Trademarks used in this text: Dell™, the DELL logo, and XPS™ are trademarks of Dell Inc.;
Microsoft®, Windows®, and the Windows start button logo are either trademarks or registered
trademarks of Microsoft Corporation in the United States and/or other countries; Bluetooth® is a
registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
is strictly forbidden.
Regulatory model: D03M series Regulatory Type: D03M004
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
WARNING: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as a
connector on your computer).
CAUTION: Only a certified service technician should perform repairs on your
computer. Damage due to servicing that is not authorized by Dell is not covered by
your warranty.
Inside View of Your Computer
3
Technical Overview9
1front bezel2primary hard drive
1
23
4
5
6
7
8
9
10
12
11
14
13
15
16
17
18
192021
22
23
24
25
27
26
3graphics card bracket (optional)4secondary hard drive
15 SATA drive connector (SATA 2)16 front panel USB connector
17 SATA drive connector (SATA 3)18 battery socket (BATTERY)
19 front panel USB connector
(F_USB2)
21 front panel audio connector
(F_AUDIO1)
23 PCI Express x1 card slot
(PCI-EX1_2)
25 PCI Express x16 card slot
(PCI-EX16_1)
27 chassis fan connector
(SYS_FAN 1)
4memory module connector
(DIMM3)
6memory module connector
(DIMM4)
8main power connector
(PWR1)
power button connector
(F_PANEL)
front panel USB connector
(F_USB1)
(F_USB3)
20 front panel USB connector
(F_USB4)
22 PCI Express x1 card slot
(PCI-EX1_3)
24 PCI Express x1 card slot
(PCI-EX1_1)
26 Mini-Card slot
(PCIE_MINICARD)
Technical Overview11
12Technical Overview
1
Before You Begin
This manual provides instructions for removing and installing the
components in your computer. Unless otherwise noted, each procedure
assumes that the following conditions exist:
•You have performed the steps in "Turning Off Your Computer" on page 13
and "Safety Instructions" on page 14.
•You have read the safety information that shipped with your computer
•A component can be replaced or—if purchased separately—installed by
performing the removal procedure in reverse order.
Technical Specifications
For information on technical specifications of your computer, see the Setup
Guide at support.dell.com/manuals.
Recommended Tools
The instructions in this document may require the following tools:
•Small flat-blade screwdriver
•Small Phillips screwdriver
•Plastic scribe
•BIOS executable update program available at
support.dell.com
.
Turning Off Your Computer
CAUTION: To avoid losing data, save and close all open files and exit all open
programs before you turn off your computer.
1
Save and close all open files and exit all open programs.
2
To shut down the operating system, click
Down
.
Start
and then click
Before You Begin13
Shut
3
Ensure that the computer is turned off. If your computer did not
automatically turn off when you shut down the operating system, press
and hold the power button until the computer turns off.
Safety Instructions
Use the following safety guidelines to help protect your computer from
potential damage and to help ensure your own personal safety.
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
CAUTION: Only a certified service technician should perform repairs on your
computer. Damage due to servicing that is not authorized by Dell is not covered by
your warranty.
CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab,
not on the cable itself. Some cables have connectors with locking tabs; if you are
disconnecting this type of cable, press in on the locking tabs before you
disconnect the cable. As you pull connectors apart, keep them evenly aligned to
avoid bending any connector pins. Also, before you connect a cable, ensure that
both connectors are correctly oriented and aligned.
CAUTION: To avoid damaging the computer, perform the following steps before
you begin working inside the computer.
1
Ensure that the work surface is flat and clean to prevent the computer
cover from being scratched.
2
Turn off your computer (see "Turning Off Your Computer" on page 13)
and all attached devices.
CAUTION: To disconnect a network cable, first unplug the cable from your
computer and then unplug the cable from the network device.
3
Disconnect all telephone or network cables from the computer.
4
Disconnect your computer and all attached devices from their electrical
outlets.
5
Disconnect all attached devices from your computer.
6
Press and eject any installed cards from the Media Card Reader.
7
Press and hold the power button to ground the system board.
14Before You Begin
CAUTION: Before touching anything inside your computer, ground yourself by
touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to
dissipate static electricity, which could harm internal components.
Before You Begin15
16Before You Begin
Computer Cover
WARNING: Before working inside your computer, read the safety information that
shipped with your computer. For additional safety best practices information, see
the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
WARNING: To guard against likelihood of electric shock, laceration by moving
fan blades, or other unexpected injuries, always unplug your computer from the
electrical outlet before removing the cover.
WARNING: Do not operate your computer with any cover(s) (including computer
CAUTION: Only a certified service technician should perform repairs on your
computer. Damage due to servicing that is not authorized by Dell is not covered by
your warranty.
CAUTION: Ensure that sufficient space exists to support the computer with the
cover removed—at least 30 cm (1 ft.) of desk top space.
Removing the Computer Cover
1
Follow the instructions in "Before You Begin" on page 13.
2
Lay the computer on its side with the computer cover facing up.
3
Remove the thumbscrew that secures the computer cover to the chassis,
using a screw driver, if necessary.
4
Release the computer cover by sliding it away from the front of the
computer.
5
Lift the cover away from the computer and set it aside in a secure location.
2
Computer Cover17
1thumbscrew2computer cover
2
1
Replacing the Computer Cover
1
Follow the instructions in "Before You Begin" on page 13.
2
Connect all the cables and fold the cables out of the way.
3
Ensure that no tools or extra parts are left inside the computer.
4
Align the tabs at the bottom of the computer cover with the slots located
along the edge of the chassis.
5
Press the computer cover down and slide it towards the front of the computer.
6
Replace the thumbscrew that secures the computer cover to the chassis.
18Computer Cover
1thumbscrew2slots
1
2
3
3computer cover
7
Place the computer in an upright position.
Computer Cover19
20Computer Cover
Memory Module(s)
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
WARNING: To guard against electrical shock, always unplug your computer from
the electrical outlet before removing the cover.
WARNING: Do not operate your computer with any cover(s) (including computer
CAUTION: Only a certified service technician should perform repairs on your
computer. Damage due to servicing that is not authorized by Dell is not covered by
your warranty.
Removing the Memory Module(s)
1
Follow the instructions in "Before You Begin" on page 13.
2
Remove the computer cover (see "Removing the Computer Cover" on
page 17).
3
Locate the memory module(s) on the system board (see "System Board
Components" on page 10).
4
Press out the securing clip at each end of the memory module connector.
3
Memory Module(s)21
1memory module connector2securing clip
1
2
5
Grasp the memory module and pull it upwards.
If the memory module is difficult to remove, gently ease the memory
module back and forth to remove it from the connector.
Replacing the Memory Module(s)
1
Follow the instructions in "Before You Begin" on page 13.
2
Press out the securing clip at each end of the memory module connector.
CAUTION: Only a certified service technician should perform repairs on your
computer. Damage due to servicing that is not authorized by Dell is not covered by
your warranty.
CAUTION: Do not install ECC or DDR3U memory modules.
CAUTION: If you remove the original memory module(s) from your computer
during a memory upgrade, keep them separate from any new module(s) that you
may have, even if you purchased the new module(s) from Dell. If possible, do not
pair an original memory module with a new memory module. Otherwise, your
computer may not start properly. The recommended memory configurations are:
matched memory module(s) installed in DIMM connectors 1 and 2 and another
matched memory module(s) installed in DIMM connectors 3 and 4.
22Memory Module(s)
1matched memory modules in
1
2
DIMM connectors 1 and 2 (white
securing clips)
3
Align the notch on the bottom of the memory module with the tab in the
connector.
2matched memory modules in
DIMM connectors 3 and 4 (black
securing clips)
Memory Module(s)23
1cutouts (2)2tab
4
3
1
2
3notch4memory module
CAUTION: To avoid damage to the memory module, press the memory module
straight down into the connector while you apply equal force to each end of the
memory module.
4
Insert the memory module into the connector until the memory module
snaps into position.
If you insert the memory module correctly, the securing clips snap into the
cutouts at each end of the memory module.
24Memory Module(s)
1cutouts (2)2securing clip (snapped in
2
1
position)
5
Replace the computer cover (see "Replacing the Computer Cover" on
page 18).
6
Connect your computer and devices to electrical outlets, and then turn
them on.
If a message appears stating that the memory size has changed, press
<F1> to continue.
7
Log on to your computer.
To verify that the memory is installed correctly, click Start Control PanelSystem.
Check the amount of memory (RAM) listed.
Memory Module(s)25
26Memory Module(s)
Front Bezel
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
WARNING: To guard against electrical shock, always unplug your computer from
the electrical outlet before removing the cover.
WARNING: Do not operate your computer with any cover(s) (including computer
covers, front bezels, filler brackets, front-panel inserts, etc.) removed.
CAUTION: Only a certified service technician should perform repairs on your
computer. Damage due to servicing that is not authorized by Dell is not covered by
your warranty.
Removing the Front Bezel
1
Follow the instructions in "Before You Begin" on page 13.
2
Remove the computer cover (see "Removing the Computer Cover" on
page 17).
3
Place the computer in an upright position.
4
Grasp and release the front bezel tabs sequentially, one at a time by moving
them outward from the front panel.
5
Rotate and pull the front bezel away from the front of the computer to
release the front bezel clamps from the front panel slots.
4
Front Bezel27
1front bezel2front panel slots (3)
3
4
2
1
5
3front bezel tabs (4)4front bezel clamps (3)
5front panel
6
Set aside the front bezel in a secure location.
28Front Bezel
Replacing the Front Bezel
2
1
3
4
5
1
Follow the instructions in "Before You Begin" on page 13.
2
Align and insert the front bezel clamps into the front panel slots.
3
Rotate the front bezel towards the computer until the front bezel tabs
snap into place.
Front Bezel29
1front bezel2front bezel tabs (4)
3front panel slots (3)4front bezel clamps (3)
5front panel
4
Replace the computer cover (see "Replacing the Computer Cover" on
page 18).
30Front Bezel
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