Dell OptiPlex 7440 User manual

Dell OptiPlex 7440 All-In-One
Owner's Manual
Regulatory Model: W11C
Regulatory Type: W11C001

Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright ©2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and
intellectual property laws. Dell™and the Dell logo are trademarks of Dell Inc. in the United States and/or other
jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.
2015 - 10
Rev. A00

Contents
1 Working on Your Computer................................................................................5
Before Working Inside Your Computer................................................................................................ 5
Recommended Tools............................................................................................................................6
Turning off your computer................................................................................................................... 6
After Working Inside Your Computer................................................................................................... 7
Important Information...........................................................................................................................7
2 Removing and installing components..............................................................8
Removing the stand.............................................................................................................................. 8
Installing the stand................................................................................................................................ 9
Removing the Cable Cover...................................................................................................................9
Installing the cable cover.................................................................................................................... 10
Removing the back cover................................................................................................................... 10
Installing the back cover......................................................................................................................11
Removing the speaker cover...............................................................................................................11
Installing the speaker cover................................................................................................................ 12
Removing the hard-drive assembly....................................................................................................13
Installing the hard-drive assembly......................................................................................................14
Removing the optical-drive assembly................................................................................................14
Installing the optical-drive assembly.................................................................................................. 15
Removing the system-board shield....................................................................................................15
Installing the system-board shield......................................................................................................16
Removing the heat sink ......................................................................................................................16
Installing the heat sink......................................................................................................................... 17
Removing the WLAN card................................................................................................................... 17
Installing the WLAN card.....................................................................................................................18
Removing the speakers.......................................................................................................................18
Installing the speakers......................................................................................................................... 19
Removing the converter board...........................................................................................................19
Installing the converter board............................................................................................................ 20
Removing the Power Supply Unit (PSU)............................................................................................. 21
Installing the Power Supply Unit (PSU)...............................................................................................22
Removing the VESA mount bracket................................................................................................... 23
Installing the VESA mount bracket..................................................................................................... 23
Removing the processor fan.............................................................................................................. 24
Installing the processor fan................................................................................................................ 24
Removing the memory module......................................................................................................... 24
Installing the memory module........................................................................................................... 25
3

Removing the intrusion switch...........................................................................................................25
Installing the intrusion switch.............................................................................................................26
Removing the power and On-Screen Display (OSD) Buttons board................................................26
Installing the power and OSD buttons board.................................................................................... 27
Removing the coin cell battery...........................................................................................................27
Installing the coin cell battery............................................................................................................ 28
Removing the processor.....................................................................................................................28
Installing the processor.......................................................................................................................28
Removing the system board...............................................................................................................29
System Board Layout.......................................................................................................................... 32
Installing the system board.................................................................................................................33
Removing the display assembly......................................................................................................... 34
Installing the display assembly............................................................................................................35
3 System Setup....................................................................................................... 37
Boot Sequence.................................................................................................................................... 37
Navigation Keys................................................................................................................................... 37
System Setup Options.........................................................................................................................38
Updating the BIOS ............................................................................................................................. 49
System and Setup Password...............................................................................................................49
Assigning a System Password and Setup Password.................................................................... 50
Deleting or Changing an Existing System and/or Setup Password.............................................50
4 Technical Specifications....................................................................................51
5 Contacting Dell...................................................................................................56
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1
Working on Your Computer
Before Working Inside Your Computer
Use the following safety guidelines to help protect your computer from potential damage and to help to
ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes
that the following conditions exist:
• 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.
WARNING: Disconnect all power sources before opening the computer cover or panels. After you
finish working inside the computer, replace all covers, panels, and screws before connecting to
the power source.
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: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
CAUTION: 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 the back of the
computer.
CAUTION: Handle components and cards with care. Do not touch the components or contacts
on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a
processor by its edges, not by its pins.
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.
NOTE: The color of your computer and certain components may appear differently than shown in
this document.
To avoid damaging your computer, perform the following steps before you begin working inside the
computer.
1. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.
2. Turn off your computer (see Turning Off Your Computer).
5

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 network cables from the computer.
4. Disconnect your computer and all attached devices from their electrical outlets.
5. Press and hold the power button while the computer is unplugged to ground the system board.
6. Remove the cover.
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.
Recommended Tools
The procedures in this document may require the following tools:
• Small flat-blade screwdriver
• Phillips screwdriver
• Small plastic scribe
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. Turning off your computer:
• In Windows 10 (using a touch enabled device or mouse):
1. Click or tap .
2. Click or tap and then click or touch Shut down.
• In Windows 8 (using a touch enabled device):
1. Swipe in from the right edge of the screen, opening the Charms menu and select Settings.
2. Tap and then tap Shut down
• In Windows 8 (using a mouse):
1. Point to upper-right corner of the screen and click Settings.
2. Click and then click Shut down.
• In Windows 7:
1. Click Start.
2. Click Shut Down.
or
1. Click Start.
6

2. Click the arrow in the lower-right corner of the Start menu and then click Log off.
2. Ensure that the computer and all attached devices are turned off. If your computer and attached
devices did not automatically turn off when you shut down your operating system, press and hold
the power button for about 6 seconds to turn them off.
After Working Inside Your Computer
After you complete any replacement procedure, ensure that you connect any external devices, cards, and
cables before turning on your computer.
1. Replace the cover.
CAUTION: To connect a network cable, first plug the cable into the network device and then
plug it into the computer.
2. Connect any telephone or network cables to your computer.
3. Connect your computer and all attached devices to their electrical outlets.
4. Turn on your computer.
5. If required, verify that the computer works correctly by running Dell Diagnostics.
Important Information
NOTE: Avoid using the touchscreen in dusty, hot, or humid environments.
NOTE: Sudden change in temperature may cause condensation on the inner surface of the glass
screen, which will disappear after a short time and does not affect normal usage.
7

2
Removing and installing components
This section provides detailed information on how to remove or install the components from your
computer.
Removing the stand
1. Follow the procedures in Before Working Inside Your Computer Before Working Inside Your
Computer.
2. Place the computer on a flat surface with the display side facing downwards.
3. Perform the following steps as shown in the illustration:
a. Press the tab on the cover to release the stand [1].
b. Lift the stand upwards [2].
4. Slide the stand and lift it away from the back cover.
8

Installing the stand
1. Align the stand and slide it on the back of the computer.
2. Press the cover attached to the stand, until it snaps in.
3. Follow the procedure in After Working Inside Your Computer.
Removing the Cable Cover
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the stand.
3. Perform the following steps as shown in the illustration:
a. Remove the screw that secures the cable cover [1].
b. Press the release latches that secure the cable cover to the computer [2].
c. Lift the cable cover and remove it away from the computer [3].
9

Installing the cable cover
1. Align the cable cover to its position on the computer and press down, until it snaps in.
2. Tighten the screw to secure the cable cover to the computer.
3. Install the stand.
4. Follow the procedures in After Working Inside Your Computer.
Removing the back cover
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the:
a. stand
b. cable cover
3. Pry the edges of the back cover to release it from the computer.
4. Slide the back cover and lift it from the computer.
10

Installing the back cover
1. Align the back cover and press it until it snaps in.
2. Install the:
a. cable cover
b. stand
3. Follow the procedure in After Working Inside Your Computer.
Removing the speaker cover
1. Follow the procedure in Before Working Inside Your Computer.
2. Remove the:
a. stand
b. cable cover
c. back cover
3. Perform the following steps as shown in the illustration:
a. Remove the screws that secure the speaker cover to the computer [1].
b. Slide the speaker cover to release it from the computer [2].
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4. Slide and remove the speaker cover from the computer.
Installing the speaker cover
1. Align the speaker cover to its position on the back of the computer.
2. Tighten the screws to secure the speaker cover to the computer.
3. Install the:
a. back cover
b. cable cover
c. stand
4. Follow the procedure in After Working Inside Your Computer.
12

Removing the hard-drive assembly
1. Follow the procedure in Before Working Inside Your Computer.
2. Remove the:
a. stand
b. back cover
3. Perform the following steps as shown in the illustration:
a. Press the hard-drive bracket to release the hard-drive assembly [1].
b. Slide the hard-drive assembly upwards to remove it from the computer [2].
4. Perform the following steps as shown in the illustration:
a. Pry the edges of the bracket to release the hard drive [1].
b. Slide the hard drive and lift it away from the bracket [2].
13

Installing the hard-drive assembly
1. Insert the hard drive into the hard-drive bracket.
2. Place the hard drive on the hard-drive cage, until it snaps in.
3. Install:
a. back cover
b. stand
4. Follow the procedure in After Working Inside Your Computer.
Removing the optical-drive assembly
1. Follow the procedure in Before Working Inside Your Computer.
2. Remove the:
a. stand
b. back cover
3. Perform the following steps as shown in the illustration:
a. Press the securing tab to release the optical drive [1].
b. Push the back side of the optical drive [2].
c. Slide the optical-drive assembly outward to remove it away from the computer [3].
4. Perform the following steps as shown in the illustration:
a. Remove the screws that secure the optical-drive bracket [1].
b. Remove the bracket away from the optical drive [2].
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Installing the optical-drive assembly
1. Tighten the screws to secure the bracket to the optical drive.
2. Insert the optical-drive assembly into the drive slot, until it snaps in.
3. Install the:
a. back cover
b. stand
4. Follow the procedure in After Working Inside Your Computer.
Removing the system-board shield
1. Follow the procedure in Before Working Inside Your Computer.
2. Remove the:
a. stand
b. back cover
3. Perform the following steps as shown in the illustration:
a. Press the securing tab to release the system-board shield from the slots on the computer [1].
b. Slide the system-board shield away from the computer [2].
c. Lift the system-board shield from the computer [3].
15

Installing the system-board shield
1. Align and slide the system-board shield and slide it until it snaps in.
2. Install the:
a. back cover
b. stand
3. Follow the procedure in After Working Inside Your Computer.
Removing the heat sink
1. Follow the procedure in Before Working Inside Your Computer.
2. Remove the:
a. stand
b. back cover
c. system-board shield
3. Perform the following steps as shown in the illustration:
a. Remove the screws that secure the heat sink module to the chassis [1, 2].
b. Lift up the heat sink assembly and remove it from the computer [3].
16

Installing the heat sink
1. Align and place the heat sink on the computer.
2. Tighten the screws to secure the heat sink to the computer.
3. Install the:
a. system-board shield
b. back cover
c. stand
4. Follow the procedure in After Working Inside Your Computer.
Removing the WLAN card
1. Follow the procedure in Before Working Inside Your Computer.
2. Remove the:
a. stand
b. back cover
c. system-board shield
3. Perform the following steps as shown in the illustration:
a. Disconnect the antenna cables from the connectors on the WLAN card [1].
b. Remove the screw that secures the WLAN card to the system board [2].
c. Hold the WLAN card and disconnect it from the connector on the system board [3].
17

Installing the WLAN card
1. Align the WLAN card to the connector on the system board.
2. Tighten the screw to secure the WLAN card to the system board.
3. Connect the antenna cables to the connectors on the WLAN card.
4. Install the:
a. system-board shield
b. back cover
c. stand
5. Follow the procedure in After Working Inside Your Computer.
Removing the speakers
1. Follow the procedure in Before Working Inside Your Computer.
2. Remove the:
a. stand
b. back cover
c. cable cover
d. speaker cover
e. system-board shield
3. Perform the following steps as shown in the illustration:
a. Disconnect the speaker cable from the connector on the system board [1].
b. Unthread the speaker cables from the clips [2].
4. Perform the following steps as shown in the illustration:
a. Remove the screws that secure the speaker to the chassis [1].
b. Lift the speakers and remove it from the chassis [2].
18

Installing the speakers
1. Align the speaker module on the slot in the chassis.
2. Tighten the screws to secure the speaker to the chassis.
3. Thread the speaker cables via the clips.
4. Connect the speaker cable to the connector on the system board.
5. Install:
a. system-board shield
b. speaker cover
c. back cover
d. cable cover
e. stand
6. Follow the procedure in system-board shield.
Removing the converter board
1. Follow the procedure in Before Working Inside Your Computer.
2. Remove the:
a. stand
b. back cover
c. cable cover
d. speaker cover
e. system-board shield
3. Perform the following steps as shown in the illustration:
a. Disconnect the convertor-board cable from the converter board [1, 2]
b. Disconnect the display-backlight cable from the converter board [3].
19

4. Perform the following steps as shown in the illustration:
a. Remove the screws that secure the converter board to the chassis [1].
b. Lift the converter board away from the chassis [2].
Installing the converter board
1. Place the convertor board in its slot in the chassis.
2. Tighten the screws to secure the converter board to the chassis.
3. Connect the converter-board cable and display-backlight cable to the connectors on the converter
board.
4. Install the:
a. system-board shield
b. speaker cover
c. cable cover
d. back cover
e. stand
5. Follow the procedure in After Working Inside Your Computer.
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