required for drive operation.
To remove the drive-bay cover panel, carefully press the panel out from
the inside of the computer.
To remove the drive-bay cover panel insert, press the four tabs and pull
the insert away from the panel.
HINT: Two sets of rails
are attached to the inside
of the computer cover.
Use the two longer rails
on 5.25-inch drives. Use
the shorter rails for 3.5-
inch drives. Rails for a
second hard drive are
attached inside the hard-
drive cage.
Remove the two shorter, green plastic rails from the inside of the
computer cover.
These rails are not attached to the computer cover with screws. To remove the rails, firmly pull the rails from the drive cage.
Attach the rails to the drive using the screws supplied with the drive.
Ensure that the rail tabs are positioned at the back of the drive.
Gently slide the drive into the bay until you hear a click.
Carefully replace the drive bay cover.
You do not need to replace the cover insert.
Connect a power cable to the drive.
See the drive documentation for instructions on connecting a drive
cable to the drive.
HINT: Your computer
uses cable-select drive
cables. This means that
the device connected to
the end connector of the
drive cable is the master
device and the device
connected to the middle
connector is the slave
device. Be sure the jumper
setting on the new device
is set for "cable select"
(see the documentation
that came with the drive
for information).
Connect your computer and devices to their electrical outlets, and
turn them on.
NOTICE: To connect a network cable, first plug the cable in to the network
wall jack and then plug it in to the computer.
Install any drivers required for the drive as described in the drive
documentation.
Remove the fan shroud assembly from over the microprocessor and
heat sink assembly.
Remove the heat sink:
Pull down on the toggle clip lever until you can unhook the ends of
the clip from the tabs on each side of the ZIF socket.
Remove the clip from the socket.
Lift the heat sink away from the microprocessor.
Remove the microprocessor package from the socket.
NOTICE: Be careful not to bend any of the pins when you remove the
microprocessor package from the ZIF socket. Bending the package pins can
permanently damage the microprocessor.
The ZIF socket has a lever-type handle that secures and releases the microprocessor package from the ZIF socket.
Pull the socket release lever straight up until the microprocessor
package releases.
Remove the microprocessor package from the socket.
Leave the release lever extended so that the socket is ready for the new microprocessor package.
NOTICE: If you are replacing the microprocessor, do not reuse the old heat
sink. Doing so can cause the microprocessor to overheat because of an
inadequate amount of thermal compound between the heat sink assembly and
the microprocessor package.
NOTICE: You must position the microprocessor package correctly in the ZIF
socket to avoid permanent damage to the microprocessor and the computer
when you turn on the system.
Install the microprocessor package in the ZIF socket:
If the release lever on the ZIF socket is not all the way out, move it
to that position now.
Align pin 1 (the beveled corner) of the microprocessor package
and pin 1 of the ZIF socket.
Set the microprocessor package lightly in the socket, making sure
that all the pins are headed into the correct holes.
Because the system uses a ZIF socket, there is no need to use force (which could bend the pins if the microprocessor package is misaligned).
When the microprocessor package is positioned correctly, press it
with minimal pressure to fully seat it in the ZIF socket.
When the microprocessor package is fully seated, pivot the release
lever back toward the system board until it snaps into place,
securing the microprocessor package.
Replace the heat sink assembly:
If you are installing a new heat sink assembly, remove the plastic
cover that is attached to the bottom of the new heat sink assembly.
Place the heat sink assembly on top of the microprocessor
package.
Orient the metal retaining clip as shown in the first illustration in
this procedure, and hook the ends of the clip over the tabs on the
top edge of the ZIF socket.
Pull up on the toggle clip lever until it is vertical.
Replace the fan shroud assembly over the microprocessor and heat
sink assembly.
If you are installing a microprocessor replacement kit from Dell, return the original heat sink assembly and microprocessor package to Dell in the same package in which your replacement kit was sent. Your microprocessor replacement kit should include a replacement microprocessor heat sink and one replacement securing clip.
Disconnect the cooling fan power cable from the CPU FAN connector
on the system board.
Pull down on the lower rim of the shroud to release the fan.
Orient the new fan so that its power cable is at the bottom.
Insert the top of the fan into the upper rim of the shroud, and then
press the bottom of the fan into the lower rim of the shroud until it
snaps into place.
Reconnect the fan power cable from the CPU FAN connector on the
system board.
Replace the fan shroud assembly over the microprocessor and heat
sink assembly.
Disconnect the control panel cable from the control panel connector.
Disconnect the I/O cable from the connector on the system board.
Note the routing of the control panel cable as you remove it from the
computer so that you can replace it correctly.
Remove all cables that are connected to the front I/O panel.
From inside the computer cover, remove the mounting screw that
secures the front I/O panel to the computer.
Disconnect the AC power cable from the back of the power supply.
Disconnect the DC power cables from the system board and the
drives.
Note the routing of the DC power cables underneath the tabs in the
computer frame as you remove them from the system board and
drives. It is important to route these cables properly when you replace
them to prevent them from being pinched or crimped.
Remove the two screws that secure the power supply to the back of the
computer.
Press the "PUSH" button located on the floor of the computer.
Slide the power supply toward the front of the system approximately 1
inch.
NOTICE: The system board and the metal tray are attached and are removed
as one piece.
Remove or move any components that restrict access to the system
board.
Disconnect all cables from the system board.
Before you remove the existing system board, visually compare the replacement system board to the existing system board to make sure that you have the correct part.
Pull up on the tab and slide the system board toward the front of the
computer; lift it up and away.
Place the system board that you just removed next to the replacement
system board.
Transfer components from the existing system board to the
replacement system board:
Remove the memory modules and install them on the
replacement board.
CAUTION: The microprocessor package and heat sink assembly
can get hot. To avoid burns, be sure that the package and
assembly have had sufficient time to cool before you touch them.
Remove the fan/heat sink assembly and microprocessor package
from the existing system board and transfer it to the replacement
system board.
Configure the settings of the replacement system board.
Set the jumper on the replacement system board so it is identical to the one on the existing board.
NOTICE: Some components and connectors on the replacement system board
may be in different locations than the corresponding connectors on the existing
system board.
Orient the replacement board by aligning the notches on the bottom
to the tabs on the computer frame floor.
Slide the board toward the back of the computer until it clicks into
place.
Replace any components and cables that you removed from the system
board.
Reconnect all cables to their connectors at the back of the computer,
closing the computer cover, and reconnect the computer and devices
to their power sources and turn them on.
