As you use your computer, observe the following safe-handling guidelines. 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.
Your computer is equipped with either an auto-sensing voltage selector or a manual voltage-selection switch. Computers with an auto-sensing voltage selector do not have a voltage-selection switch on the back panel and automatically detect the correct operating voltage. Computers with a voltage-selection switch on the back panel must be manually set to operate at the correct operating voltage. To help avoid damaging a computer with a manual voltage-selection switch, 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
NOTE: The voltage selection switch must be set to the 115V position
even though the AC supply in Japan is 100 V.
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 open 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.
Lay the computer on its side as shown in the following illustration.
Press the release latch while lifting the power supply. Rotate the power supply out of the computer while keeping the drive power cables clear.
When you rotate the power supply back into the computer, gently lift the and hold the drive cables out of the way. Rotate the power supply into position until its release latch clicks. Lay the drive power cables along the top of the latch.
While facing the front of the computer, press in the front-panel release
tab at the top of the computer.
Swing the front panel away from the computer, disengage the two
retaining hooks at the bottom of the front panel, and carefully pull it
away from the computer.
To replace the front panel, fit the two front-panel retaining hooks into
their corresponding slots on the computer frame. Rotate the front
panel toward the computer until the front panel latches into position.
From the back of the front panel, press the release tab to the side.
Rotate the insert toward you, and remove it from the front panel.
If you permanently remove a drive from the drive cage, replace the front-panel insert by inserting its two tabs into the slot in the front panel and rotating the insert forward until it snaps into place.
Remove the metal drive bay plate covering the bay.
Using a screwdriver, pop out the metal plate from the left or right side of the computer.
Remove the extra rails from the front of the computer frame.
Install the rail marked "L" on the left side of the drive and the rail
marked "R" on the right side of the drive.
Slide the drive assembly into the drive bay.
NOTICE: Dell does not recommend routing cables over cards because the
cables can restrict airflow, cause cooling problems, and interfere with
removing and replacing the computer cover. If you must route cables over
cards, be extremely cautious when removing and replacing the computer cover.
Install the card as close as you can to the drive cage.
Connect a power cable to the drive.
NOTICE: When you attach the extra connector to the new drive in the
following step, match the colored strip on the cable with pin 1 on the drive.
If you didn't install a controller card in step 11, remove the tape from
the wide cable connector and reattach the connector to the original
drive. Then locate the extra connector on the cable and attach it to the
new drive. Be sure that the wide cable is properly connected to the
IDE connector on the system board.
If you installed a controller card in step 11, attach the other end of the interface cable to the controller card rather than to the system board.
Make sure that no cable connections were loosened during the
procedure. Arrange cables so that they will not interfere with replacing
the power supply and computer cover.
Make sure that no cable connections were loosened during the
procedure. Arrange cables so that they will not interfere with replacing
the power supply and computer cover.
Make sure that no cable connections were loosened during the
procedure. Arrange cables so that they will not interfere with replacing
the power supply and computer cover.
Make sure that no cable connections were loosened during the
procedure. Arrange cables so that they will not interfere with replacing
the power supply and computer cover.
Unscrew and remove the filler bracket for the card slot you want to use.
Align the cutout on the bottom of the card with the crossbar in the
system board connector. Gently rock the card into the connector until
it is fully seated.
Make sure that the card is fully seated and that its bracket is within the card slot.
Secure the bracket on the end of the card with the screw you removed
in step 6.
Connect any cables required for the card as described in the card
documentation.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
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, look under "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 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 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, making sure 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.
HINT: The system
memory value reported by
the operating system is 1
or 2 MB less than the
memory installed because
that memory is reserved
for video functions.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
A coin-cell battery maintains computer configuration, date, and time information. The battery can last several years.
If you have to repeatedly reset time and date information after turning on the computer, replace the battery.
CAUTION: A new battery can explode if it is incorrectly installed. Replace the 3-V CR2032 battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions (see "Battery Disposal" in the Owner's Manual).
NOTICE: To avoid damage to the system board while you pry the battery
loose, be sure to insert the plastic screwdriver between the battery and the
socket (not the system board).
Locate the battery socket BATTERY on the system board and pry the
battery out of its socket with your fingers or with a plastic screwdriver.
Insert the battery into the socket with the side labeled "+" facing up.
Release the metal clip that secures the heat sink and fan assembly to
the microprocessor socket. Then remove the heat sink and fan
assembly from the microprocessor chip.
Your microprocessor socket is a zero insertion force (ZIF) socket with a
lever handle that secures the chip in (or releases it from) the socket. To
remove the chip, pull the microprocessor-socket release lever out to
unlock it and then straight up until the chip is released.
NOTICE: Be careful not to bend any of the pins when you remove the
microprocessor chip from its socket. Bending the pins can permanently
damage the microprocessor chip.
Remove the chip from the socket. Leave the release lever extended so
that the socket is ready for the new microprocessor.
NOTICE: Ground yourself by touching an unpainted metal surface on the
back of the computer.
NOTICE: Be careful not to bend any of the pins when you unpack the
microprocessor. Bending the pins can permanently damage the microprocessor.
Unpack the new microprocessor.
If any of the pins on the chip appear to be bent, obtain technical assistance.
Align the pin-1 corner of the microprocessor chip with the pin-1 corner
of the microprocessor socket, as shown in the following illustration.
HINT: You must identify
the pin-1 corner to
correctly position the
chip.
The pin-1 corner of the microprocessor is the beveled corner. The pin-1 corner of the socket is marked with a white triangle on the system board.
Install the microprocessor chip in the socket (as shown in the
preceding illustration):
NOTICE: You must position the microprocessor chip correctly in the socket to
avoid permanent damage to the chip and the computer when you turn on the
system.
If the release lever on the microprocessor socket is not all the way
out, move it to that position.
With the pin-1 corners of the chip and socket aligned, align the
pins on the chip with the holes in the socket.
Set the chip lightly in the socket and make sure that all pins are
headed into the correct holes. Because your system uses a ZIF
microprocessor socket, you do not need to use force, which could
bend the pins if the chip is misaligned. When the chip is
positioned correctly, press it with minimal pressure to seat the
microprocessor in the socket. Be careful not to bend the pins.
When the chip is fully seated in the socket, pivot the
microprocessor-socket release lever back toward the socket until it
snaps into place, securing the chip.
NOTICE: Ground yourself by touching an unpainted metal surface on the
back of the computer.
Unpack the heat sink and fan assembly included in your upgrade kit.
Peel the release liner from the adhesive tape that is attached to the
bottom of the heat sink and fan assembly.
NOTICE: When you install the heat sink and fan assembly, make sure that the
heat sink is flat against the surface of the processor while you are installing the
clip. If the heat sink becomes tilted when you install the clip, excess heat can
damage the processor.
Replace the heat sink and fan assembly:
Place the heat sink and fan assembly on top of the microprocessor
chip.
Orient the securing clip and hook the shorter side of the clip over
the tab on the top edge of the microprocessor socket.
Press down on the top of the fan to snap the clip over the tab on
the bottom edge of the microprocessor socket.
Plug your computer and devices into 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.
As the computer boots, it detects the presence of the new
microprocessor and automatically changes the system configuration
information in the system setup program.
Enter the system setup program, and confirm that the Processor Type
and Processor Speed options in the Main screen correctly identify the
newly installed microprocessor.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
If possible, enter the system setup program and either print the system
setup screens by pressing the <Print Screen> key or write down the
screen information before you turn off the computer because you will
have to restore the configuration information after the system board is
replaced.
Push the system-board retaining clip until it disengages.
HINT: You may need to
slide the board toward the
front of the computer to
clear the hooked standoffs
before you can lift the
board from the computer.
Slide the system board forward until is no longer held by the standoffs
that secure the system board to the computer frame.
Carefully lift the system board out of the I/O gasket and remove the
board from the computer. The I/O gasket is on the back of the
computer where all of the input and output ports are located.
Install the replacement board.
When you install the replacement system board, angle the back of the board downward and carefully align the connectors on the back edge of the board with the cutouts in the I/O gasket. When properly aligned, the board connectors slide into the I/O gasket as you lower the board into position in the computer and reseat it on the standoffs. Lock the board in place with the system-board retaining clip.
Check all cable connections, especially those that might have come
loose during your work. Fold cables and unused connectors out of the
way so that they do not catch on the computer cover or interfere with
airflow inside the computer.
Check to see that no tools or extra parts (including screws) are left
inside the computer.
Place the computer upright with the front facing you. Align the
computer cover so its bottom hooks fit in the computer's curved
hinge.
Lift up the cover, making sure to keep the bottom hooks aligned with
the curves in the computer.
Gently squeeze the right and left sides of the computer together until
the cover clicks into position.
NOTICE: To connect a network cable, first plug the cable in to the network
wall jack and then plug it in to the computer.
Connect your computer and devices to their electrical outlets, and
turn them on.
