Dell Latitude 7280 Owner's Manual
Working on your computer
Removing and installing components
System specifications
System Setup
Troubleshooting
- Enhanced Pre-Boot System Assessment (ePSA) diagnostics
  - Running the ePSA diagnostics
Contacting Dell

DELL 7280 User Manual

Displayed below is the user manual for 7280 by DELL which is a product in the Notebooks category. This manual has pages.

Related Manuals

DELL 7280 Manual

Dell Latitude 7280

Owner's Manual

Regulatory Model: P28S

Regulatory Type: P28S001

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better use of your product.

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.

trademarks may be trademarks of their respective owners.

2017 - 04

Rev. A02

Contents

1 Working on your computer............................................................................................................................. 6

Turning o your computer — Windows 10.....................................................................................................................6

Turning o your computer — Windows 8...................................................................................................................... 6

Turning o your computer — Windows 7...................................................................................................................... 6

Before working inside your computer..............................................................................................................................6

Safety instructions............................................................................................................................................................. 7

After working inside your computer.................................................................................................................................7

2 Removing and installing components............................................................................................................. 9

Screw size list..................................................................................................................................................................... 9

Recommended tools.......................................................................................................................................................... 9

Micro Secure Digital (SD) Card.......................................................................................................................................10

Removing the Micro Secure Digital (SD) Card....................................................................................................... 10

Installing the Micro Secure Digital (SD) Card..........................................................................................................10

Subscriber Identity Module (SIM) Card.........................................................................................................................10

Removing the micro SIM card or the micro SIM card tray....................................................................................10

Base cover.........................................................................................................................................................................10

Removing the base cover..........................................................................................................................................10

Installing the base cover............................................................................................................................................. 11

Battery................................................................................................................................................................................ 11

Removing the battery................................................................................................................................................. 11

Installing battery..........................................................................................................................................................12

PCIe Solid State Drive (SSD).......................................................................................................................................... 12

Removing the NVMe SSD card................................................................................................................................ 12

Installing the NVMe SSD........................................................................................................................................... 13

WLAN card........................................................................................................................................................................ 13

Removing the WLAN card.........................................................................................................................................13

Installing the WLAN card........................................................................................................................................... 14

WWAN card.......................................................................................................................................................................15

Removing the WWAN card....................................................................................................................................... 15

Installing the WWAN card..........................................................................................................................................15

Power board......................................................................................................................................................................15

Removing the power board.......................................................................................................................................15

Installing the power board......................................................................................................................................... 16

Speaker.............................................................................................................................................................................. 16

Removing the speaker module..................................................................................................................................16

Installing the speaker module....................................................................................................................................18

Fingerprint Board.............................................................................................................................................................. 18

Removing the ngerprint reader board....................................................................................................................18

Installing the ngerprint reader board...................................................................................................................... 19

LED Board..........................................................................................................................................................................19

Removing the LED board..........................................................................................................................................20

Installing the LED board............................................................................................................................................ 20

Contents 3

Smart Card Cage.............................................................................................................................................................. 21

Removing the smart card cage.................................................................................................................................21

Installing the smart card cage.................................................................................................................................. 22

Heat Sink...........................................................................................................................................................................22

Removing heat sink assembly...................................................................................................................................22

Installing heat sink assembly.....................................................................................................................................23

Display Assembly..............................................................................................................................................................23

Removing the display assembly................................................................................................................................23

Installing the display assembly..................................................................................................................................26

Removing dummy SIM card tray ...................................................................................................................................26

System Board................................................................................................................................................................... 27

Removing system board............................................................................................................................................ 27

Installing system board..............................................................................................................................................30

Real time clock (RTC)..................................................................................................................................................... 30

Removing the real time clock (RTC)........................................................................................................................ 31

Installing real time clock (RTC)................................................................................................................................. 31

Keyboard........................................................................................................................................................................... 32

Removing keyboard assembly.................................................................................................................................. 32

Removing keyboard from the keyboard tray.......................................................................................................... 33

Installing keyboard to the keyboard tray................................................................................................................. 34

Installing keyboard assembly.....................................................................................................................................34

Display Panel.....................................................................................................................................................................35

Removing the display panel...................................................................................................................................... 35

Installing the display panel......................................................................................................................................... 37

G-sensor board.................................................................................................................................................................37

Removing the G-sensor board................................................................................................................................. 37

Installing the G-sensor board .................................................................................................................................. 38

Camera.............................................................................................................................................................................. 38

Removing the camera............................................................................................................................................... 38

Installing the camera..................................................................................................................................................39

Palmrest............................................................................................................................................................................ 39

Replacing palm rest .................................................................................................................................................. 40

3 System specications.................................................................................................................................. 42

Supported operating systems.........................................................................................................................................42

Processor specications................................................................................................................................................. 43

System specications......................................................................................................................................................43

Memory specications.................................................................................................................................................... 43

Storage specications..................................................................................................................................................... 43

Video specications......................................................................................................................................................... 43

Audio specications......................................................................................................................................................... 44

Battery specications......................................................................................................................................................44

AC adapter specications............................................................................................................................................... 45

Docking options................................................................................................................................................................45

Port and connector specications.................................................................................................................................45

Communication specications........................................................................................................................................46

Camera specications..................................................................................................................................................... 46

4Contents

Touchpad specications..................................................................................................................................................46

Display specications.......................................................................................................................................................46

Physical specications.....................................................................................................................................................48

Environmental specications.......................................................................................................................................... 48

4 System Setup.............................................................................................................................................. 49

Boot menu........................................................................................................................................................................ 49

Navigation keys................................................................................................................................................................50

System setup options......................................................................................................................................................50

General screen options....................................................................................................................................................50

System Conguration screen options............................................................................................................................ 51

Video screen options....................................................................................................................................................... 53

Security screen options...................................................................................................................................................53

Secure Boot screen options........................................................................................................................................... 55

Intel software guard extensions screen options...........................................................................................................56

Performance screen options.......................................................................................................................................... 56

Power management screen options.............................................................................................................................. 57

POST behavior screen options.......................................................................................................................................58

Manageability................................................................................................................................................................... 59

Virtualization support screen options............................................................................................................................59

Wireless screen options...................................................................................................................................................59

Maintenance screen options.......................................................................................................................................... 60

System logs screen options............................................................................................................................................60

Updating the BIOS in Windows ..................................................................................................................................... 61

System and setup password........................................................................................................................................... 61

Assigning a system password and setup password................................................................................................61

Deleting or changing an existing system and/or setup password....................................................................... 62

5 Troubleshooting........................................................................................................................................... 63

Enhanced Pre-Boot System Assessment (ePSA) diagnostics...................................................................................63

Running the ePSA diagnostics................................................................................................................................. 63

6 Contacting Dell............................................................................................................................................ 64

Contents 5

Working on your computer

Turning o your computer — Windows 10

CAUTION: To avoid losing data, save and close all open les and exit all open programs before you turn o your

computer.

1 Click or tap .

2 Click or tap and then click or tap Shut down.

NOTE: Ensure that the computer and all attached devices are turned o. If your computer and attached devices did not

automatically turn o when you shut down your operating system, press and hold the power button for about 6 seconds

to turn them o.

Turning o your computer — Windows 8

CAUTION: To avoid losing data, save and close all open les and exit all open programs before you turn o your

computer.

1 Turning o your computer:

• 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.

2 Ensure that the computer and all attached devices are turned o. If your computer and attached devices did not automatically turn o

when you shut down your operating system, press and hold the power button for about 6 seconds to turn them o.

Turning o your computer — Windows 7

CAUTION: To avoid losing data, save and close all open les and exit all open programs before you turn o your

computer.

1 Click Start.

2 Click Shut Down.

NOTE: Ensure that the computer and all attached devices are turned o. If your computer and attached devices did not

automatically turn o when you shut down your operating system, press and hold the power button for about 6 seconds

to turn them o.

Before working inside your computer

1 Ensure that your work surface is at and clean to prevent the computer cover from being scratched.

2 Turn o your computer.

6 Working on your computer

3 If the computer is connected to a docking device (docked), undock it.

4 Disconnect all network cables from the computer (if available).

CAUTION: If your computer has an RJ45 port, disconnect the network cable by rst unplugging the cable from your

computer.

5 Disconnect your computer and all attached devices from their electrical outlets.

6 Open the display.

7 Press and hold the power button for few seconds, to ground the system board.

CAUTION: To guard against electrical shock unplug your computer from the electrical outlet before performing Step #

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching

an unpainted metal surface at the same time as touching a connector on the back of the computer.

8 Remove any installed ExpressCards or Smart Cards from the appropriate slots.

Safety instructions

Use the following safety guidelines to protect your computer from potential damage and 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 nish 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 certied 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 that is grounded to ground yourself before you touch the computer to perform any disassembly tasks.

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 dierently than shown in this document.

After working inside your computer

After you complete any replacement procedure, ensure that you connect external devices, cards, and cables before turning on your

computer.

CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries

designed for other Dell computers.

1 Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard.

2 Connect any telephone or network cables to your computer.

Working on your computer 7

CAUTION: To connect a network cable, rst plug the cable into the network device and then plug it into the

computer.

3 Connect your computer and all attached devices to their electrical outlets.

4 Turn on your computer.

8 Working on your computer

Removing and installing components

This section provides detailed information on how to remove or install the components from your computer.

Screw size list

Table 1. Latitude 7280 - screw size list

Component M2.5x 6.0 M2.0 x 5.0 M2.5 x 4.0 M2.0x3.0 M2.0 x 2.5 M2.0 x 2.0

Back cover 8 (captive screws)

Battery—3-cell 1

Battery—4-cell 2

SSD module 1

Heat sink module 4

System fan 2

Speaker 4

WWAN card 1

WLAN card 1

Power connector port 1

ESD bracket 1

EDP bracket 2

Touchpad buttons 2

Fingerprint reader 1

LED board 1

Smart card reader cage 2

Display hinge 6

Display panel 2

Antenna—Innity displays 2

Keyboard support plate 19

Keyboard 5

System board 8

Memory module bracket 1

Recommended tools

The procedures in this document require the following tools:

• Small at blade screwdriver

Removing and installing components 9

• Phillips # 1 screwdriver

• Small plastic scribe

Micro Secure Digital (SD) Card

Removing the Micro Secure Digital (SD) Card

1 Follow the procedure in Before working inside your computer.

2 Press in on the Micro SD card to release it from the computer.

3 Slide the Micro SD card out of the computer.

Installing the Micro Secure Digital (SD) Card

1 Slide the Micro SD into the slot until it clicks into place.

2 Follow the procedures in After working inside your computer.

Subscriber Identity Module (SIM) Card

Removing the micro SIM card or the micro SIM card tray

CAUTION: Removing the micro SIM card when the computer is on may cause data loss or damage the card. Ensure that your

computer is turned o or the network connections are disabled.

NOTE: Micro SIM card tray is available only for systems that are shipped with WWAN card.

1 Insert a paperclip or a micro SIM card removal tool into the pinhole on the micro SIM card tray.

2 Use a scribe to pull the micro SIM card tray.

3 If a micro SIM card is available, remove the micro SIM card from the micro SIM card tray.

Base cover

Removing the base cover

1 Follow the procedure in Before working inside your computer.

2 Loosen the M2.5 x 5.0 captive screws that secure the base cover to the computer.

10 Removing and installing components

3 Use a plastic scribe to pry the base cover starting from the hinges at the top edge of the base cover and lift it from the computer.

NOTE: The recesses are located near the hinges at the rear side of the computer.

Installing the base cover

1 Align the base cover tabs to the slots on the edges of the computer.

2 Press the edges of the cover until it clicks into place.

3 Tighten the M2.5 x 5.0 captive screws to secure the base cover to the computer.

4 Follow the procedure in After working inside your computer.

Battery

Removing the battery

1 Follow the procedure in Before working inside your computer.

2 Remove:

aMicroSD card

Removing and installing components 11

bBase cover

3 To remove the battery:

a Lift the ribbon, and disconnect the battery cable from the connector on the system board [1].

b Remove the M2.0 x 4 L screws that secure the battery to the computer [2].

NOTE: The image displayed is for reference only. Some components location and screw may vary.

c Lift the battery from the computer [3].

Installing battery

1 Insert the battery into the slot on the computer.

2 Connect the battery cable to the connector on the system board.

3 Replace the M 2 x 4L screws to secure the battery to the computer.

4 Install the:

abase cover

bSD card

5 Follow the procedure in After working inside your computer.

PCIe Solid State Drive (SSD)

Removing the NVMe SSD card

1 Follow the procedure in Before working inside your computer.

2 Remove:

aMicroSD card

bbase cover

cbattery

12 Removing and installing components

NOTE: You need not remove the battery, instead you can disconnect the battery cable from the system

board.

3 To remove the NVMe SSD card:

a Remove the M2.0 x 3.0 screws that secure SSD thermal bracket and lift the thermal bracket [1].

b Slide the thermal bracket from the SSD card [2].

c Slide and remove the SSD card from the slot on the computer [3].

Installing the NVMe SSD

1 Insert the NVMe SSD card into the connector.

2 Install the thermal bracket over the SSD card.

3 Replace the M2.0 x 3.0 screws to secure the SSD thermal bracket.

4 Install the:

abattery

NOTE: If you have not removed the battery, you must connect the battery cable to the system board.

bbase cover

cMicroSD card

5 Follow the procedure in After working inside your computer.

WLAN card

Removing the WLAN card

1 Follow the procedure in Before working inside your computer.

2 Remove:

aMicroSD card

Removing and installing components 13

bbase cover

cbattery

NOTE: You need not remove battery, instead you can disconnect the battery cable from the system board.

3 To remove the WLAN card:

a Remove the M2.0 x 3.0 screw that secures the metal bracket to the WLAN card [1].

b Lift the metal bracket [2].

c Disconnect the WLAN cables from the connectors on the WLAN card [3].

d Remove the WLAN card from the computer [4].

Installing the WLAN card

1 Insert the WLAN card into the connector on the system board.

2 Connect the WLAN cables to the connectors on the WLAN card.

3 Place the metal bracket and replace the M2.0 x 3.0 screw to secure WLAN card to the computer.

4 Install the:

abattery

NOTE: If you have not removed the battery then you must connect the battery cable to the system board.

bbase cover

cMicroSD card

5 Follow the procedure in After working inside your computer.

14 Removing and installing components

WWAN card

Removing the WWAN card

1 Follow the procedure in Before working inside your computer.

2 Remove:

aMicroSD card

bbase cover

cbattery

NOTE: You need not remove the battery, instead you can disconnect the battery cable from the system

board.

3 To remove the WWAN card:

a Remove the M2.0 x 3.0 screw that secures the metal bracket to the WWAN card .

b Lift the metal bracket that secures the WWAN card .

c Disconnect the WWAN cables from the connectors on the WWAN card

d Lift the WWAN card from the computer.

Installing the WWAN card

1 Insert the WWAN card into the connector on the system board.

2 Connect the WWAN cables to the connectors on the WWAN card.

3 Place the metal bracket and replace the M2.0 x 3.0 screw to secure the WLAN card to the computer.

4 Install the:

abattery

NOTE: If you have not removed the battery then you must connect the battery cable to the system board.

bbase cover

cMicroSD card

5 Follow the procedure in After working inside your computer.

NOTE: The IMEI number can also be found on the WWAN card.

Power board

Removing the power board

1 Follow the procedure in Before working inside your computer.

2 Remove:

aMicroSD card

bSIM card tray

NOTE: SIM Card tray is available only if your computer is shipped with a WWAN card.

cbase cover

dbattery

3 To remove the power board:

a Peel the coin cell battery axed to the computer [1].

b Disconnect the power cable from the system board [2].

Removing and installing components 15

c Remove the M2.0x3.0 screws to release the power board [3].

d Lift the power board from the computer [4].

Installing the power board

1 Insert the power board into the slot.

2 Replace the M2.0x3.0 screws to secure the power board to the computer.

3 Connect the power board cable to the connector on the system board.

4 Ax the coin cell battery in the slot on the computer.

5 Install the:

abattery

bbase cover

cMicroSD card

6 Follow the procedure in After working inside your computer.

Speaker

Removing the speaker module

1 Follow the procedure in Before working inside your computer.

2 Remove:

aMicroSD card

bbase cover

cbattery

dpower board

3 To disconnect the cables:

16 Removing and installing components

a Disconnect the and fold back the smart card cable [1].

b Disconnect and fold back the LED board cable [2].

4 To release the speaker module:

a Disconnect the speaker cable from the connector on the system board [1].

b Un route the speaker cable by removing the tapes that secure the cable [2].

5 To remove the speaker module:

a Un route the speaker cable from the routing clips near the palm rest [1].

Removing and installing components 17

b Lift the speaker module from the computer.

NOTE: You can use a plastic scribe to lift the speaker module from the computer.

Installing the speaker module

1 Place the speaker module into the slots on the computer.

2 Route the speaker cable through the routing channel and secure it with tapes.

3 Connect the speaker cable to the connector on the system board.

4 Connect the LED cable to the connector on the palm rest.

5 Install the:

apower board

bbattery

cbase cover

dMicro SD

6 Follow the procedure in After working inside your computer.

Fingerprint Board

Removing the ngerprint reader board

1 Follow the procedure in Before working inside your computer.

2 Remove:

aMicro SD

bbase cover

cbattery

18 Removing and installing components

3 To remove the ngerprint reader board:

a Lift the coin cell battery axed to the speaker cables [1].

b Disconnect the nger print reader cable from the ngerprint reader board and the USH board [2].

c Remove the M2 x 3 screw that secures the ngerprint reader bracket [3].

d Lift the ngerprint reader bracket from the ngerprint reader board [3].

e Lift the ngerprint reader board from the slot on the computer.

NOTE: Fingerprint reader board is axed and you may need a plastic scribe to lift the ngerprint reader

board.

Installing the ngerprint reader board

1 Install the ngerprint reader board into the slot.

2 Place the ngerprint reader bracket on the board.

3 Replace the M2 x 3 screw to secure the bracket to the board.

4 Connect the ngerprint reader cable to the ngerprint reader board and the USH board.

5 Ax the coin cell battery on the speaker cable

6 Install the:

abattery

bbase cover

cMicro SD

7 Follow the procedure in After working inside your computer.

LED Board

Removing and installing components 19

Removing the LED board

1 Follow the procedure in Before working inside your computer.

2 Remove:

aMicro SD

bbase cover

cbattery

3 To remove the LED board:

a Disconnect the LED board cable from the LED board [1].

b Remove the tape that secures the LED board to the touchpad panel [2].

c Remove the M2 x 3 screws that secure the LED board [3].

d Lift the LED board from the computer [4].

Installing the LED board

1 Install the LED board into the slot.

2 Replace the M2 x 3 screws to secure the LED board.

3 Ax the tape to secure the LED board.

4 Connect the LED board cable to the LED board.

5 Install the:

abattery

bbase cover

cSD card

6 Follow the procedure in After working inside your computer.

20 Removing and installing components

Smart Card Cage

Removing the smart card cage

NOTE: Always remove the smart card from the smart card reader.

1 Follow the procedure in Before working inside your computer.

2 Remove:

aMicro SD

bbase cover

cbattery

dSSD card

3 To disconnect the cables:

a Disconnect the smart card cable [1] and fold it away from the smart card cage.

b Disconnect the LED board cable [2] and fold it away from the smart card cage.

c Peel the SSD thermal pad from the SSD slot 3].

NOTE: You may need to apply force to peel o the SSD thermal

pad.

4 To remove the smart card cage:

a Remove the M2.0 x 1.7 screws that secure the smart card cage to the computer [1].

b Lift the smart card cage from the computer [2].

Removing and installing components 21

Installing the smart card cage

1 Slide the smart card cage into the slot to align with the screw holders on the computer.

2 Replace the M2.0 x 1.7 screws to secure the smart card cage to the computer.

3 Ax the thermal pad in the SSD slot.

4 Ax the LED board cable and connect it to the LED board on the computer.

5 Ax the smart card cable and connect it to the USH board on the computer .

6 Install the:

aSSD card

bbattery

cbase cover

dMicro SD

7 Follow the procedure in After working inside your computer.

Heat Sink

Removing heat sink assembly

1 Follow the procedure in Before working inside your computer.

2 Remove the:

aMicro SD

bbase cover

cbattery

3 To remove the heat sink assembly:

a Disconnect the fan cable from the system board [1].

22 Removing and installing components

b Remove the M2.0 x 3.0 screws that secure the fan to the system board.

c Remove the M2.0 x 3.0 screws that secure the heat sink to the system board [2].

d Lift the heat sink assembly from the system board.

Installing heat sink assembly

1 Align the heat sink assembly with screw holders on the system board.

2 Replace the M2.0 x 3.0 screws to secure the heat sink to the system board.

NOTE: Tighten the screws on the system board in the order of the callout numbers [1, 2, 3, 4] as indicated on the heat

sink.

3 Replace the M2.0 x 3.0 screws to secure the fan to the system board.

4 Connect the fan cable to the connector on the system board.

5 Install the:

abattery

bbase cover

6 Follow the procedure in After working inside your computer.

Display Assembly

Removing the display assembly

1 Follow the procedure in Before working inside your computer.

2 Remove the:

aMicro SD

bbase cover

Removing and installing components 23

cbattery

dWLAN card

eWWAN card

3 Peel the tapes that secure the antenna cables and un route the cables from the routing clips.

4 Disconnect the :

a IR camera and touchscreen cable [1].

b Remove the M 2 x 1.7L screws that secure the eDP bracket and lift it away from the computer [2].

c Disconnect the eDP cable from the system board [3].

d Disconnect th G-sensor and eDP cables [4].

24 Removing and installing components

5 Lift the base of the computer away from the display assembly.

6 To remove the display assembly:

a Place the base of the computer with the display assembly at 270 degrees (laptop) or 90 degrees (tablet).

NOTE: If the system is used as a laptop, then display assembly should be at 270 degrees and for a fully

closed tablet conguration, the display should be at 90 degrees.

b Remove the M2.5 x 4.0 screws that secure the display hinge brackets [1].

Removing and installing components 25

c Lift the display assembly away from the computer [2].

Installing the display assembly

1 Place the base of the computer on a at surface.

2 Install the display assembly by aligning it with the display hinge screw holders.

3 Replace the M2.5 x 4.0 screws to secure the display assembly.

4 Close the display assembly and ip the computer.

5 Connect the cables:

a G-sensor and eDP cable

b Place the eDP bracket on the eDP cable and replace the M 2 x 1.7L on the bracket.

c IR camera and touch screen cables

6 Route the antenna cables through the routing clips

7 Ax the tapes to secure the antenna cables to the system board.

8 Install the:

aWWAN card

bWLAN card

cbattery

dbase cover

eMicro SD

9 Follow the procedure in After working inside your computer.

Removing dummy SIM card tray

For models shipped with a WWAN card, the SIM card tray must rst be removed from the system before removing the system board. To

remove the SIM card tray from the system follow the steps outlined in the disassembly section.

26 Removing and installing components

NOTE: For models shipped with a wireless card only, a dummy SIM card tray must rst be removed from the system before

removing the system board. The following are the steps for removing the dummy SIM card tray:

1 Push the release latch on the SIM card slot inwards.

2 Slide the dummy SIM card tray out of the system.

System Board

Removing system board

1 Follow the procedure in Before working inside your computer.

2 Remove the:

aMicro SD

bSIM card tray

If your system is shipped with a WWAN card, it will have a dummy SIM card tray.

cdummy SIM tray

dbase cover

ebattery

fSSD card

gWLAN card

hWWAN card

iHeatsink assembly

3 Disconnect the following cables from the system board .

a touchpad cable

b USH cable

c LED board cable

Removing and installing components 27

4 Disconnect the eDP cable:

NOTE: To disconnect the eDP cable, remove the M 2 x 1.7L screws that secure the eDP bracket and lift it away from the

computer, Disconnect the eDP cable from the system board.

5 To release the cables:

a Flip the coin cell battery to reveal the speaker cable [1].

b Disconnect the speaker cable from the system board [2].

c Disconnect the power board cable from the system board [3].

28 Removing and installing components

6 Peel the tapes that secure antenna cables and un route the cables from the routing clips.

7 To remove the system board:

a Remove the M2.0 x 4L screws on the USB Type-C bracket [1].

b Lift the USB Type-C bracket from the Type-C module [2].

c Remove the M2.0 x 3.0 screws that secure the system board to the computer [3].

d Lift the system board away from the computer[4].

Removing and installing components 29

Installing system board

1 Align the system board with the screw holders on the computer.

2 Replace the M2.0 x 3.0 screws to secure the system board to the computer.

3 Place the USB Type-C bracket on the Type-C module.

4 Replace the M 2.0 x 4L screws to secure the USB Type-C bracket to the Type-C module.

5 Route the antenna cable through the routing clips and ax the tapes to secure the antenna cables.

6 Connect the power board and the speaker cable to the system board.

7 Ax the coin cell battery on the speaker cable.

8 Connect the USH board, Touchpad board and LED board cables to the system board.

1NOTE: If your computer has a WWAN card, then SIM card tray installation is a requirement.

9 Install the:

aheatsink module

bWWAN card

cWLAN card

dSSD card

ebattery

fbase cover

gSIM card tray

hMicro SD

10 Follow the procedure in After working inside your computer.

Real time clock (RTC)

30 Removing and installing components

Removing the real time clock (RTC)

1 Follow the procedure in Before working inside your computer.

2 Remove the:

amircro SD card

bSIM card tray

NOTE: SIM Card tray is available only if your computer is shipped with a WWAN card.

cbase cover

dbattery

eSSD card

fWLAN card

gWWAN card

hheat sink assembly

isystem board

NOTE: RTC is located on the system board and hence system board removal is a requirement.

3 Disconnect the RTC cable to release it from the system board.

Installing real time clock (RTC)

1 Connect the coin cell battery cable to the system board.

2 Install:

asystem board

bheat sink module

cWWAN card

dWLAN card

eSSD card

fbattery

gbase cover

hMicro SD

i SIM card tray

Removing and installing components 31

3 Follow the procedure in After working inside your computer.

RTC is located on the system board and hence system board must be installed after the installation of the RTC.

Keyboard

Removing keyboard assembly

NOTE: The keyboard and the keyboard tray together are called the keyboard assembly.

1 Follow the procedure in Before working inside your computer.

2 Remove the:

aMicro SD

bSIM card tray

NOTE: SIM Card tray is available only if your computer is shipped with a WWAN card.

cbase cover

dbattery

eSSD card

fWLAN card

gWWAN card

hHeatsink assembly

isystem board

3 Peel and disconnect the cables:

a LED board cable [1]

b SSD thermal pad [2]

c keyboard and backlit keyboard cables [3]

4 To remove the keyboard:

a Remove the M2.0 x 3.0 screws that secure the keyboard to the chassis [1].

32 Removing and installing components

b Lift the keyboard from the chassis [2].

Removing keyboard from the keyboard tray

1 Follow the procedure in Before working inside your computer.

2 Remove the keyboard

3 Remove the keyboard from the keyboard support tray:

a Remove the M2.0 x 2.0 screws that secure the keyboard to the keyboard assembly [1].

b Lift the keyboard away from the keyboard support tray [2].

Removing and installing components 33

Installing keyboard to the keyboard tray

1 Align the keyboard with the screw holders on the keyboard tray.

2 Tighten the M2.0 x 2.0 screws to secure the keyboard to the keyboard tray.

3 Install the keyboard.

Installing keyboard assembly

NOTE: The keyboard and the keyboard tray together are called the keyboard assembly.

1 Align the keyboard assembly with the screw holders on the chassis.

2 Replace the M2.0 x 3.0 screws that secure the keyboard to the chassis.

3 Ax and connect the keyboard and the backlit keyboard cables to the keyboard.

4 Ax the LED board cable on the keyboard.

5 Ax the SSD thermal pad on the SSD module.

NOTE: If your computer has a WWAN card, then SIM card tray installation is a requirement.

6 Install the:

asystem baord

bheatsink module

cWWAN card

dWLAN card

eSSD card

fbattery

gbase cover

hMicro SD

i SIM card tray

7 Follow the procedure in After working inside your computer.

34 Removing and installing components

Display Panel

Removing the display panel

1 Follow the procedure in Before working inside your computer.

2 Remove the:

aMicro SD

bbase cover

cbattery

dWLAN card

eWWAN card

fdisplay assembly

3 To release the display panel:

a Pry the display panel from the display hinges [1].

b Push the display hinges from the recesses at the bottom edge [2].

c Work your way around the edges to release the display panel [3,4].

4 Flip the display panel.

Removing and installing components 35

5 Disconnect the cables:

a G-sensor cable [1].

b Peel the tape that secures the display cable [2].

c Lift the metal tab that secures the display cable [3].

d Disconnect the display cable from the display panel.

36 Removing and installing components

Installing the display panel

1 Place the display panel near the left over portion of the display cover .

2 Connect the display cable from the display cover to the display panel.

3 Ax the tape to secure the display cable on the display panel.

4 Connect the G-sensor cable to the connector on the display panel.

5 Flip the display panel on the display cover.

6 Press the edges to secure the display panel to the display assembly.

7 Install the:

aWLAN card

bWWAN card

cbattery

dbase cover

eMicro SD

8 Follow the procedure in After working inside your computer.

G-sensor board

Removing the G-sensor board

1 Follow the procedure in Before working inside your computer.

2 Remove the:

aMicro SD

bbase cover

cbattery

dWLAN card

eWWAN card

fdisplay assembly

gdisplay panel

3 To remove the G-sensor board:

a Remove the M2.0 x 3.0 screw that secures the G-sensor board to the display cover [1].

b Flip the G-sensor board to reveal the display cable [2].

c Disconnect the display cable from the G-sensor board [3].

Removing and installing components 37

Installing the G-sensor board

1 Place the G-sensor board on the display cover.

2 Connect the display cable to the G-sensor board.

3 Flip the G-sensor board to align with the screw holder on the display cover.

4 Replace the M2.0 x 3.0 screw to secure the G-sensor board to the display cover.

5 Install the:

a Idisplay panel

bWLAN card

cWWAN card

dbattery

ebase cover

fMicro SD

6 Follow the procedure in After working inside your computer.

Camera

Removing the camera

1 Follow the procedure in Before working inside your computer.

2 Remove the:

aMicro SD

bbase cover

cbattery

dWLAN card

38 Removing and installing components

eWWAN card

fdisplay assembly

gdisplay panel

3 To remove the camera:

a Disconnect the camera cable from the camera module [1].

b Peel the camera module to lift it away from the display cover [2].

Installing the camera

1 Insert the camera module in the slot on the display cover.

2 Ax the camera module to secure the module to the display cover.

3 Connect the camera cable to the connector on the camera module.

4 Install the:

adisplay panel

bdisplay assembly

cWLAN card

dWWAN card

ebattery

fbase cover

gMicro SD

5 Follow the procedure in After working inside your computer.

Palmrest

Removing and installing components 39

Replacing palm rest

1 Follow the procedure in Before working inside your computer.

2 Remove the:

abase cover

bbattery

cSSD module

dWLAN card

eWWAN card

fpower board

gheat sink assembly

hRTC

iLED board

jspeaker

ksmart card cage

ldisplay assembly

msystem board

nkeyboard

The component you are left with is the palmrest.

3 Replace the palmrest.

4 Install the:

akeyboard assembly

bsystem board

cdisplay assembly

dsmart card cage

espeaker

fLED board

gRTC

40 Removing and installing components

hheat sink

ipower board

jWLAN card

kWWAN card

lPCIe SSD

mbattery

nbase cover

5 Follow the procedure in After working inside your computer.

Removing and installing components 41

System specications

NOTE: Oerings may vary by region. The following specications are only those required by law to ship with your computer. For

more information about the conguration of your computer, go to Help and Support in your Windows operating system and

select the option to view information about your computer.

Topics:

• Supported operating systems

• Processor specications

• System specications

• Memory specications

• Storage specications

• Video specications

• Audio specications

• Battery specications

• AC adapter specications

• Docking options

• Port and connector specications

• Communication specications

• Camera specications

• Touchpad specications

• Display specications

• Physical specications

• Environmental specications

Supported operating systems

The topic lists the operating systems supported for Latitude 7280 .

Table 2. Supported operating systems

Supported operating systems Description

Windows 10 • Microsoft Windows 10 Pro 64-bit

• Microsoft Windows 10 Home 64-bit

• Microsoft® Windows 8.1 Professional 64 bit, (available through

downgrade rights from Windows 10 Pro License only through

Dell Conguration Services) (available with Intel 6th Gen Core I

only)

• Microsoft Windows 7 Professional 32/64 bit, (available through

downgrade rights from Windows 10 Pro License) (Available with

Intel 6th Gen Core I only)

Other • Ubuntu 16.04 LTS SP1 64-bit

• NeoKylin v6.0 64-bit

42 System specications

Processor specications

Feature Specication

Types • 7th generation Intel Core i3 / i5 / i7 series

• 6th generation Intel Core i5 / i7 series

System specications

Feature Specication

Chipset Integrated in the processor

DRAM bus width 64-bit

Flash EPROM SPI 128 Mbits

PCIe bus 100 MHz

External Bus

Frequency

DMI 3.0—8GT/s

Memory specications

Feature Specication

Memory connector One SoDIMM slot

Memory capacity 4 GB and 16 GB

Memory type DDR4 SDRAM—2133 MHz

Minimum memory 4 GB

Maximum memory 16 GB

Storage specications

This laptop supports one M.2 SATA SSD or M.2 PCIe NVMe SSD.

The options are:

• Up to 512 GB SATA SSD

• Up to 1 TB PCIe NVMe SSD

• Up to 512 GB NVMe SED SSD

Video specications

Feature Specication

Type Integrated on system board

UMA controller • Intel Integrated HD Graphics 620

• Intel Integrated HD Graphics 520 (available with Intel 6th Gen Core I only)

System specications 43

Feature Specication

External display

support • On system – eDP (internal display), HDMI

• Optional Type-C port – VGA, DisplayPort 1.2, DVI and Thunderbolt

NOTE: Supports one VGA, DisplayPort, HDMI through the Docking station.

Audio specications

Feature Specication

Types Four-channel high-denition audio

Controller Realtek ALC3246

Stereo conversion 24-bit—analog-to-digital and digital-to-analog

Internal interface High-denition audio

External interface Microphone-in, stereo headphones, and headset combo connector

Speakers Two

Internal speaker

amplier

2 W (RMS) per channel

Volume controls Hot keys

Battery specications

Feature Specication

Type • 3-cell Lithium Prismatic battery with ExpressCharge

• 4-cell Lithium Prismatic battery with ExpressCharge

42 WHr (3–cell):

Length 200.5 mm (7.89 inches)

Width 95.9 mm (3.78 inches)

Height 5.7 mm (0.22 inch)

Weight 185.0 g (0.41 lb)

Voltage 11.4 VDC

60 WHr (4–cell):

Length 238 mm (9.37 inches)

Width 95.9 mm (3.78 inch)

Height 5.7 mm (0.22 inch)

Weight 270 g (0.6 lb)

Voltage 7.6 VDC

Life span 300 discharge per charge cycles

Temperature range

44 System specications

Feature Specication

Operating • Charge: 0°C to 50°C (32°F to 158°F)

• Discharge: 0°C to 70°C (32°F to 122°F)

Non-operating - 20°C to 65°C (- 4°F to 149°F)

Coin cell battery 3 V CR2032 lithium coin cell

AC adapter specications

Feature Specication

Type 65 W or 90 W

Input voltage 100 V AC to 240 V AC

Input current—

maximum

1.7 A / 2.5 A

Input frequency 50 Hz to 60 Hz

Output current 3.34 A and 4.62 A

Rated output

voltage

19.5 V DC

Weight 230 g (65 W) and 320 g (90 W)

Dimensions 22 x 66 x 106 mm (65 W) and 22 x 66 x 130 (90 W)

Temperature range

—Operating

0°C to 40°C (32°F to 104°F)

Temperature range

—Non-Operating

–40°C to 70°C (–40°F to 158°F)

Docking options

NOTE: Docking stations are sold separately.

Options • Dell Dock WD15

• Dell Dock Stand DS1000

• Dell Thunderbolt Dock TB16

Port and connector specications

Feature Specication

Audio Microphone-in, stereo headphones, and headset combo connector

Video HDMI 1.4

Network adapter One RJ-45 connector

USB • One USB 3.0

• One DisplayPort over USB Type-C (optional Thunderbolt 3)

System specications 45

Feature Specication

Memory card reader one Micro SD 4.0

Micro Subscriber

Identity Module

(uSIM) card

One

Docking port None

NOTE: Cable docking is available .

Express Card None

AC adapter One

Smart card reader One (optional)

Communication specications

Features Specication

Network adapter 10/100/1000 Mb/s Ethernet (RJ-45)

Wireless Internal wireless local area network (WLAN), wireless wide area network (WWAN), WiGig

Camera specications

NOTE: Systems with FHD display are also shipped with an optional IR camera that supports Windows hello feature.

Feature Specication

Type HD xed focus

Sensor type CMOS sensor technology

Imaging rate Up to 30 frames per second

Video Resolution 1280 x 720 pixels (0.92 MP)

Touchpad specications

Feature Specication

Active Area:

X-axis 99.50 mm

Y-axis 53.0 mm

X/Y position

resolution

X: 1048cpi; Y:984cpi

Multi-touch Congurable single nger and multi-nger gestures

Display specications

Feature Specication

HD anti-glare

Luminance 200 nits

46 System specications

Feature Specication

Height 155.52 mm (6.12 inches)

Width 276.62 mm (10.89 inches)

Diagonal 317.5 mm (12.5 inches)

Maximum resolution 1366 x 768

Refresh rate 60 Hz/48 Hz

Maximum viewing

angles—horizontal

+/-40°

Maximum viewing

angles—vertical

+10°/-30°

Pixel pitch 0.2025 x 0.2025 mm

FHD anti-glare:

Luminance 300 nits

Height 155.52 mm (6.12 inches)

Width 276.62 mm (10.89 inches)

Diagonal 317.5 mm (12.5 inches)

Maximum resolution 1920 x 1080

Refresh rate 60 Hz

Maximum viewing

angles—horizontal

+/-80°

Maximum viewing

angles—vertical

+/-80°

Pixel pitch 0.144 x 0.144 mm

Feature Specication

FHD anti-smudge

Luminance 300 nits

Height 155.52 mm (6.12 inches)

Width 276.62 mm (10.89 inches)

Diagonal 305.3 mm (12.02 inches)

Maximum resolution 1920 x 1080

Refresh rate 60 Hz

Maximum viewing

angles—horizontal

+/-80°

Maximum viewing

angles—vertical

+/-80°

Pixel pitch 0.1 44 x 0.144

System specications 47

Physical specications

Feature Specication

Front height 11.51 mm (0.45 inch)

Back height—non-

touch

17.05 mm (0.71 inch)

Back height—touch 17.3 mm (0.79 inch)

Width 304.8 mm (12.0 inches)

Depth 207.95 mm (8.19 inches)

Weight—non-touch

with 3–cell battery

1.18 kg (2.61 lbs)

Environmental specications

Temperature Specications

Operating 0°C to 60°C (32°F to 140°F)

Storage –51°C to 71°C (–59°F to 159°F)

Relative humidity

—maximum

Specications

Operating 10% to 90% (non-condensing)

Storage 5% to 95% (non-condensing)

Altitude—

maximum

Specications

Operating –15.2 m to 3048 m (–50 to 10,000 ft)

0°C to 35°C

Non-operating –15.24 m to 10,668 m (–50 ft to 35,000 ft)

Airborne

contaminant level

G2 or lower as dened by ISA S71.04–1985

48 System specications

System Setup

Topics:

• Boot menu

• Navigation keys

• System setup options

• General screen options

• System Conguration screen options

• Video screen options

• Security screen options

• Secure Boot screen options

• Intel software guard extensions screen options

• Performance screen options

• Power management screen options

• POST behavior screen options

• Manageability

• Virtualization support screen options

• Wireless screen options

• Maintenance screen options

• System logs screen options

• Updating the BIOS in Windows

• System and setup password

Boot menu

Press <F12> when the Dell™ logo appears to initiate a one-time boot menu with a list of the valid boot devices for the system. Diagnostics

and BIOS Setup options are also included in this menu. The devices listed on the boot menu depend on the bootable devices in the system.

This menu is useful when you are attempting to boot to a particular device or to bring up the diagnostics for the system. Using the boot

menu does not make any changes to the boot order stored in the BIOS.

The options are:

• Legacy Boot:

• Internal HDD

• Onboard NIC

• UEFI Boot:

• Windows Boot Manager

• Other Options:

• BIOS Setup

• BIOS Flash Update

• Diagnostics

• Change Boot Mode Settings

System Setup 49

Navigation keys

NOTE: For most of the System Setup options, changes that you make are recorded but do not take eect until you restart the

system.

Keys Navigation

Up arrow Moves to the previous eld.

Down arrow Moves to the next eld.

Enter Selects a value in the selected eld (if applicable) or follow the link in the eld.

Spacebar Expands or collapses a drop‐down list, if applicable.

Tab Moves to the next focus area.

NOTE: For the standard graphics browser only.

Esc Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a message

that prompts you to save any unsaved changes and restarts the system.

System setup options

NOTE: Depending on the notebook and its installed devices, the items listed in this section may or may not appear.

General screen options

This section lists the primary hardware features of your computer.

Option Description

System Information This section lists the primary hardware features of your computer.

• System Information: Displays BIOS Version, Service Tag, Asset Tag, Ownership Tag, Ownership Date,

Manufacture Date, Express Service Code, the Signed Firmware update—enabled by default

• Memory Information: Displays Memory Installed, Memory Available, Memory Speed, Memory Channels Mode,

Memory Technology, DIMM ASize, DIMM B Size,

• Processor Information: Displays Processor Type, Core Count, Processor ID, Current Clock Speed, Minimum

Clock Speed, Maximum Clock Speed, Processor L2 Cache, Processor L3 Cache, HT Capable, and 64-Bit

Technology

• Device Information: Displays M.2 SATA, M.2 PCIe SSD-0, LOM MAC Address, Passthrough MAC address,

Video Controller, Video BIOS Version, Video Memory, Panel Type, Native Resolution, Audio Controller, Wi-Fi

Device, WiGig Device, Cellular Device, Bluetooth Device

Battery Information Displays the battery status health and whether the AC adapter is installed.

Boot Sequence Allows you to change the order in which the computer attempts to nd an operating system.

• Diskette Drive

• Internal HDD

• USB Storage Device

• CD/DVD/CD-RW Drive

• Onboard NIC

Boot sequence

options • Windows boot manager

• WindowsIns

50 System Setup

Option Description

Boot list options • Legacy

• UEFI—selected by default

Advanced Boot

Options

This option allows you the legacy option ROMs to load. By default, the Enable Legacy Option ROMs is disabled.

Enable Attempt Legacy Boot is disabled by default.

UEFI boot path

security • Always, except internal HDD

• Always

• Never

Date/Time Allows you to change the date and time.

System Conguration screen options

Option Description

Integrated NIC Allows you to congure the integrated network controller. The options are:

• Disabled

• Enabled

• Enable UEFI network stack: This option is enabled by default.

• Enabled w/PXE

Parallel Port Allows you to congure the parallel port on the docking station. The options are:

• Disabled

• AT: This option is enabled by default.

• PS2

• ECP

Serial Port Allows you to congure the integrated serial port. The options are:

• Disabled

• COM1: This option is enabled by default.

• COM2

• COM3

• COM4

SATA Operation Allows you to congure the internal SATA hard-drive controller. The options are:

• Disabled

• AHCI

• RAID On: This option is enabled by default.

Drives Allows you to congure the SATA drives on board. All drives are enabled by default. The options are:

• SATA-0

• M.2 PCI-e SSD-0

• SATA-2

System Setup 51

Option Description

SMART Reporting This eld controls whether hard drive errors for integrated drives are reported during system startup. This

technology is part of the SMART (Self-Monitoring Analysis and Reporting Technology) specication. This option is

disabled by default.

• Enable SMART Reporting

USB Conguration This is an optional feature.

This eld congures the integrated USB controller. If Boot Support is enabled, the system is allowed to boot any

type of USB Mass Storage Devices—HDD, memory key, oppy.

If USB port is enabled, device attached to this port is enabled and available for OS.

If USB port is disabled, the OS cannot see any device attached to this port.

The options are:

• Enable USB Boot Support—enabled by default

• Enable the Thunderbolt ports—enabled by default

• Always Allow dell docks—enabled by default

• Enable External USB Port—enabled by default

• Enable Thunderbolt Boot Support

• Enable Thunderbolt (and PCIE behind TBT) Preboot

• Security level-no security

• Security level-user conguration—enabled by default

• Security level-secure connect

• Security level- Display port only

NOTE: USB keyboard and mouse always work in the BIOS setup irrespective of these settings.

USB PowerShare This eld congures the USB PowerShare feature behavior. This option allows you to charge external devices using

the stored system battery power through the USB PowerShare port. This option is disabled by default

Audio This eld enables or disables the integrated audio controller. By default, the Enable Audio option is selected. The

options are:

• Enable Microphone—by default enable

• Enable Internal Speaker—by default enable

Keyboard

Illumination

This eld lets you choose the operating mode of the keyboard illumination feature. The keyboard brightness level

can be set from 0% to 100%. The options are:

• Disabled—enabled by default

• Dim (50%)

• Bright

Keyboard Backlight

with AC

The Keyboard Backlight with AC option does not aect the main keyboard illumination feature. Keyboard

Illumination will continue to support the various illumination levels. This eld has an eect when the backlight is

enabled. This option is enabled by default.

Keyboard Backlight

Timeout on AC

The Keyboard Backlight Timeout dims out with AC option. The main keyboard illumination feature is not aected.

Keyboard Illumination will continue to support the various illumination levels. This eld has an eect when the

backlight is enabled. The options are:

• 5 sec

52 System Setup

Option Description

• 10 sec—enabled by default

• 15 sec

• 30 sec

• 1 min

• 5 min

• 15 min

• Never

Keyboard Backlight

Timeout on Battery

The Keyboard Backlight Timeout dims out with the Battery option. The main keyboard illumination feature is not

aected. Keyboard Illumination will continue to support the various illumination levels. This eld has an eect when

the backlight is enabled. The options are:

• 5 sec

• 10 sec—enabled by default

• 15 sec

• 30 sec

• 1 min

• 5 min

• 15 min

• Never

Touchscreen It controls whether the screen is enabled or disabled. This option is enabled by default.

Unobtrusive Mode This option, when enabled, pressing Fn+F7 turns o all light and sound emissions in the system. To resume normal

operation, press Fn+F7 again. This option is disabled by default.

Miscellaneous

Devices

Allows you to enable or disable the following devices:

• Enable Camera—enabled by default

• Secure Digital (SD) card—enabled by default

• Secure Digital (SD) card boot

• Secure Digital (SD) card read-only-mode

Video screen options

Option Description

LCD Brightness Allows you to set the display brightness depending up on the power source—On Battery and On AC. The LCD

brightness is independent for battery and AC adapter. It can be set using the slider.

NOTE: The video setting is visible only when a video card is installed into the system.

Security screen options

Option Description

Admin Password Allows you to set, change, or delete the administrator (admin) password.

NOTE: You must set the admin password before you set the system or hard drive password. Deleting

the admin password automatically deletes the system password and the hard drive password.

NOTE: Successful password changes take eect immediately.

System Setup 53

Option Description

Default setting: Not set

System Password Allows you to set, change, or delete the system password.

NOTE: Successful password changes take eect immediately.

Default setting: Not set

Internal HDD-2

Password

Allows you to set, change, or delete the administrator password.

NOTE: Successful password changes take eect immediately.

Default setting: Not set

Strong Password Allows you to enforce the option to always set strong passwords.

Default Setting: Enable Strong Password is not selected.

NOTE: If Strong Password is enabled, the Admin and System passwords must contain at least one

uppercase character, one lowercase character and be at least 8 characters long.

Password

Conguration

Allows you to specify the minimum and max password lengths of the Administrator and System passwords.

• min-4—by default, if you want to change you can increase the number

• max-32—you can decrease the number

Password Bypass Allows you to enable or disable the permission to bypass the System and the Internal HDD password, when they

are set. The options are:

• Disabled

• Reboot bypass

Default setting: Disabled

Password Change Allows you to enable the disable permission to the System and Hard Drive passwords when the admin password is

set.

Default setting: Allow Non-Admin Password Changes is selected.

Non-Admin Setup

Changes

Allows you to determine whether changes to the setup options are allowed when an Administrator Password is set.

If disabled the setup options are locked by the admin password.

Option "allow wireless switch changes" is not selected by default.

TPM 2.0 Security Allows you to enable the Trusted Platform Module (TPM) during POST. The options are:

• UEFI capsule Firmware updates—enabled by default

• TPM On—enabled by default

• Clear

• PPI Bypass for Enable Commands

• PPI Bypass for Disabled Commands

• Attestation enable—enabled by default

• Key storage enable—enabled by default

• SHA-256—enabled by default

• Disabled

• Enabled—enabled by default

54 System Setup

Option Description

NOTE: To upgrade or downgrade TPM 2.0, download the TPM wrapper tool—software.

Computrace Allows you to activate or disable the optional Computrace software The options are:

• Deactivate

• Disable

• Activate—enabled by default

NOTE: The Activate and Disable options will permanently activate or disable the feature and no further

changes are allowed

CPU XD Support Allows you to enable the Execute Disable mode of the processor.

Enable CPU XD Support—enabled by default

OROM Keyboard

Access

Allows you to set an option to enter the Option ROM Conguration screens using hotkeys during boot. The options

are:

• Enabled

• One Time Enable

• Disable

Default setting: Enable

Admin Setup

Lockout

Allows you to prevent users from entering Setup when an Administrator password is set.

Default Setting: This option is enabled

Master password

lockout

This option is not enabled by default

Secure Boot screen options

Option Description

Secure Boot Enable This option enables or disables the Secure Boot feature.

• Disabled

• Enabled

Default setting: Enabled

Expert Key

Management

Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Custom

Mode option is disabled by default. The options are:

• PK—enabled by default

• KEK

• db

• dbx

If you enable the Custom Mode, the relevant options for PK, KEK, db, and dbx appear. The options are:

•Save to File—Saves the key to a user-selected le

•Replace from File—Replaces the current key with a key from a user-selected le

•Append from File—Adds a key to the current database from a user-selected le

System Setup 55

Option Description

•Delete—Deletes the selected key

•Reset All Keys—Resets to default setting

•Delete All Keys—Deletes all the keys

NOTE: If you disable the Custom Mode, all the changes made are erased and the keys restore to default

settings.

Intel software guard extensions screen options

Option Description

Intel SGX Enable This eld species you to provide a secured environment for running code/storing sensitive information in the

context of the main OS. The options are:

• Disabled

• Enabled

Default setting: Enabled

Enclave Memory

Size

This option sets SGX Enclave Reserve Memory Size. The options are:

• 32 MB

• 64 MB

• 128 MB—enabled by default

Performance screen options

Option Description

Multi-Core Support This eld species whether the process has one or all cores enabled. The performance of some applications

improves with the additional cores. This option is enabled by default. Allows you to enable or disable multi-core

support for the processor. The installed processor supports two cores. If you enable Multi-Core Support, two cores

are enabled. If you disable Multi-Core Support, one core is enabled.

• Enable Multi-Core Support

Default setting: The option is enabled.

Intel SpeedStep Allows you to enable or disable the Intel SpeedStep feature.

• Enable Intel SpeedStep

Default setting: The option is enabled.

C-States Control Allows you to enable or disable the additional processor sleep states.

• C states

Default setting: The option is enabled.

Intel TurboBoost Allows you to enable or disable the Intel TurboBoost mode of the processor.

• Enable Intel TurboBoost

56 System Setup

Option Description

Default setting: The option is enabled.

HyperThread

Control

Allows you to enable or disable the Hyper-Threading in the processor.

• Disabled

• Enabled

Default setting: Enabled is selected.

Power management screen options

Option Description

AC Behavior Allows you to enable or disable the computer from turning on automatically when an AC adapter is connected.

Default setting: Wake on AC is not selected.

Auto On Time Allows you to set the time at which the computer must turn on automatically. The options are:

• Disabled

• Every Day

• Weekdays

• Select Days

Default setting: Disabled

USB Wake Support Allows you to enable USB devices to wake the system from Standby.

NOTE: This feature is only functional when the AC power adapter is connected. If the AC power

adapter is removed during Standby, the system setup removes power from all the USB ports to

conserve battery power.

• Enable USB Wake Support

• Wake on Dell USB-C dock

Default setting: The option is disabled.

Wake on WLAN Allows you to enable or disable the feature that powers on the computer from the O state when triggered by a

LAN signal.

Default setting: Disabled

Block Sleep This option lets you block entering to sleep (S3 state) in operating system environment.

Block Sleep (S3 state)

Default setting: This option is disabled

Peak Shift This option enables you to minimize the AC power consumption during the peak power times of day. After you

enable this option, your system runs only in battery even if the AC is attached.

Advanced Battery

Charge

Conguration

This option enables you to maximize the battery health. By enabling this option, your system uses the standard

charging algorithm and other techniques, during the nonwork hours to improve the battery health.

Disabled

System Setup 57

Option Description

Default setting: Disabled

Primary Battery

Charge

Conguration

Allows you to select the charging mode for the battery. The options are:

• Adaptive—enabled by default

• Standard—Fully charges your battery at a standard rate.

• ExpressCharge—The battery charges over a shorter time using Dell’s fast charging technology This option is

enabled by default.

• Primarily AC use

• Custom

If Custom Charge is selected, you can also congure Custom Charge Start and Custom Charge Stop.

NOTE: All charging mode may not be available for all the batteries. To enable this option, disable the

Advanced Battery Charge Conguration option.

Sleep mode

• OS Automatic selection—enabled by default

Force S3

Type-C connector

power • 7.5 Watts

• 15 Watts—enabled by default

POST behavior screen options

Option Description

Adapter Warnings Allows you to enable or disable the system setup (BIOS) warning messages when you use certain power adapters.

Default setting: Enable Adapter Warnings

Keypad

(Embedded)

Allows you to choose one of two methods to enable the keypad that is embedded in the internal keyboard.

• Fn Key Only—default.

• By Numlock

NOTE: When setup is running, this option has no eect. Setup works in Fn Key Only

mode.

Mouse/Touchpad Allows you to dene how the system handles mouse and touch pad input. The options are:

• Serial Mouse

• PS2 Mouse

• Touchpad/PS-2 Mouse: This option is enabled by default.

Numlock Enable Allows you to enable the Numlock option when the computer boots.

Enable Network. This option is enabled by default.

Fn Key Emulation Allows you to set the option where the Scroll Lock key is used to simulate the Fn key feature.

Enable Fn Key Emulation (default)

58 System Setup

Option Description

Fn Lock Options Allows you to let hot key combinations Fn + Esc toggle the primary behavior of F1–F12, between their standard

and secondary functions. If you disable this option, you cannot toggle dynamically the primary behavior of these

keys. The available options are:

Extended BIOS

POST Time

Allows you to create an extra preboot delay. The options are:

• 0 seconds—enabled by default.

• 5 seconds

• 10 seconds

Full Screen Log • Enable Full Screen Logo—not enabled

Warnings and errors • Prompt on warnings and errors—enabled by default

• Continue on warnings

• Continue on warnings and errors

Manageability

Option Description

USB provision Enable USB provision is not selected by default

MEBX Hotkey —

enabled by default

Allows you to specify whether the MEBx Hotkey function should enable, during the system boot.

• Disabled

• Enabled

Default setting: Disabled

Virtualization support screen options

Option Description

VT for Direct I/O Enables or disables the Virtual Machine Monitor (VMM) from utilizing the additional hardware capabilities provided

by Intel® Virtualization technology for direct I/O.

Enable VT for Direct I/O - enabled by default.

Trusted Execution This option species whether a Measured Virtual Machine Monitor (MVMM) can utilize the additional hardware

capabilities provided by Intel Trusted Execution Technology. The TPM Virtualization Technology, and the

Virtualization technology for direct I/O must be enabled to use this feature.

Trusted Execution - disabled by default.

Wireless screen options

Option Description

Wireless Switch Allows to set the wireless devices that can be controlled by the wireless switch. The options are:

System Setup 59

Option Description

• WWAN

• GPS (on WWAN Module)

• WLAN/WiGig

• Bluetooth

All the options are enabled by default.

NOTE: For WLAN and WiGig enable or disable controls are tied together and they cannot be enabled or

disabled independently.

Wireless Device

Enable

Allows you to enable or disable the internal wireless devices.

• WWAN/GPS

• WLAN/WiGig

• Bluetooth

All the options are enabled by default.

NOTE: IMEI number for WWAN can be found ont the outer box or the WWAN card.

Maintenance screen options

Option Description

Service Tag Displays the Service Tag of your computer.

Asset Tag Allows you to create a system asset tag if an asset tag is not already set. This option is not set by default.

BIOS Downgrade This controls ashing of the system rmware to previous revisions. Option 'Allow BIOS downgrade' is enabled by

default.

Data Wipe This eld allows users to erase the data securely from all internal storage devices. Option 'Wipe on Next boot' is not

enabled by default. The following is list of devices aected:

• Internal SATA HDD/SSD

• Internal M.2 SATA SDD

• Internal M.2 PCIe SSD

• Internal eMMC

BIOS Recovery This eld allows you to recover from certain corrupted BIOS conditions from a recover le on the user primary hard

drive or an external USB key.

• BIOS Recovery from Hard Drive—enabled by default

• Always perform integrity check—disabled by default

System logs screen options

Option Description

BIOS Events Allows you to view and clear the System Setup (BIOS) POST events.

Thermal Events Allows you to view and clear the System Setup (Thermal) events.

Power Events Allows you to view and clear the System Setup (Power) events.

60 System Setup

Updating the BIOS in Windows

It is recommended to update your BIOS (System Setup), on replacing the system board or if an update is available. For laptops, ensure that

your computer battery is fully charged and connected to a power outlet

NOTE: If BitLocker is enabled, it must be suspended prior to updating the system BIOS, and then re-enabled after the BIOS

update is completed.

1 Restart the computer.

2 Go to Dell.com/support.

• Enter the Service Tag or Express Service Code and click Submit.

• ClickDetect Product and follow the instructions on screen,

3 If you are unable to detect or nd the Service Tag, click the Choose from all products.

4 Choose the Products category from the list.

NOTE: Choose the appropriate category to reach the product page

5 Select your computer model and the Product Support page of your computer appears.

6 Click Get drivers and click Drivers and Downloads.

The Drivers and Downloads section opens.

7 Click Find it myself.

8 Click BIOS to view the BIOS versions.

9 Identify the latest BIOS le and click Download.

10 Select your preferred download method in the Please select your download method below window, click Download File.

The File Download window appears.

11 Click Save to save the le on your computer.

12 Click Run to install the updated BIOS settings on your computer.

Follow the instructions on the screen.

NOTE: It is recommended not to update the BIOS version for more than 3 revisions. For example: If you want to update the BIOS

from 1.0 to 7.0, then install version 4.0 rst and then install version 7.0.

System and setup password

You can create a system password and a setup password to secure your computer.

Password type Description

System password Password that you must enter to log on to your system.

Setup password Password that you must enter to access and make changes to the BIOS settings of your computer.

CAUTION: The password features provide a basic level of security for the data on your computer.

CAUTION: Anyone can access the data stored on your computer if it is not locked and left unattended.

NOTE: Your computer is shipped with the system and setup password feature is disabled.

Assigning a system password and setup password

You can assign a new System Password only when the status is in Not Set.

To enter the system setup, press F2 immediately after a power-on or re-boot.

1 In the System BIOS or System Setup screen, select Security and press Enter.

System Setup 61

The Security screen is displayed.

2 Select System Password and create a password in the Enter the new password eld.

Use the following guidelines to assign the system password:

• A password can have up to 32 characters.

• The password can contain the numbers 0 through 9.

• Only lower case letters are valid, upper case letters are not allowed.

• Only the following special characters are allowed: space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).

3 Type the system password that you entered earlier in the Conrm new password eld and click OK.

4 Press Esc and a message prompts you to save the changes.

5 Press Y to save the changes.

The computer reboots.

Deleting or changing an existing system and/or setup

password

Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing System and/or

Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is Locked.

To enter the System Setup, press F2 immediately after a power-on or reboot.

1 In the System BIOS or System Setup screen, select System Security and press Enter.

The System Security screen is displayed.

2 In the System Security screen, verify that Password Status is Unlocked.

3 Select System Password, alter or delete the existing system password and press Enter or Tab.

4 Select Setup Password, alter or delete the existing setup password and press Enter or Tab.

NOTE: If you change the System and/or Setup password, re-enter the new password when promoted. If you delete the

System and/or Setup password, conrm the deletion when promoted.

5 Press Esc and a message prompts you to save the changes.

6 Press Y to save the changes and exit from System Setup.

The computer reboots.

62 System Setup

Troubleshooting

Enhanced Pre-Boot System Assessment (ePSA)

diagnostics

The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the

BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device

groups allowing you to:

• Run tests automatically or in an interactive mode

• Repeat tests

• Display or save test results

• Run thorough tests to introduce additional test options to provide extra information about the failed device(s)

• View status messages that inform you if tests are completed successfully

• View error messages that inform you of problems encountered during testing

CAUTION: Use the system diagnostics to test only your computer. Using this program with other computers may cause invalid

results or error messages.

NOTE: Some tests for specic devices require user interaction. Always ensure that you are present at the computer terminal

when the diagnostic tests are performed.

Running the ePSA diagnostics

1 Power-on the computer.

2 As the computer boots, press the F12 key as the Dell logo appears.

3 On the boot menu screen, select the Diagnostics option.

The Enhanced Pre-boot System Assessment window is displayed.

4 Click the arrow key at the bottom left corner.

Diagnostics front page is displayed.

5 Press the arrow in the lower-right corner to go to the page listing.

The items detected are listed.

6 To run a diagnostic test on a specic device, press Esc and click Yes to stop the diagnostic test.

7 Select the device from the left pane and click Run Tests.

8 If there are any issues, error codes are displayed.

Note the error code and validation number and contact Dell.

Troubleshooting 63

Contacting Dell

NOTE: If you do not have an active Internet connection, you can nd contact information on your purchase invoice, packing slip,

bill, or Dell product catalog.

Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services

may not be available in your area. To contact Dell for sales, technical support, or customer service issues:

1 Go to Dell.com/support.

2 Select your support category.

3 Verify your country or region in the Choose a Country/Region drop-down list at the bottom of the page.

4 Select the appropriate service or support link based on your need.

64 Contacting Dell

Table of Contents

DELL 7280 User Manual

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