Dell Latitude 3400 Service Manual
Contents
Working on your computer
Technology and components
Major components of your system
Removing and installing components
System setup
Troubleshooting
Getting help
- Contacting Dell

DELL 3400 User Manual

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DELL 3400 Manual

Dell Latitude 3400

Service Manual

Regulatory Model: P111G

Regulatory Type: P111G001

November 2021

Rev. A05

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.

Other trademarks may be trademarks of their respective owners.

Chapter 1: Working on your computer............................................................................................7

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

Turning off your computer — Windows 10...................................................................................................................8

Before working inside your computer.............................................................................................................................8

After working inside your computer................................................................................................................................8

Chapter 2: Technology and components........................................................................................ 9

DDR4.......................................................................................................................................................................................9

USB features.......................................................................................................................................................................10

USB Type-C.........................................................................................................................................................................12

Intel Optane memory.........................................................................................................................................................13

Enabling Intel Optane memory.................................................................................................................................. 13

Disabling Intel Optane memory................................................................................................................................. 13

Intel UHD Graphics 620....................................................................................................................................................14

Nvidia GeForce MX130 equivalent.................................................................................................................................14

Chapter 3: Major components of your system ............................................................................. 15

Chapter 4: Removing and installing components.......................................................................... 17

Recommended tools.......................................................................................................................................................... 17

Secure Digital Card............................................................................................................................................................ 17

Removing the Secure Digital card............................................................................................................................17

Installing the Secure Digital card..............................................................................................................................18

SIM Card.............................................................................................................................................................................. 19

Removing the SIM card.............................................................................................................................................. 19

Installing the SIM card............................................................................................................................................... 20

Base cover........................................................................................................................................................................... 21

Removing the base cover...........................................................................................................................................21

Installing the base cover............................................................................................................................................ 24

Memory modules............................................................................................................................................................... 26

Removing the memory module.................................................................................................................................26

Installing the memory module................................................................................................................................... 27

WLAN card..........................................................................................................................................................................28

Removing the WLAN card.........................................................................................................................................28

Installing the WLAN card........................................................................................................................................... 29

WWAN card........................................................................................................................................................................ 30

Removing the WWAN card....................................................................................................................................... 30

Installing the WWAN card.......................................................................................................................................... 31

WWAN daughterboard.....................................................................................................................................................32

Removing the WWAN daughterboard ...................................................................................................................32

Installing the WWAN daughterboard...................................................................................................................... 34

Hard drive............................................................................................................................................................................36

Removing the hard drive assembly......................................................................................................................... 36

Installing the hard drive assembly............................................................................................................................37

Contents

Contents 3

Coin-cell battery................................................................................................................................................................ 39

Removing the coin cell battery................................................................................................................................ 39

Installing the coin cell battery.................................................................................................................................. 40

Battery................................................................................................................................................................................. 40

Lithium-ion battery precautions...............................................................................................................................40

Removing the battery................................................................................................................................................. 41

Installing the battery...................................................................................................................................................42

Speakers.............................................................................................................................................................................. 44

Removing the speakers..............................................................................................................................................44

Installing the speakers................................................................................................................................................45

Solid-state drive/Intel Optane memory module.........................................................................................................47

Removing the M.2 2280 Solid-state drive or Intel Optane memory—Optional...........................................47

Installing the M.2 2280 Solid-state drive or Intel Optane memory - Optional............................................. 49

Removing the M.2 Solid-state drive bracket........................................................................................................ 51

Installing the Solid-state drive bracket.................................................................................................................. 52

Removing the M.2 2230 Solid-state drive............................................................................................................ 53

Installing the M.2 2230 Solid-state drive.............................................................................................................. 55

IO board............................................................................................................................................................................... 57

Removing the IO board.............................................................................................................................................. 57

Installing the IO board................................................................................................................................................ 59

Touchpad............................................................................................................................................................................ 60

Removing the touchpad assembly.......................................................................................................................... 60

Installing the touch pad assembly........................................................................................................................... 62

System fan..........................................................................................................................................................................64

Removing the system fan..........................................................................................................................................64

Installing the system fan............................................................................................................................................66

Heat sink..............................................................................................................................................................................68

Removing the heatsink—UMA................................................................................................................................ 68

Installing the heatsink—UMA...................................................................................................................................69

Removing the heatsink—discrete........................................................................................................................... 70

Installing the heatsink—discrete.............................................................................................................................. 71

VGA daughterboard.......................................................................................................................................................... 72

Removing the VGA daughterboard......................................................................................................................... 72

Installing the VGA daughterboard............................................................................................................................74

Power-button board......................................................................................................................................................... 75

Removing the power button board with optional fingerprint reader.............................................................. 75

Installing the power button board with optional fingerprint reader.................................................................77

System board......................................................................................................................................................................78

Removing the system board..................................................................................................................................... 78

Installing the system board........................................................................................................................................ 81

Display assembly................................................................................................................................................................84

Removing the display assembly............................................................................................................................... 84

Installing the display assembly..................................................................................................................................88

Display bezel.......................................................................................................................................................................92

Removing the display bezel.......................................................................................................................................92

Installing the display bezel ........................................................................................................................................94

Display panel.......................................................................................................................................................................96

Removing the display panel...................................................................................................................................... 96

Installing the display panel.........................................................................................................................................99

Display cable..................................................................................................................................................................... 102

4Contents

Removing the display cable.....................................................................................................................................102

Installing the display cable....................................................................................................................................... 104

Power-adapter port........................................................................................................................................................ 106

Removing the power adapter port........................................................................................................................ 106

Installing the power adapter port...........................................................................................................................107

Camera............................................................................................................................................................................... 108

Removing the camera...............................................................................................................................................108

Installing the camera..................................................................................................................................................110

Palmrest and Keyboard assembly................................................................................................................................. 112

Removing the palmrest and keyboard................................................................................................................... 112

Installing the palmrest and keyboard..................................................................................................................... 113

Palmrest..............................................................................................................................................................................114

Removing the palmrest ............................................................................................................................................ 114

Chapter 5: System setup............................................................................................................ 116

BIOS overview...................................................................................................................................................................116

Entering BIOS setup program....................................................................................................................................... 116

Navigation keys.................................................................................................................................................................116

One time boot menu........................................................................................................................................................ 117

System setup..................................................................................................................................................................... 117

Boot options.......................................................................................................................................................................117

System configuration.......................................................................................................................................................118

Video screen options...................................................................................................................................................... 120

Security.............................................................................................................................................................................. 120

Passwords......................................................................................................................................................................... 122

Secure boot.......................................................................................................................................................................123

Expert Key Management............................................................................................................................................... 123

Performance..................................................................................................................................................................... 124

Power management........................................................................................................................................................ 124

Wireless options............................................................................................................................................................... 125

Post behavior....................................................................................................................................................................126

Virtualization support......................................................................................................................................................127

Maintenance......................................................................................................................................................................127

System logs.......................................................................................................................................................................128

SupportAssist system resolution..................................................................................................................................128

Updating the BIOS...........................................................................................................................................................128

Updating the BIOS in Windows.............................................................................................................................. 128

Updating the BIOS in Linux and Ubuntu.............................................................................................................. 129

Updating the BIOS using the USB drive in Windows........................................................................................ 129

Updating the BIOS from the F12 One-Time boot menu................................................................................... 129

System and setup password......................................................................................................................................... 130

Assigning a system setup password......................................................................................................................130

Deleting or changing an existing system setup password................................................................................ 131

Clearing CMOS settings................................................................................................................................................. 131

Clearing BIOS (System Setup) and System passwords..........................................................................................131

Chapter 6: Troubleshooting....................................................................................................... 133

Handling swollen Lithium-ion batteries.......................................................................................................................133

Dell SupportAssist Pre-boot System Performance Check diagnostics..............................................................134

Contents 5

Running the SupportAssist Pre-Boot System Performance Check.............................................................. 134

Built-in self-test (BIST)..................................................................................................................................................134

M-BIST......................................................................................................................................................................... 134

LCD Power rail test (L-BIST)................................................................................................................................. 135

LCD Built-in Self Test (BIST)................................................................................................................................. 135

Diagnostic LED................................................................................................................................................................. 136

Battery status LED.......................................................................................................................................................... 137

Recovering the operating system................................................................................................................................ 137

Real-Time Clock (RTC Reset)...................................................................................................................................... 137

Backup media and recovery options........................................................................................................................... 137

WiFi power cycle.............................................................................................................................................................. 137

Drain residual flea power (perform hard reset)........................................................................................................138

Chapter 7: Getting help..............................................................................................................139

Contacting Dell.................................................................................................................................................................139

6 Contents

Working on your computer

Topics:

•Safety instructions

•Turning off your computer — Windows 10

•Before working inside your computer

•After working inside your computer

Safety instructions

Prerequisites

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.

About this task

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

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 at the same time as touching 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: 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.

CAUTION: Exercise caution when handling Lithium-ion batteries in laptops. Swollen batteries should not be used

and should be replaced and disposed properly.

NOTE: The color of your computer and certain components may appear differently than shown in this document.

Working on your computer 7

Turning off your computer — Windows 10

About this task

CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your

computer or remove the side cover.

Steps

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 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.

Before working inside your computer

Steps

1. Save and close all open files and exit all open applications.

2. Shut down your computer. Click Start > Power > Shut down.

NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down

instructions.

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

4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.

5. Remove any media card and optical disc from your computer, if applicable.

6. After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board.

CAUTION: Place the computer on a flat, soft, and clean surface to avoid scratches on the display.

7. Place the computer face down.

After working inside your computer

About this task

NOTE: Leaving stray or loose screws inside your computer may severely damage your computer.

Steps

1. Replace all screws and ensure that no stray screws remain inside your computer.

2. Connect any external devices, peripherals, or cables you removed before working on your computer.

3. Replace any media cards, discs, or any other parts that you removed before working on your computer.

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

5. Turn on your computer.

8Working on your computer

Technology and components

Topics:

•DDR4

•USB features

•USB Type-C

•Intel Optane memory

•Intel UHD Graphics 620

•Nvidia GeForce MX130 equivalent

DDR4

DDR4 (double data rate fourth generation) memory is a higher-speed successor to the DDR2 and DDR3 technologies and allows

up to 512 GB in capacity, compared to the DDR3's maximum of 128 GB per DIMM. DDR4 synchronous dynamic random-access

memory is keyed differently from both SDRAM and DDR to prevent the user from installing the wrong type of memory into the

system.

DDR4 needs 20 percent less or just 1.2 volts, compared to DDR3 which requires 1.5 volts of electrical power to operate. DDR4

also supports a new, deep power-down mode that allows the host device to go into standby without needing to refresh its

memory. Deep power-down mode is expected to reduce standby power consumption by 40 to 50 percent.

DDR4 Details

There are subtle differences between DDR3 and DDR4 memory modules, as listed below.

Key notch difference

The key notch on a DDR4 module is in a different location from the key notch on a DDR3 module. Both notches are on the

insertion edge but the notch location on the DDR4 is slightly different, to prevent the module from being installed into an

incompatible board or platform.

Figure 1. Notch difference

Increased thickness

DDR4 modules are slightly thicker than DDR3, to accommodate more signal layers.

Technology and components 9

Figure 2. Thickness difference

Curved edge

DDR4 modules feature a curved edge to help with insertion and alleviate stress on the PCB during memory installation.

Figure 3. Curved edge

Memory Errors

Memory errors on the system display the new ON-FLASH-FLASH or ON-FLASH-ON failure code. If all memory fails, the LCD

does not turn on. Troubleshoot for possible memory failure by trying known good memory modules in the memory connectors on

the bottom of the system or under the keyboard, as in some portable systems.

NOTE: The DDR4 memory is imbedded in board and not a replaceable DIMM as shown and referred.

USB features

Universal Serial Bus, or USB, was introduced in 1996. It dramatically simplified the connection between host computers and

peripheral devices like mice, keyboards, external drivers, and printers.

Table 1. USB evolution

Type Data Transfer Rate Category Introduction Year

USB 2.0 480 Mbps High Speed 2000

USB 3.0/USB 3.1 Gen

5 Gbps SuperSpeed 2010

USB 3.1 Gen 2 10 Gbps SuperSpeed 2013

USB 3.0/USB 3.1 Gen 1 (SuperSpeed USB)

For years, the USB 2.0 has been firmly entrenched as the de facto interface standard in the PC world with about 6 billion

devices sold, and yet the need for more speed grows by ever faster computing hardware and ever greater bandwidth demands.

The USB 3.0/USB 3.1 Gen 1 finally has the answer to the consumers' demands with a theoretically 10 times faster than its

predecessor. In a nutshell, USB 3.1 Gen 1 features are as follows:

●Higher transfer rates (up to 5 Gbps)

●Increased maximum bus power and increased device current draw to better accommodate power-hungry devices

●New power management features

10 Technology and components

●Full-duplex data transfers and support for new transfer types

●Backward USB 2.0 compatibility

●New connectors and cable

The topics below cover some of the most commonly asked questions regarding USB 3.0/USB 3.1 Gen 1.

Speed

Currently, there are 3 speed modes defined by the latest USB 3.0/USB 3.1 Gen 1 specification. They are Super-Speed, Hi-Speed

and Full-Speed. The new SuperSpeed mode has a transfer rate of 4.8 Gbps. While the specification retains Hi-Speed, and

Full-Speed USB mode, commonly known as USB 2.0 and 1.1 respectively, the slower modes still operate at 480 Mbps and 12

Mbps respectively and are kept to maintain backward compatibility.

USB 3.0/USB 3.1 Gen 1 achieves the much higher performance by the technical changes below:

●An additional physical bus that is added in parallel with the existing USB 2.0 bus (refer to the picture below).

●USB 2.0 previously had four wires (power, ground, and a pair for differential data); USB 3.0/USB 3.1 Gen 1 adds four more

for two pairs of differential signals (receive and transmit) for a combined total of eight connections in the connectors and

cabling.

●USB 3.0/USB 3.1 Gen 1 utilizes the bidirectional data interface, rather than USB 2.0's half-duplex arrangement. This gives a

10-fold increase in theoretical bandwidth.

With today's ever increasing demands placed on data transfers with high-definition video content, terabyte storage devices,

high megapixel count digital cameras etc., USB 2.0 may not be fast enough. Furthermore, no USB 2.0 connection could ever

come close to the 480Mbps theoretical maximum throughput, making data transfer at around 320 Mbps (40 MB/s) — the

actual real-world maximum. Similarly, USB 3.0/USB 3.1 Gen 1 connections will never achieve 4.8Gbps. We will likely see a

real-world maximum rate of 400MB/s with overheads. At this speed, USB 3.0/USB 3.1 Gen 1 is a 10x improvement over USB

2.0.

Applications

USB 3.0/USB 3.1 Gen 1 opens up the laneways and provides more headroom for devices to deliver a better overall

experience. Where USB video was barely tolerable previously (both from a maximum resolution, latency, and video compression

perspective), it's easy to imagine that with 5-10 times the bandwidth available, USB video solutions should work that much

better. Single-link DVI requires almost 2Gbps throughput. Where 480Mbps was limiting, 5Gbps is more than promising. With its

promised 4.8Gbps speed, the standard will find its way into some products that previously weren't USB territory, like external

RAID storage systems.

Listed below are some of the available SuperSpeed USB 3.0/USB 3.1 Gen 1 products:

●External Desktop USB 3.0/USB 3.1 Gen 1 Hard Drives

●Portable USB 3.0/USB 3.1 Gen 1 Hard Drives

Technology and components 11

●USB 3.0/USB 3.1 Gen 1 Drive Docks & Adapters

●USB 3.0/USB 3.1 Gen 1 Flash Drives & Readers

●USB 3.0/USB 3.1 Gen 1 Solid-state Drives

●USB 3.0/USB 3.1 Gen 1 RAIDs

●Optical Media Drives

●Multimedia Devices

●Networking

●USB 3.0/USB 3.1 Gen 1 Adapter Cards & Hubs

Compatibility

The good news is that USB 3.0/USB 3.1 Gen 1 has been carefully planned from the start to peacefully co-exist with USB 2.0.

First of all, while USB 3.0/USB 3.1 Gen 1 specifies new physical connections and thus new cables to take advantage of the

higher speed capability of the new protocol, the connector itself remains the same rectangular shape with the four USB 2.0

contacts in the exact same location as before. Five new connections to carry receive and transmitted data independently are

present on USB 3.0/USB 3.1 Gen 1 cables and only come into contact when connected to a proper SuperSpeed USB connection.

USB Type-C

USB Type-C is a new, tiny physical connector. The connector itself can support various exciting new USB standard like USB 3.1

and USB power delivery (USB PD).

Alternate Mode

USB Type-C is a new connector standard that's very small. It's about a third the size of an old USB Type-A plug. This is

a single connector standard that every device should be able to use. USB Type-C ports can support a variety of different

protocols using “alternate modes,” which allows you to have adapters that can output HDMI, VGA, DisplayPort, or other types

of connections from that single USB port

USB Power Delivery

The USB PD specification is also closely intertwined with USB Type-C. Currently, smartphones, tablets, and other mobile

devices often use a USB connection to charge. A USB 2.0 connection provides up to 2.5 watts of power — that'll charge your

phone, but that's about it. A laptop might require up to 60 watts, for example. The USB Power Delivery specification ups this

power delivery to 100 watts. It's bi-directional, so a device can either send or receive power. And this power can be transferred

at the same time the device is transmitting data across the connection.

This could spell the end of all those proprietary laptop charging cables, with everything charging via a standard USB connection.

You could charge your laptop from one of those portable battery packs you charge your smartphones and other portable devices

from today. You could plug your laptop into an external display connected to a power cable, and that external display would

charge your laptop as you used it as an external display — all via the one little USB Type-C connection. To use this, the device

and the cable have to support USB Power Delivery. Just having a USB Type-C connection doesn't necessarily mean they do.

USB Type-C and USB 3.1

USB 3.1 is a new USB standard. USB 3's theoretical bandwidth is 5 Gbps, while USB 3.1 Gen2 is10Gbps . That's double the

bandwidth, as fast as a first-generation Thunderbolt connector. USB Type-C isn't the same thing as USB 3.1. USB Type-C is just

a connector shape, and the underlying technology could just be USB 2 or USB 3.0. In fact, Nokia's N1 Android tablet uses a USB

Type-C connector, but underneath it's all USB 2.0 — not even USB 3.0. However, these technologies are closely related.

12 Technology and components

Intel Optane memory

Intel Optane memory functions only as a storage accelerator. It neither replaces nor adds to the memory (RAM) installed on

your computer.

NOTE: Intel Optane memory is supported on computers that meet the following requirements:

●7th Generation or higher Intel Core i3/i5/i7 processor

●Windows 10 64-bit version or higher

●Intel Rapid Storage Technology driver version 15.9.1.1018 or higher

Table 2. Intel Optane memory specifications

Feature Specifications

Interface PCIe 3x2 NVMe 1.1

Connector M.2 card slot (2230/2280)

Configurations supported ●7th Generation or higher Intel Core i3/i5/i7 processor

●Windows 10 64-bit version or higher

●Intel Rapid Storage Technology driver version 15.9.1.1018

or higher

Capacity 32 GB or 64 GB

Enabling Intel Optane memory

Steps

1. On the taskbar, click the search box, and type "Intel Rapid Storage Technology".

2. Click Intel Rapid Storage Technology.

3. On the Status tab, click Enable to enable the Intel Optane memory.

4. On the warning screen, select a compatible fast drive, and then click Yes to continue enabling Intel Optane memory.

5. Click Intel Optane memory > Reboot to enable the Intel Optane memory.

NOTE: Applications may take up to three subsequent launches after enablement to see the full performance benefits.

Disabling Intel Optane memory

About this task

CAUTION: After disabling Intel Optane memory, do not uninstall the driver for Intel Rapid Storage Technology

as it will result in a blue screen error. The Intel Rapid Storage Technology user interface can be removed without

uninstalling the driver.

NOTE: Disabling Intel Optane memory is required before removing the SATA storage device, accelerated by the Intel

Optane memory module, from the computer.

Steps

1. On the taskbar, click the search box, and then type "Intel Rapid Storage Technology".

2. Click Intel Rapid Storage Technology. The Intel Rapid Storage Technology window is displayed.

3. On the Intel Optane memory tab, click Disable to disable the Intel Optane memory.

4. Click Yes if you accept the warning.

The disabling progress is displayed.

5. Click Reboot to complete disabling Intel Optane memory and restart your computer.

Technology and components 13

Intel UHD Graphics 620

Table 3. Intel UHD Graphics 620 specifications

Intel UHD Graphics 620

Bus Type Integrated

Memory Type LPDDR3

Graphics Level i3/i5/i7: G T2 (UHD 620)

Estimated Maximum Power Consumption (TDP) 15 W (included in the CPU power)

Overlay Planes Yes

Operating Systems Graphics/ Video API Support DirectX 12 (Windows 10), OpenGL 4.5

Maximum Vertical Refresh Rate Up to 85 Hz depending on resolution

Multiple Display Support On System: eDP (internal), HDMI

Via Optional USB Type-C Port: VGA, DisplayPort

External Connectors HDMI 1.4b

USB Type–C port

Nvidia GeForce MX130 equivalent

Table 4. Nvidia GeForce MX130 specifications

Feature Specifications

Graphics memory 2 GB GDDR5

Bus type PCI Express 3.0

Memory Interface GDDR5

Clock Speeds 1122 - 1242 (Boost) MHz

Maximum Color Depth N/A

Maximum Vertical Refresh Rate N/A

Operating Systems Graphics/ Video API Support Windows 10/ DX 12/ OGL4.5

Supported Resolutions and Max Refresh Rates (Hz) N/A

Numbers of Display Support No display output from MX130

14 Technology and components

Major components of your system

1. Base cover

2. Power adapter port

Major components of your system 15

3. WLAN card

4. Memory modules

5. System board

6. M.2 Solid-state drive or Intel Optane memory—Optional

7. Battery

8. Palmrest assembly

9. Speakers

10. Touchpad assembly

11. Display assembly

12. Hard drive assembly

13. IO board

14. VGA daughterboard

15. System fan

16. Heatsink

NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These

parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for

purchase options.

16 Major components of your system

Removing and installing components

Topics:

•Recommended tools

•Secure Digital Card

•SIM Card

•Base cover

•Memory modules

•WLAN card

•WWAN card

•WWAN daughterboard

•Hard drive

•Coin-cell battery

•Battery

•Speakers

•Solid-state drive/Intel Optane memory module

•IO board

•Touchpad

•System fan

•Heat sink

•VGA daughterboard

•Power-button board

•System board

•Display assembly

•Display bezel

•Display panel

•Display cable

•Power-adapter port

•Camera

•Palmrest and Keyboard assembly

•Palmrest

Recommended tools

The procedures in this document may require the following tools:

●Phillips #0 screwdriver

●Phillips #1 screwdriver

●Plastic scribe-Recommended for field technician

Secure Digital Card

Removing the Secure Digital card

Prerequisites

1. Follow the procedure in Before working inside your computer

Removing and installing components 17

Steps

1. Push the secure digital card to release it from the computer.

2. Slide the secure digital card out of the computer.

Installing the Secure Digital card

Steps

1. Slide the secure digital into the slot until it clicks into place.

2. Follow the procedures in After working inside your computer.

18 Removing and installing components

SIM Card

Removing the SIM card

Prerequisites

1. Follow the procedure in Before working inside your computer

Steps

1. Open the latch that covers the SIM card slot to release it from the system [1].

2. Insert a needle in the slot and push it to eject the SIM card tray [2].

3. Pull the SIM card try and remove the SIM card from the SIM card tray [3] and [4].

Removing and installing components 19

Installing the SIM card

Steps

1. Open the latch that covers the SIM card slot to release it from the system [1].

2. Insert a needle in the slot and push it to eject the SIM card tray [2].

3. Pull the SIM card try and place the SIM card on the SIM cad tray [3] and [4].

4. Slide the SIM card tray into the slot until it clicks into place.

20 Removing and installing components

5. Follow the procedures in After working inside your computer.

Base cover

Removing the base cover

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

Steps

1. Loosen the nine captive screws that secure the base cover to the palmrest and keyboard assembly.

Removing and installing components 21

2. Pry the base cover and continue to open the right side of the base cover.

22 Removing and installing components

3. Lift the right side of the base cover [1], and remove it off the palmrest and keyboard assembly [2].

Removing and installing components 23

Installing the base cover

Steps

1. Place the base cover on the palmrest and keyboard assembly [1].

24 Removing and installing components

2. Tighten the nine captive screws that secure the base cover to the palmrest and keyboard assembly.

Removing and installing components 25

Next steps

1. Replace the SD memory card

2. Follow the procedure in after working inside your computer

Memory modules

Removing the memory module

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery cable.

Steps

1. Pry the clips securing the memory module until the memory module pops-up [1].

2. Remove the memory module from the memory module slot [2].

26 Removing and installing components

Installing the memory module

Steps

1. Align the notch on the memory module with the tab on the memory-module slot.

2. Slide the memory module firmly into the slot at an angle [1].

3. Press the memory module down until the clips secure it [2].

NOTE: If you do not hear the click, remove the memory module and reinstall it.

Removing and installing components 27

Next steps

1. Reconnect the battery cable.

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

WLAN card

Removing the WLAN card

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery cable.

Steps

1. Remove the single (M2x3) screw that secures the WLAN card bracket to the system board [1].

2. Slide and remove the WLAN card bracket that secures the WLAN cables [2].

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

4. Lift the WLAN card away from the connector [4].

28 Removing and installing components

Installing the WLAN card

About this task

CAUTION: To avoid damage to the WLAN card, do not place any cables under it.

Steps

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

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

3. Place the WLAN card bracket to secure the WLAN cables to the WLAN card [3].

4. Replace the single (M2x3) screw to secure the WLAN bracket to the WLAN card [4].

Removing and installing components 29

Next steps

1. Reconnect the battery cable.

2. Replace the base cover.

3. Replace the SD memory card.

4. Follow the procedure in after working inside your computer.

WWAN card

Removing the WWAN card

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the SIM card.

4. Remove the base cover

5. Disconnect the battery cable.

Steps

1. Remove the single (M2x3) screw that secures the WWAN card bracket to the WWAN card [1].

2. Slide and remove the WWAN card bracket that secures the WWAN cables [2].

3. Disconnect the WWAN cables from the connectors on the WWAN card [3].

4. Lift the WWAN card away from the connector on the WWAN daughterboard [4].

30 Removing and installing components

Installing the WWAN card

About this task

CAUTION: To avoid damage to the WWAN card, do not place any cables under it.

Steps

1. Insert the WWAN card into the connector on the WWAN daughterboard [1].

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

3. Place the WWAN card bracket to secure the WWAN cables to the WWAN card [3].

4. Replace the single (M2x3) screw to secure the WWAN bracket to the WWAN card [4].

Removing and installing components 31

Next steps

1. Reconnect the battery cable.

2. Replace the base cover.

3. Replace the SIM card

4. Replace the SD memory card.

5. Follow the procedure in after working inside your computer.

WWAN daughterboard

Removing the WWAN daughterboard

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the SIM card.

4. Remove the base cover.

5. Disconnect the battery cable.

6. Remove the WWAN card.

32 Removing and installing components

Steps

1. Open the latch and disconnect the WWAN daughterboard cable from the WWAN daughterboard.

Removing and installing components 33

2. Remove two (M2x3) screws that secure the WWAN daughterboard to the palm rest and keyboard assembly

[1] and then lift the WWAN daughterboard card away from the palm rest and keyboard assembly [2].

Installing the WWAN daughterboard

About this task

CAUTION: To avoid damage to the WWAN card, do not place any cables under it.

Steps

1. Using the alignment posts, place the WWAN daughterboard on the palm rest and keyboard assembly [1]

2. Replace the two (M2x3) screws that secure the WWAN daughterboard to the palm rest and keyboard assembly [2].

34 Removing and installing components

3. Connect the WWAN daughterboard cable to the connector on the WWAN daughterboard and close the latch to secure the

cable [1].

Removing and installing components 35

Next steps

1. Replace the WWAN card

2. Reconnect the battery cable.

3. Replace the base cover.

4. Replace the SIM card

5. Replace the SD memory card.

6. Follow the procedure in after working inside your computer.

Hard drive

Removing the hard drive assembly

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery cable.

Steps

1. Disconnect the hard drive cable from the system board [1].

2. Peel the tape that secures the hard drive cable to the system board [2].

3. Remove the four (M2x4.5) screws that secure the hard drive assembly to the palmrest and keyboard assembly [1].

4. Lift the hard drive from the slot on the palmrest and keyboard assembly [2].

36 Removing and installing components

Installing the hard drive assembly

Steps

1. Align the screw holes on the hard drive assembly with the screw holes on the palm rest and keyboard assembly [1].

2. Replace the four (M2x4.5) screws that secure the hard drive assembly to the palm rest and keyboard assembly [2].

Removing and installing components 37

3. Adhere the tape that secures the hard drive cable to the system board [1].

4. Connect the hard drive cable to the system board [2].

38 Removing and installing components

Next steps

1. Reconnect the battery cable.

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

Coin-cell battery

Removing the coin cell battery

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the base cover.

4. Disconnect the battery cable.

5. Remove the hard drive assembly.

NOTE: Required for systems with 42 Whr battery

6. Remove the IO board.

Steps

1. Flip the I/O board.

2. Using a plastic scribe, gently pry the coin cell battery out of the slot on the I/O board [1].

3. Remove the coin cell battery away from the computer [2].

Removing and installing components 39

Installing the coin cell battery

Steps

1. With the positive-side facing up, insert the coin cell battery into the battery socket on the I/O board [1].

2. Press the battery until it clicks into place [2].

Next steps

1. Replace the IO board

2. Replace the hard drive assembly

3. Reconnect the battery cable.

4. Replace the base cover

5. Replace the SD memory card

6. Follow the procedure in after working inside your computer

Battery

Lithium-ion battery precautions

CAUTION:

●Exercise caution when handling Lithium-ion batteries.

●Discharge the battery completely before removing it. Disconnect the AC power adapter from the system and

operate the computer solely on battery power—the battery is fully discharged when the computer no longer

turns on when the power button is pressed.

●Do not crush, drop, mutilate, or penetrate the battery with foreign objects.

●Do not expose the battery to high temperatures, or disassemble battery packs and cells.

40 Removing and installing components

●Do not apply pressure to the surface of the battery.

●Do not bend the battery.

●Do not use tools of any kind to pry on or against the battery.

●Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental

puncture or damage to the battery and other system components.

●If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing,

bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical

support for assistance. See www.dell.com/contactdell.

●Always purchase genuine batteries from www.dell.com or authorized Dell partners and resellers.

●Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how to

handle and replace swollen Lithium-ion batteries, see Handling swollen Lithium-ion batteries.

Removing the battery

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

Steps

1. Disconnect the battery cable from the system board.

2. Remove the four (M2x3) screws that secure the battery to the palmrest and keyboard assembly [1].

3. Lift the battery off the palmrest and keyboard assembly [2].

Removing and installing components 41

Installing the battery

Steps

1. Align the screw holes on the battery with the screw holes on the palmrest and keyboard assembly [1].

2. Replace the four (M2x3) screws that secure the battery to the palmrest and keyboard assembly [2].

42 Removing and installing components

3. Connect the battery cable to the system board.

Removing and installing components 43

Next steps

1. Replace the base cover

2. Replace the SD memory card

3. Follow the procedure in after working inside your computer

Speakers

Removing the speakers

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery cable.

Steps

1. Disconnect the speaker cable from the system board [1].

2. Unroute and remove the speaker cable from the routing guides on palm rest and keyboard assembly [2].

3. Lift the speakers, along with the cable, off the palm rest and keyboard assembly.

44 Removing and installing components

Installing the speakers

About this task

NOTE: If the rubber grommets are pushed out when removing the speakers, push them back in before replacing the

speakers.

Steps

1. Using the alignment posts and rubber grommets, place the speakers in the slots on the palm rest and keyboard assembly.

Removing and installing components 45

2. Route the speaker cable through the routing guides on the palm rest and keyboard assembly [1].

3. Connect the speaker cable to the system board [2].

46 Removing and installing components

Next steps

1. Reconnect the battery cable.

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

Solid-state drive/Intel Optane memory module

Removing the M.2 2280 Solid-state drive or Intel Optane memory

—Optional

Prerequisites

NOTE: Disable the Intel Optane memory before removing the Intel Optane memory module from your computer. For more

information about disabling the Intel Optane memory, see disabling Intel Optane memory

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery cable.

Steps

1. Remove the single (M2x3) screw that secures the thermal plate to the palmrest and keyboard assembly [1].

Removing and installing components 47

2. Turn the thermal plate over [2].

3. Slide and remove the thermal plate from the solid-state drive/Intel Optane card slot [3].

4. Remove the single (M2x2) screw that secures the solid-state drive/Intel Optane card to the palmrest and keyboard

assembly [1].

5. Slide and lift the solid-state drive/Intel Optane card off the palmrest and keyboard assembly [2].

48 Removing and installing components

Installing the M.2 2280 Solid-state drive or Intel Optane memory -

Optional

Steps

1. Slide and insert the tab solid-state drive/Intel Optane card into the solid-state drive/Intel Optane card slot [1].

2. Replace the single (M2x2) screw that secures the solid-state drive/Intel Optane card to the palmrest and keyboard assembly

[2].

Removing and installing components 49

50 Removing and installing components

3. Align and replace the thermal plate on the solid-state drive/Intel Optane card slot [1,2].

4. Replace the single (M2x3) screw that secures the thermal plate to the palmrest and keyboard assembly [3].

Next steps

1. Reconnect the battery cable.

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

Removing the M.2 Solid-state drive bracket

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery cable

Steps

1. Remove the single (M2x3) screw that secures the solid-state drive bracket to the palmrest and keyboard assembly [1].

2. Remove the solid-state drive bracket from the palmrest and keyboard assembly [2].

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Installing the Solid-state drive bracket

Steps

1. Align and replace the solid-state drive bracket on the palmrest and keyboard assembly [1].

2. Replace the single (M2x3) screw that secures the solid-state drive bracket to the palmrest and keyboard assembly [2].

52 Removing and installing components

Next steps

1. Reconnect the battery cable.

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

Removing the M.2 2230 Solid-state drive

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery cable

Steps

1. Remove the single (M2x3) screw that secures the thermal plate to the palmrest and keyboard assembly [1].

2. Turn the thermal plate over [2].

3. Slide and remove the thermal plate from the solid-state drive slot [3].

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4. Remove the single (M2x2) screw that secures the solid-state drive to the solid-state drive bracket [1].

5. Slide and remove the solid-state drive off the solid-state drive slot [2].

54 Removing and installing components

Installing the M.2 2230 Solid-state drive

Steps

1. Insert the solid-state drive into the solid-state drive slot on the system board [1].

2. Replace the single (M2x3) screw that secures the solid-state drive to the solid-state drive bracket [2].

Removing and installing components 55

3. Align and replace the thermal plate on the solid-state drive [1,2].

4. Replace the single (M2x3) screw that secures the thermal plate to the palmrest and keyboard assembly [3].

56 Removing and installing components

Next steps

1. Reconnect the battery cable.

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

IO board

Removing the IO board

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the base cover.

4. Disconnect the battery.

5. Remove the hard drive assembly.

NOTE: Required for systems with 42 Whr battery

Steps

1. NOTE: Removing the I/O board also removes the coin-cell battery which resets the CMOS settings.

Open the latch and disconnect the I/O board cable from the system board [1].

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2. Peel the I/O-board cable from the palm rest and keyboard assembly [2].

3. Remove the two (M2x3) screws that secure the I/O board to the palm rest and keyboard assembly [1].

4. Lift the I/O board, along with the cable, off the palm rest and keyboard assembly [2].

58 Removing and installing components

Installing the IO board

Steps

1. Using the alignment posts, place the I/O board on the palm rest and keyboard assembly [1].

2. Replace the two (M2x3) screws that secure the I/O board to the palm rest and keyboard assembly [2].

3. Adhere the I/O board cable to the palm rest and keyboard assembly [1].

4. Connect the I/O board cable to the system board and close the latch to secure the cable [2].

Removing and installing components 59

Next steps

1. Replace the hard drive assembly.

NOTE: Required for systems with 42 Whr battery

2. Reconnect the battery.

3. Replace the base cover.

4. Replace the SD memory card.

5. Follow the procedure in after working inside your computer.

Touchpad

Removing the touchpad assembly

Prerequisites

NOTE: For information only, touchpad is included with the palmrest assembly.

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the base cover.

4. Disconnect the battery.

Steps

1. Remove the three (M2x2) screws that secure the touchpad bracket to the palmrest and keyboard assembly [1].

2. Lift the touchpad bracket off the palmrest and keyboard assembly [2], and peel the tape that secures the bracket to the

palmrest.

60 Removing and installing components

3. Open the latch and disconnect the touchpad cable from the system board [1].

4. Peel the tape that secures the touchpad to the palmrest and keyboard assembly [2].

5. Remove the four (M2x2) screws that secure the touchpad to the palmrest and keyboard assembly [1].

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6. Lift the touchpad off the palmrest and keyboard assembly [2].

Installing the touch pad assembly

About this task

NOTE: Ensure that the touch pad is aligned with the guides available on the palm-rest and keyboard assembly, and the gap

on either sides of the touch pad is equal.

Steps

1. Place the touch pad into the slot on the palmrest and keyboard assembly [1].

2. Replace the four (M2x2) screws that secure the touch pad to the palmrest and keyboard assembly [2].

62 Removing and installing components

3. Adhere the tape that secures the touch pad to the palmrest and keyboard assembly [1].

4. Slide the touch pad cable into its connector on the system board and close the latch to secure the cable [2].

Removing and installing components 63

5. Place the touch pad bracket into the slot on the palmrest and keyboard assembly [1].

6. Replace the three screws (M2x2) that secure the touch pad bracket to the palmrest and keyboard assembly [2], and adhere

the tape that secures the bracket to the palmrest.

Next steps

1. Reconnect the battery

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

System fan

Removing the system fan

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the base cover.

4. Remove the battery.

Steps

1. Disconnect the VGA board cable [1], and the display cable [2, 3] from the system board .

64 Removing and installing components

2. Unroute the VGA board cable and the display cable from the routing guides on the fan [1].

3. Disconnect the fan cable from the system board [2].

4. Remove the two (M2x3) screws that secure the fan to the palmrest and keyboard board assembly [1].

Removing and installing components 65

5. Lift the fan off the palmrest and keyboard board assembly [2].

Installing the system fan

Steps

1. Align the screw holes on the fan with the screw holes on to the palm rest and keyboard board assembly [1].

2. Replace the two (M2x3) screws that secure the fan to the palm rest and keyboard board assembly [2].

66 Removing and installing components

3. Connect the fan cable to the system board [1].

4. Route the VGA board cable and the display cable through the routing guides on the fan [2].

Removing and installing components 67

5. Connect the VGA board cable [1], and the display cable [2, 3] to the system board.

Next steps

1. Replace the battery.

2. Replace the base cover.

3. Replace the SD memory card.

4. Follow the procedure in after working inside your computer.

Heat sink

Removing the heatsink—UMA

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the base cover.

4. Disconnect the battery.

Steps

1. Loosen the four captive screws that secure the heatsink to the system board [1].

NOTE: Loosen the screws in the order of the callout numbers [1, 2, 3, 4] as indicated on the heatsink.

2. Lift the heatsink off the system board [2].

68 Removing and installing components

Installing the heatsink—UMA

Steps

1. Place the heatsink on the system board and align the screw holes on the heatsink with the screw holes on the system board

[1].

2. In sequential order (as indicated on the heatsink), tighten the four captive screws that secure the heatsink to the system

board [2].

Removing and installing components 69

Next steps

1. Reconnect the battery

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

Removing the heatsink—discrete

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery

Steps

1. Loosen the seven captive screws that secure the heatsink to the system board [1].

NOTE: Loosen the screws in the order of the callout numbers [1, 2, 3, 4,5,6,7] as indicated on the heatsink.

2. Lift the heatsink off the system board [2].

70 Removing and installing components

Installing the heatsink—discrete

Steps

1. Place the heatsink on the system board and align the screw holes on the heatsink with the screw holes on the system board

[1].

2. In sequential order (as indicated on the heatsink), tighten the seven captive screws that secure the heatsink to the system

board [2].

Removing and installing components 71

Next steps

1. Reconnect the battery

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

VGA daughterboard

Removing the VGA daughterboard

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the base cover.

4. Disconnect the battery.

Steps

1. Disconnect the VGA daughterboard cable from the system board [1].

2. Unroute the VGA board cable from the routing guides on the fan [2].

72 Removing and installing components

3. Remove the two (M2x3) screws that secure the VGA daughterboard to the palmrest and keyboard assembly [1].

4. Lift the VGA daughterboard away from the system [2].

Removing and installing components 73

Installing the VGA daughterboard

Steps

1. Place the VGA daughterboard and align the screw holes on the VGA daughterboard with the screw holes on the palmrest

and keyboard assembly [1].

2. Replace the two (M2x3) screws that secure the VGA daughterboard on the palmrest and keyboard assembly [2].

3. Route the VGA board cable through the routing guides on the fan [1], and then connect the VGA daughterboard cable to the

system board [2].

74 Removing and installing components

Next steps

1. Reconnect the battery

2. Replace the base cover

3. Replace the SD memory card

4. Follow the procedure in after working inside your computer

Power-button board

Removing the power button board with optional fingerprint reader

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the base cover.

4. Disconnect the battery.

5. Remove the system fan.

6. Remove the display assembly.

Steps

1. Open the latch, and disconnect the power button board cable and fingerprint cable from the system [1].

2. Unroute the cables from the palmrest and keyboard assembly [2].

3. Peel the conductive tape off the power button board [3].

Removing and installing components 75

4. Remove the single (M2x3) screw that secures the power button board to the palmrest and keyboard assembly [1].

5. Lift the power button board, along with the cable off the palmrest and keyboard assembly [2].

76 Removing and installing components

Installing the power button board with optional fingerprint reader

Steps

1. Place the power-button board into the slot on the palmrest and keyboard assembly [1].

2. Replace the single (M2x3) screw that secures the power button board to the palmrest and keyboard assembly [2].

3. Affix the conductive tape to the power button board [1].

4. Affix the power button cable to the palmrest and keyboard assembly [2].

5. Slide the power button cable and fingerprint reader cable to the system board and close the latch to secure the cable [3].

Removing and installing components 77

Next steps

1. Replace the display assembly.

2. Replace the system fan.

3. Reconnect the battery.

4. Replace the base cover.

5. Replace the SD memory card.

6. Follow the procedure in after working inside your computer.

System board

Removing the system board

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the base cover.

4. Disconnect the battery.

5. Remove the WLAN.

6. Remove the Memory.

7. Remove the SSD.

8. Remove the system fan.

9. Remove the heatsink.

10. Remove the display assembly.

78 Removing and installing components

Steps

1. Disconnect the following cables from the system board:

a. Power button board [1].

b. Fingerprint reader (optional) [2].

c. IO board [3].

d. Touchpad [4].

e. Keyboard [5].

2. Disconnect the following cables from the system board:

a. DC-in [1, 2].

b. Speaker [3].

Removing and installing components 79

3. Remove the three (M2x3) screws and two (M2x2) screws that secure the system board to the palmrest and keyboard

assembly [1].

4. Lift the system board off the palm-rest and keyboard assembly [2].

80 Removing and installing components

Installing the system board

Steps

1. Align the screw hole on the system board with the screw hole on the palmrest and keyboard assembly [1].

2. Replace the three (M2x3) screws and two (M2x2) screws that secure the system board to the palmrest and keyboard

assembly [2].

Removing and installing components 81

3. Connect the following cables to the system board:

a. DC-in [1, 2].

b. Speaker [3].

82 Removing and installing components

4. Connect the following cables to the system board:

a. Power button board [1].

b. Fingerprint reader (optional) [2].

c. IO board [3].

d. Touchpad [4].

e. Keyboard [5].

Removing and installing components 83

Next steps

1. Replace the display assembly.

2. Replace the heatsink.

3. Replace the system fan.

4. Replace the SSD.

5. Replace the Memory.

6. Replace the WLAN.

7. Reconnect the battery.

8. Replace the base cover.

9. Replace the SD memory card.

10. Follow the procedure in after working inside your computer.

Display assembly

Removing the display assembly

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SD memory card.

3. Remove the base cover.

4. Disconnect the battery.

5. Remove the WLAN.

Steps

1. Peel off the tape securing the wireless antenna from the system board [1].

84 Removing and installing components

2. Disconnect the display cable from the connector on the system board [2, 3].

3. Unroute the display cable from the routing guides on the palmrest and keyboard assembly [1].

4. Remove the six (M2.5x5) screws that secure the left and right hinges to the system board, and palmrest and keyboard

assembly [2].

Removing and installing components 85

5. Lift the palmrest and keyboard assembly at an angle [1].

Note: Do not open the display assembly beyond 135 degrees to avoid damage to the display hinges.

6. Continue to lift the palmrest and keyboard assembly until it separates from the hinges [2].

86 Removing and installing components

7. Slide and remove the palmrest and keyboard assembly off the display assembly.

Removing and installing components 87

8. After performing all the preceding steps, you are left with display assembly.

Installing the display assembly

About this task

NOTE: Ensure that the hinges are opened to the maximum before replacing the display assembly on the palmrest and

keyboard assembly.

Steps

1. Align and place the palmrest and keyboard assembly under the hinges on the display assembly.

88 Removing and installing components

2. Press the hinges down on the system board, and palmrest and keyboard assembly [1].

3. Seat the palmrest and keyboard assembly on the display assembly [2].

Removing and installing components 89

4. Replace the six (M2.5x5) screws that secure the left and right hinges to the system board, and palmrest and keyboard

assembly [1].

5. Route the display cable through the routing guides on the palmrest and keyboard assembly [2].

90 Removing and installing components

6. Affix the antenna cables to the system board [1].

7. Connect the display cable to the connector on the system board [2].

Removing and installing components 91

Next steps

1. Replace the WLAN.

2. Reconnect the battery.

3. Replace the base cover.

4. Replace the SD memory card.

5. Follow the procedure in after working inside your computer.

Display bezel

Removing the display bezel

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery

5. Remove the WLAN

6. Remove the display assembly

Steps

1. Push both sides of the display-hinge cover and lift it from the display back-cover.

2. Use a plastic scribe to carefully pry open the recesses near the left and right hinges on the bottom edge of the display bezel.

NOTE: When prying open the display bezel, ensure to pry along the outside edge of the display bezel using your hands

or plastic scribe. Using a screw driver or other sharp objects may damage the display cover.

92 Removing and installing components

CAUTION: Lift the bezel carefully, as it is attached to the display assembly with a strong adhesive.

3. Lift the bezel off the display assembly.

Removing and installing components 93

Installing the display bezel

Steps

1. Align the display bezel with the display back-cover.

94 Removing and installing components

2. Gently snap the display bezel into place.

Removing and installing components 95

Next steps

1. Replace the display assembly

2. Replace the WLAN

3. Reconnect the battery

4. Replace the base cover

5. Replace the SD memory card

6. Follow the procedure in after working inside your computer

Display panel

Removing the display panel

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery

5. Remove the WLAN

6. Remove the display assembly

7. Remove the display bezel

Steps

1. Remove the six (M2x2) and two (M2x3) screws that secure the display panel to the display back-cover [1].

2. Lift the display panel and turn it over [2].

96 Removing and installing components

3. Peel the tape that secures the display cable to the back of the display panel [1].

4. Lift the latch and disconnect the display cable from the display-panel cable connector [2].

5. Lift the display panel away from the display back-cover [3].

Removing and installing components 97

NOTE: Do not pull and release the Stretch (SR) Tapes from the display panel. There is no need to separate the brackets

from the display panel.

6. After performing all the preceding steps, you are left with the display panel.

98 Removing and installing components

Installing the display panel

Steps

1. Place the display panel on a flat and clean surface.

Removing and installing components 99

2. Connect the display cable to the connector at the back of the display panel and close the latch to secure the cable [1].

3. Adhere the tape that secures the display cable to the back of the display panel [2].

4. Turn the display panel over and place it on the display back-cover [3].

100 Removing and installing components

5. Align the screw holes on the display panel with the screw holes on the display back-cover [1].

6. Replace the six (M2x2) and two (M2x3) screws that secure the display panel to the display back-cover [2].

Removing and installing components 101

Next steps

1. Replace the display bezel

2. Replace the display assembly

3. Replace the WLAN

4. Reconnect the battery

5. Replace the base cover

6. Replace the SD memory card

7. Follow the procedure in after working inside your computer

Display cable

Removing the display cable

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery

5. Remove the WLAN

6. Remove the display assembly

7. Remove the display bezel

8. Remove the display panel

102 Removing and installing components

Steps

1. Remove the camera cable and the display cable from the routing guides on the display back-cover [1,2].

2. Peel the adhesive that secures the camera cable [3].

3. Lift the camera cable and the display cable off the display back-cover.

Removing and installing components 103

Installing the display cable

Steps

1. Place the display cable and camera cable on the display back-cover.

104 Removing and installing components

2. Route the display cable and camera cable through the routing guides on the display back-cover and antenna assembly [1,2].

3. Affix the adhesive that secures the camera cable [3].

Removing and installing components 105

Next steps

1. Replace the display panel

2. Replace the display bezel

3. Replace the display assembly

4. Replace the WLAN

5. Reconnect the battery

6. Replace the base cover

7. Replace the SD memory card

8. Follow the procedure in after working inside your computer

Power-adapter port

Removing the power adapter port

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Remove the battery

5. Remove the WLAN

Steps

1. Disconnect and route the power adapter cable from the system board [1, 2].

2. Remove the single (M2x3) screw that secures the power adapter port to the palmrest and keyboard assembly [3].

3. Lift the power adapter port, along with its cable, off the palmrest and keyboard assembly [4].

106 Removing and installing components

Installing the power adapter port

Steps

1. Place the power adapter port into the slot on the palmrest and keyboard assembly [1].

2. Replace the single (M2x3) screw that secures the power adapter port to the palmrest and keyboard assembly [2].

3. Connect the power adapter cable to the system board [3, 4].

Removing and installing components 107

Next steps

1. Replace the WLAN

2. Replace the battery

3. Replace the base cover

4. Replace the SD memory card

5. Follow the procedure in after working inside your computer

Camera

Removing the camera

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Disconnect the battery

5. Remove the WLAN

6. Remove the display assembly

7. Remove the display bezel

8. Remove the display panel

Steps

1. Using a plastic scribe, gently pry the camera off the display back-cover [1].

2. Disconnect the camera cable from the camera module [2].

3. Lift the camera module from the display back-cover [3].

108 Removing and installing components

Follow the below procedure to remove the camera in systems with the Touch functionality.

4. Peel the tape that secures the camera off the display back-cover [1].

5. Lift the camera module from the display back-cover [2].

Removing and installing components 109

Installing the camera

Steps

1. Connect the camera cable to the camera module [1].

2. Route the camera cable through the routing channels [2].

3. Using the alignment post, adhere the camera module on the display back-cover [3].

110 Removing and installing components

Following is the procedure to install the camera in systems with the Touch functionality.

4. Align and replace the camera module on the display back-cover [1].

5. Adhere the tape that secures the camera off the display back-cover [2].

Removing and installing components 111

Next steps

1. Replace the display panel.

2. Replace the display bezel.

3. Replace the display assembly.

4. Replace the WLAN.

5. Reconnect the battery.

6. Replace the base cover.

7. Replace the SD memory card.

8. Follow the procedure in after working inside your computer.

Palmrest and Keyboard assembly

Removing the palmrest and keyboard

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

3. Remove the base cover

4. Remove the battery

5. Remove the WLAN

6. Remove the display assembly

7. Remove the display bezel

8. Remove the display panel

112 Removing and installing components

Steps

1. Remove the 16 (M2x2) and nine (M2x2.5) screws that secure the metal bracket and keyboard to the palmrest [1].

2. Lift the metal bracket from the palmrest [2].

3. Lift the keyboard from the palmrest [3].

Installing the palmrest and keyboard

Steps

1. Place the keyboard on the palmrest [1].

2. Place the metal bracket on the keyboard and palmrest [2].

3. Replace the 16 (M2x2) and nine (M2x2.5) screws that secure the metal bracket to the keyboard and palmrest [3].

Removing and installing components 113

Next steps

1. Replace the display panel.

2. Replace the display bezel.

3. Replace the display assembly.

4. Replace the WLAN.

5. Replace the battery.

6. Replace the base cover.

7. Replace the SD memory card.

8. Follow the procedure in after working inside your computer.

Palmrest

Removing the palmrest

Prerequisites

1. Follow the procedure in before working inside your computer

2. Remove the SD memory card

114 Removing and installing components

3. Remove the base cover

4. Remove the battery

5. Remove the WLAN

6. Remove the Memory

7. Remove the SSD

8. Remove the hard drive assembly

9. Remove the IO board

10. Remove the touch pad assembly

11. Remove the VGA daughter board

12. Remove the power button board

13. Remove the speakers

14. Remove the system fan

15. Remove the heatsink

16. Remove the system board

17. Remove the display assembly

18. Remove the Keyboard

About this task

After performing the preceding steps, you are left with the palmrest.

NOTE: The power button board is not included with the service replacement palmrest assembly. Ensure the power button

board is replaced onto the service replacement palmrest assembly.

Removing and installing components 115

System setup

Topics:

•BIOS overview

•Entering BIOS setup program

•Navigation keys

•One time boot menu

•System setup

•Boot options

•System configuration

•Video screen options

•Security

•Passwords

•Secure boot

•Expert Key Management

•Performance

•Power management

•Wireless options

•Post behavior

•Virtualization support

•Maintenance

•System logs

•SupportAssist system resolution

•Updating the BIOS

•System and setup password

•Clearing CMOS settings

•Clearing BIOS (System Setup) and System passwords

BIOS overview

The BIOS manages data flow between the computer's operating system and attached devices such as hard disk, video adapter,

keyboard, mouse, and printer.

Entering BIOS setup program

Steps

1. Turn on your computer.

2. Press F2 immediately to enter the BIOS setup program.

NOTE: If you wait too long and the operating system logo appears, continue to wait until you see the desktop. Then,

turn off your computer and try again.

Navigation keys

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

the system.

116 System setup

Table 5. Navigation keys

Keys Navigation

Up arrow Moves to the previous field.

Down arrow Moves to the next field.

Enter Selects a value in the selected field (if applicable) or follow

the link in the field.

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.

One time boot menu

To enter one time boot menu, turn on your computer, and then press F12 immediately.

NOTE: It is recommended to shutdown the computer if it is on.

The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options

are:

●Removable Drive (if available)

●STXXXX Drive (if available)

NOTE: XXX denotes the SATA drive number.

●Optical Drive (if available)

●SATA Hard Drive (if available)

●Diagnostics

The boot sequence screen also displays the option to access the System Setup screen.

System setup

CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program.

Certain changes can make your computer work incorrectly.

NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen

information for future reference.

Use the BIOS Setup program for the following purposes:

●Get information about the hardware installed in your computer, such as the amount of RAM and the size of the hard drive.

●Change the system configuration information.

●Set or change a user-selectable option, such as the user password, type of hard drive installed, and enabling or disabling

base devices.

Boot options

Table 6. General

Option Description

Boot Mode Allows you to change the order in which the computer

attempts to find an operating system.

System setup 117

Table 6. General (continued)

Option Description

The options are:

●Windows Boot Manager

●UEFI Hard Drive

The Boot Sequence window allows you to change the

boot sequence options.

Click one of the following options:

○Add Boot Option

○Remove Boot option

○View

Bios Setup Advanced Mode Allows you to Enable or Disable BIOS Setup Advance mode

settings.

UEFI Boot Path Security Allows you to control whether the system prompts the user to

enter the Admin password when booting to a UEFI boot path.

Click one of the following options:

●Always, Except Internal HDD—Default

●Always

●Never

System configuration

Table 7. System Configuration

Option Description

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

system date and time takes effect immediately.

Enable SMART Reporting This field 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) specification. This option is disabled by default.

Integrated NIC Allows you to configure the integrated network controller.

Click one of the following options:

Enable UEFI Network Stack

If enabled, UEFI networking protocols are installed, allowing

pre-OS and early OS networking features to use enabled

NICs. This maybe used without PXE turned on.

Integrated NIC

●Disabled

●Enabled

●Enabled w/PXE—Default

Enable Audio Allows you to switch all integrated audio On/Off, or enable/

disable the microphone and the internal speaker separately.

The options are:

●Enable Audio

●Enable Microphone

●Enable Internal Speaker

118 System setup

Table 7. System Configuration (continued)

Option Description

This option is enabled by default.

USB Configuration Allows you to enable or disable the internal/integrated USB

configuration.

The options are:

●Enable USB Boot Support

●Enable External USB Ports

All the options are set by default.

NOTE: USB keyboard and mouse always work in the BIOS

setup irrespective of these settings.

SATA Operation Allows you to configure the operating mode of the integrated

SATA hard drive controller.

Click one of the following options:

●Disabled

●AHCI

●RAID—Default

NOTE: SATA is configured to support RAID mode.

Drives Allows you to enable or disable various drives on board.

The options are:

●SATA-0

●M.2 PCIe SSD-0/SATA-2

All the options are set by default.

Miscellaneous devices Allows you to enable or disable various on board devices.

●Enable Camera—Default

●Enable Hard Drive Free Fall Protection—Default

●Enable Secure Digital (SD) Card—Default

●Secure Digital Card (SD) Read-Only Mode

●Secure Digital (SD) Card Boot

Enable USB PowerShare Allows you to On or Off external devices to be powered or

charged using the stored system battery.

Keyboard Illumination This field 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

●Dim

●Bright—Default

Keyboard Backlight Tmeout on AC Allows you to define the timeout value for the keyboard

backlight when an AC adapter is plugged in the system. The

Keyboard Backlight timeout value is only in effect when the

backlight is enabled.

●5 seconds

●10 seconds—Default

●15 seconds

●30 seconds

System setup 119

Table 7. System Configuration (continued)

Option Description

●1 minute

●5 minutes

●15 minutes

●Never

Keyboard Backlight Tmeout on Battery Allows you to define the timeout value for the keyboard

backlight when the system is running only on battery power.

The Keyboard Backlight timeout value is only in effect when

the backlight is enabled.

●5 seconds

●10 seconds—Default

●15 seconds

●30 seconds

●1 minute

●5 minutes

●15 minutes

●Never

Unobtrusive Mode Enable unobtrusive Mode

When On, this option turns off all system light and sound. It is

set to 'OFF' by default.

Touchscreen It allows you to enable or disable the touch screen in the

Operating System. It is set to 'ON' by default.

DellCoreServices This option controls boot time creation of an SSDT ACPI

Virtual Device Table.

Dell Type-C Dock Configuration Allows you to enable or disable Dell Docks configuration

settings.

Video screen options

Table 8. Video

Option Description

LCD Brightness Allows you to set the display brightness depending upon the

power source. On Battery(50% is default) and On AC (100%

default).

Security

Table 9. Security

Option Description

Enable Admin Setup

Lockout

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

●Enable Admin Setup Lockout

This option is not set by default.

Enable CPU XD Support Allows you to enable or disable CPU XD support.

This option is enabled by default.

120 System setup

Table 9. Security (continued)

Option Description

Password Bypass When enabled, it prompts for system and internal hard drive passwords when the system is

powered on from the Off state.

●Disabled—default

●Reboot Bypass

Enable Non-Admin

Password Changes

Allows you to change system and hard drive password.

This option is enabled by default.

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.

●Allow Wireless Switch Changes

This option is not set by default.

Enable UEFI Capsule

Firmware Updates

Allows you to update the system BIOS through UEFI capsule update packages.

●Enable UEFI Capsule Firmware Updates

This option is set by default.

TPM 2.0 Security Allows you to enable or disable the Trusted Platform Module (TPM) during POST.

The options are:

●TPM On—Default

●Clear

●PPI Bypass for Enable Command—Default

●PPI Bypass for Disbale Command

●PPI Bypass for Clear Command

●Attestation Enable—Default

●Key Storage Enable—Default

●SHA-256—Default

PPI Bypass for Enable

Commands

This option controls the TPM Physical Presence Interface.

This option is enabled by default.

PPI Bypass for Disable

Commands

This option controls the TPM Physical Presence Interface.

This option is not set by default.

PPI Bypass for Clear

Commands

This option controls the TPM Physical Presence Interface.

This option is not set by default.

Attestation Enable This option lets you control the TPM endorsement Hierarchy available in the Operating System.

The option restricts the ability to use the TPM for signing and signature operations.

This option is enabled by default.

Key Storage Enable This option lets you control the TPM endorsement Hierarchy available in the Operating System.

The setting restricts the ability to use the TPM for storing owner data.

This option is enabled by default.

SHA-256 This lets you control the SHA-256 configuration options.

This option is enabled by default.

Clear This option lets you clear the TPM owner information.

TPM State This option lets you enable or disable TPM.

System setup 121

Table 9. Security (continued)

Option Description

●Disabled

●Enabled

This option is enabled by default.

Intel Paltform Trust

Technology On

This option lets you control if the Intel Platform Trust Technology feature needs to be visible in

the Operating System.

This option not set by default.

Intel SGX If enabled, it provides a secure environment for running codes and storing information of the

Operating System.

●Disabled

●Enabled

●Software Control—Default

SMM Security

Mitigation

Allows you to enable or disable extra UEFI SMM Security Mitigation protection.

●SMM Security Mitigation

This option is not set by default.

Passwords

Table 10. Passwords

Option Description

Enable Strong

Passwords

Allows you to set strict rules for admin and system passwords.

The option is not set by default.

Password Configuration Allows you to set or change the minimum and maximum characters for Admin and System

password.

●Admin Password Min

●Admin Password Max

●System Password Min

●System Password Max

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

The entries to set password are:

●Enter the old password:

●Enter the new password:

●Confirm new password:

Click OK once you set the password.

NOTE: For the first time login, "Enter the old password:" field is marked to "Not set." Hence,

password has to be set for the first time you login and then you can change or delete the

password.

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

The entries to set password are:

●Enter the old password:

●Enter the new password:

●Confirm new password:

Click OK once you set the password.

122 System setup

Table 10. Passwords (continued)

Option Description

NOTE: For the first time login, "Enter the old password:" field is marked to "Not set." Hence,

password has to be set for the first time you login and then you can change or delete the

password.

Internal HDD-0

Password

Allows you to change the hard drive password.

The entries to set password are:

●Enter the old password:

●Enter the new password:

●Confirm new password:

Enable Master Password

Lockout

This option disables master password support.

The option is not set by default.

Secure boot

Table 11. Secure Boot

Option Description

Enable Secure Boot Allows you to enable or disable the Secure Boot Feature.

●Secure Boot Enable—Default

Secure Boot Mode Changes to the Secure Boot operation mode modifies the

behaviour of Secure Boot to allow evaluation of UEFI driver

signatures.

Choose one of the option:

●Deployed Mode—Default

●Audit Mode

Expert Key Management

Table 12. Expert Key Management

Option Description

Expert Key Management Allows you to enable or disable Expert Key Management.

●Custom Mode Key Management

This option is not set by default.

The Custom Mode Key Management options are:

●PK—Default

●KEK

●db

●dbx

System setup 123

Performance

Table 13. Performance

Option Description

Intel Hyper-Threading Technology Allows you to enable or disable the HyperThreading in the

processor.

This option is set by default.

Intel SpeedStep Allows you to enable or disable the Intel SpeedStep mode of

processor.

●Enable Intel SpeedStep Technology

This option is set by default.

Intel TurboBoost Technology Allows you to enable or disable the Intel TurboBoost mode of

the processor.

●Enable Intel TurboBoost

This option is set by default.

Active Cores This setting enables you to change the number of CPU cores

available to the Operating System.

●All Cores—Default

●1

Enable C-State Control Allows you to enable or disable the additional processor sleep

states.

●C states

This option is set by default.

Power management

Table 14. Power Management

Option Description

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

is connected.

●Wake on AC

This option is not set by default.

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

The options are:

●Disabled—Default

●Every Day

●Weekdays

●Select Days

This option is not set by default.

Peak Shift Allows you to block entering to sleep in operating system environment.

Battery Charge

Configuration

Allows you to select the charging mode for the battery.

The options are:

124 System setup

Table 14. Power Management (continued)

Option Description

●Adaptive—Default

●Standard - Fully charges your battery at a standard rate.

●ExpressCharge- The battery charges over a shorter period using Dell’s fast charging

technology.

●Primarily AC use

●Custom

If Custom Charge is selected, you can also configure 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 Configuration option.

Enable Advanced

Battery Charge

Configuration

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.

Block Sleep This option minimizes AC power usage at times of peak demand.

Wake on LAN/WLAN This option allows the computer to power up from the off state when triggered by a special LAN

signal. Wake-up from the Standby state is unaffected by this setting and must be enabled in the

operating system. This feature only works when the computer is connected to AC power supply.

●Disabled—Default - Does not allow the system to power on by special LAN signals when it

receives a wake-up signal from the LAN or wireless LAN.

●LAN Only - Allows the system to be powered on by special LAN signals.

Enable USB Wake

Support

Allows you to enable USB devices to wake the system from standby.

●Enable USB Wake Support

This option is not set by default.

Wake on Dell USB-C

Dock

When Wake on Dell USB-C Dock is enabled, connecting a Dell USB-C Dock will wake the

system from Standby.

Wireless Radio Control If enabled, this feature sense the connection of the system to a wired network and subsequently

disable the selected wireless radios.

●Control WLAN radio

●Control WWAN radio

Intel Speed Shift

Technology

Allows you to enable or disable the Intel Speed Shift Technology.

●Enabled—Default

Force Lpm And Aspm

Off

Force SATA/USB low-power mode and Active State Power Management (ASPM) off in

manufacturing mode.

Wireless options

Table 15. Wireless

Option Description

Wireless Switch Allows to set the wireless devices that can be controlled by

the wireless switch.

The options are:

●WLAN

●Bluetooth

System setup 125

Table 15. Wireless (continued)

Option Description

All the options are enabled by default.

Wireless Device Enable Allows you to enable or disable the internal wireless devices.

The options are:

●WLAN

●Bluetooth

All the options are enabled by default.

Post behavior

Table 16. POST Behavior

Option Description

Enable Numlock The option specifies if the Numlock function should be enabled when the system boots.

The option is set by default.

Enable Adapter

Warnings

Allows you to enable or disable the system setup (BIOS) warning messages when you use certain

power adapters.

●Enable Adapter Warnings—Default

Extended BIOS POST

Time

Allows you to create an additional preboot delay.

Click one of the following options:

●0 seconds—Default

●5 seconds

●10 seconds

Fastboot Allows you to speed up the boot process by bypassing some of the compatibility steps.

Click one of the following options:

●Minimal

●Thorough—Default

●Auto

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.

●Fn Lock—Default

Click one of the following options:

●Lock Mode Disable/Standard

●Lock Mode Enable/Secondary—Default

Full Screen Logo Allows you to display full screen logo, if your image matches screen resolution.

●Enable Full Screen Logo

This option is not set by default.

Warnings and Errors Allows you to select different options to either stop, prompt and wait for user input, continue

when warnings are detected but pause on errors, or continue when either warnings or errors are

detected during the POST process.

Click one of the following options:

●Prompt on Warnings and Errors—Default

126 System setup

Table 16. POST Behavior (continued)

Option Description

●Continue on Warnings

●Continue on Warnings and Errors

MAC Address Pass-

Through

This feature replaces the external NIC MAC address with the selected MAC address from the

system.

Click one of the following options:

●Passthrough MAC Address—Default

●Integrated NIC 1 MAC Address

●Disabled

Virtualization support

Table 17. Virtualization Support

Option Description

Virtualization This option specifies whether a Virtual Machine Monitor (VMM) can utilize the additional

hardware capabilities provided by the Intel Virtualization technology.

●Enable Intel Virtualization Technology

This option is set by default.

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

capabilities provided by the Intel Virtualization technology for direct I/O.

●Enable VT for Direct I/O

This option is set by default.

Maintenance

Table 18. Maintenance

Option Description

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.

Service Tag Displays the service tag of your computer.

Bios Recovery from

Hard Drive

BIOS Recovery from Hard Drive—This option is set by default. Allows you to recover the

corrupted BIOS from a recovery file on the hard drive or an external USB key.

BIOS Auto-Recovery—Allows you to recover the BIOS automatically.

NOTE: BIOS Recovery from Hard Drive field should be enabled.

Always Perform Integrity Check—Performs integrity check on every boot.

BIOS Auto-Recovery Allows you to automatically recover BIOS without any user action.

●Allow BIOS Downgrade

This option is not set by default.

Start Data Wipe Allows you to securely erase data from all internal storage devices.

●Wipe on Next Boot

System setup 127

Table 18. Maintenance (continued)

Option Description

This option is not set by default.

System logs

Table 19. System Logs

Option Description

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

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

SupportAssist system resolution

Table 20. SupportAssist System Resolution

Option Description

Dell Auto OS Recovery

Threshold

This option controls the automatic boot flow for SupportAssist System Resolution console and for

Dell OS recovery Tool.

Click one of the options below:

●OFF

●1

●2—Default

●3

Updating the BIOS

Updating the BIOS in Windows

About this task

CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it

will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the

system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an

unnecessary operating system re-install. For more information on this subject, see Knowledge Article: https://

www.dell.com/support/article/sln153694

Steps

1. Go to www.dell.com/support.

2. Click Product support. In the Search support box, enter the Service Tag of your computer, and then click Search.

NOTE: If you do not have the Service Tag, use the SupportAssist feature to automatically identify your computer. You

can also use the product ID or manually browse for your computer model.

3. Click Drivers & Downloads. Expand Find drivers.

4. Select the operating system installed on your computer.

5. In the Category drop-down list, select BIOS.

6. Select the latest version of BIOS, and click Download to download the BIOS file for your computer.

128 System setup

7. After the download is complete, browse the folder where you saved the BIOS update file.

8. Double-click the BIOS update file icon and follow the on-screen instructions.

For more information, see knowledge base article 000124211 at www.dell.com/support.

Updating the BIOS in Linux and Ubuntu

To update the system BIOS on a computer that is installed with Linux or Ubuntu, see the knowledge base article 000131486 at

www.dell.com/support.

Updating the BIOS using the USB drive in Windows

About this task

CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it

will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the

system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an

unnecessary operating system re-install. For more information on this subject, see Knowledge Article: https://

www.dell.com/support/article/sln153694

Steps

1. Follow the procedure from step 1 to step 6 in Updating the BIOS in Windows to download the latest BIOS setup program file.

2. Create a bootable USB drive. For more information, see the knowledge base article 000145519 at www.dell.com/support.

3. Copy the BIOS setup program file to the bootable USB drive.

4. Connect the bootable USB drive to the computer that needs the BIOS update.

5. Restart the computer and press F12 .

6. Select the USB drive from the One Time Boot Menu.

7. Type the BIOS setup program filename and press Enter.

The BIOS Update Utility appears.

8. Follow the on-screen instructions to complete the BIOS update.

Updating the BIOS from the F12 One-Time boot menu

Update your computer BIOS using the BIOS update.exe file that is copied to a FAT32 USB drive and booting from the F12

One-Time boot menu.

About this task

CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it

will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the

system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an

unnecessary operating system re-install. For more information on this subject, see Knowledge Article: https://

www.dell.com/support/article/sln153694

BIOS Update

You can run the BIOS update file from Windows using a bootable USB drive or you can also update the BIOS from the F12

One-Time boot menu on the computer.

Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12

One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the

BIOS supports this BIOS update option.

NOTE: Only computers with BIOS Flash Update option in the F12 One-Time boot menu can use this function.

Updating from the One-Time boot menu

To update your BIOS from the F12 One-Time boot menu, you need the following:

System setup 129

●USB drive formatted to the FAT32 file system (key does not have to be bootable)

●BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive

●AC power adapter that is connected to the computer

●Functional computer battery to flash the BIOS

Perform the following steps to perform the BIOS update flash process from the F12 menu:

CAUTION: Do not turn off the computer during the BIOS update process. The computer may not boot if you turn

off your computer.

Steps

1. From a turn off state, insert the USB drive where you copied the flash into a USB port of the computer.

2. Turn on the computer and press F12 to access the One-Time Boot Menu, select BIOS Update using the mouse or arrow keys

then press Enter.

The flash BIOS menu is displayed.

3. Click Flash from file.

4. Select external USB device.

5. Select the file and double-click the flash target file, and then click Submit.

6. Click Update BIOS. The computer restarts to flash the BIOS.

7. The computer will restart after the BIOS update is completed.

System and setup password

Table 21. System and setup password

Password type Description

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

Setup password Password that you must enter to access and make changes to

the BIOS settings of your computer.

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

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

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

NOTE: System and setup password feature is disabled.

Assigning a system setup password

Prerequisites

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

About this task

To enter the system setup, press F12 immediately after a power-on or reboot.

Steps

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

The Security screen is displayed.

2. Select System/Admin Password and create a password in the Enter the new password field.

Use the following guidelines to assign the system password:

●A password can have up to 32 characters.

●At least one special character: ! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ^ _ ` { | }

●Numbers 0 through 9.

130 System setup

●Upper case letters from A to Z.

●Lower case letters from a to z.

3. Type the system password that you entered earlier in the Confirm new password field and click OK.

4. Press Esc and save the changes as prompted by the pop-up message.

5. Press Y to save the changes.

The computer restarts.

Deleting or changing an existing system setup password

Prerequisites

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.

About this task

To enter the System Setup, press F12 immediately after a power-on or reboot.

Steps

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, update, or delete the existing system password, and press Enter or Tab.

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

NOTE: If you change the System and/or Setup password, reenter the new password when prompted. If you delete the

System and/or Setup password, confirm the deletion when prompted.

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 restarts.

Clearing CMOS settings

About this task

CAUTION: Clearing CMOS settings will reset the BIOS settings on your computer.

Steps

1. Remove the base cover.

2. Disconnect the battery cable from the system board.

3. Remove the coin-cell battery.

4. Wait for one minute.

5. Replace the coin-cell battery.

6. Connect the battery cable to the system board.

7. Replace the base cover.

Clearing BIOS (System Setup) and System passwords

About this task

To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell.

System setup 131

NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying

Windows or your application.

132 System setup

Troubleshooting

Topics:

•Handling swollen Lithium-ion batteries

•Dell SupportAssist Pre-boot System Performance Check diagnostics

•Built-in self-test (BIST)

•Diagnostic LED

•Battery status LED

•Recovering the operating system

•Real-Time Clock (RTC Reset)

•Backup media and recovery options

•WiFi power cycle

•Drain residual flea power (perform hard reset)

Handling swollen Lithium-ion batteries

Like most laptops, Dell laptops use lithium-ion batteries. One type of lithium-ion battery is the lithium-ion polymer battery.

Lithium-ion polymer batteries have increased in popularity in recent years and have become standard in the electronics industry

due to customer preferences for a slim form factor (especially with newer ultra-thin laptops) and long battery life. Inherent to

lithium-ion polymer battery technology is the potential for swelling of the battery cells.

Swollen battery may impact the performance of the laptop. To prevent possible further damage to the device enclosure or

internal components leading to malfunction, discontinue the use of the laptop and discharge it by disconnecting the AC adapter

and letting the battery drain.

Swollen batteries should not be used and should be replaced and disposed of properly. We recommend contacting Dell product

support for options to replace a swollen battery under the terms of the applicable warranty or service contract, including options

for replacement by a Dell authorized service technician.

The guidelines for handling and replacing Lithium-ion batteries are as follows:

●Exercise caution when handling Lithium-ion batteries.

●Discharge the battery before removing it from the system. To discharge the battery, unplug the AC adapter from the system

and operate the system only on battery power. When the system will no longer power on when the power button is pressed,

the battery is fully discharged.

●Do not crush, drop, mutilate, or penetrate the battery with foreign objects.

●Do not expose the battery to high temperatures, or disassemble battery packs and cells.

●Do not apply pressure to the surface of the battery.

●Do not bend the battery.

●Do not use tools of any type to pry on or against the battery.

●If a battery gets stuck in a device as a result of swelling, do not try to free it as puncturing, bending, or crushing a battery

can be dangerous.

●Do not attempt to reassemble a damaged or swollen battery into a laptop.

●Swollen batteries that are covered under warranty should be returned to Dell in an approved shipping container (provided

by Dell)—this is to comply with transportation regulations. Swollen batteries that are not covered under warranty should be

disposed of at an approved recycling center. Contact Dell product support at https://www.dell.com/support for assistance

and further instructions.

●Using a non-Dell or incompatible battery may increase the risk of fire or explosion. Replace the battery only with a

compatible battery purchased from Dell that is designed to work with your Dell computer. Do not use a battery from other

computers with your computer. Always purchase genuine batteries from https://www.dell.com or otherwise directly from

Dell.

Lithium-ion batteries can swell for various reasons such as age, number of charge cycles, or exposure to high heat. For more

information on how to improve the performance and lifespan of the laptop battery and to minimize the possibility of occurrence

of the issue, see Dell Laptop Battery - Frequently Asked Questions.

Troubleshooting 133

Dell SupportAssist Pre-boot System Performance

Check diagnostics

About this task

SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell

SupportAssist Pre-boot System Performance Check diagnostics 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

NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer

terminal when the diagnostic tests are performed.

For more information, see https://www.dell.com/support/kbdoc/000180971.

Running the SupportAssist Pre-Boot System Performance Check

Steps

1. Turn on your 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.

4. Click the arrow at the bottom left corner.

Diagnostics front page is displayed.

5. Click 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 specific 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.

Built-in self-test (BIST)

M-BIST

M-BIST (Built In Self-Test) is the system board's built-in self-test diagnostics tool that improves the diagnostics accuracy of

system board embedded controller (EC) failures.

NOTE: M-BIST can be manually initiated before POST (Power On Self Test).

How to run M-BIST

NOTE: M-BIST must be initiated on the system from a power-off state either connected to AC power or with battery only.

1. Press and hold both the M key on the keyboard and the power button to initiate M-BIST.

2. With both the M key and the power button held down, the battery indicator LED may exhibit two states:

a. OFF: No fault detected with the system board

b. AMBER: Indicates a problem with the system board

3. If there is a failure with the system board, the battery status LED will flash one of the following error codes for 30 seconds:

134 Troubleshooting

Table 22. LED error codes

Blinking Pattern Possible Problem

Amber White

2 1 CPU Failure

2 8 LCD Power Rail Failure

1 1 TPM Detection Failure

2 4 Unrecoverable SPI Failure

4. If there is no failure with the system board, the LCD will cycle through the solid color screens described in the LCD-BIST

section for 30 seconds and then power off.

LCD Power rail test (L-BIST)

L-BIST is an enhancement to the single LED error code diagnostics and is automatically initiated during POST. L-BIST will check

the LCD power rail. If there is no power being supplied to the LCD (i.e., the L-BIST circuit fails), the battery status LED will flash

either an error code [2,8] or an error code [2,7].

NOTE: If L-BIST fails, LCD-BIST cannot function as no power will be supplied to the LCD.

How to invoke L-BIST Test:

1. Press the power button to start the system.

2. If the system does not start up normally, look at the battery status LED:

●If the battery status LED flashes an error code [2,7], the display cable may not be connected properly.

●If the battery status LED flashes an error code [2,8], there is a failure on the LCD power rail of the system board, hence

there is no power supplied to the LCD.

3. For cases, when a [2,7] error code is shown, check to see if the display cable is properly connected.

4. For cases when a [2,8] error code is shown, replace the system board.

LCD Built-in Self Test (BIST)

Dell laptops have a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent

problem with the LCD (screen) of the Dell laptop or with the video card (GPU) and PC settings.

When you notice screen abnormalities like flickering, distortion, clarity issues, fuzzy or blurry image, horizontal or vertical lines,

color fade etc., it is always a good practice to isolate the LCD (screen) by running the Built-In Self Test (BIST).

How to invoke LCD BIST Test

1. Power off the Dell laptop.

2. Disconnect any peripherals that are connected to the laptop. Connect only the AC adapter (charger) to the laptop.

3. Ensure that the LCD (screen) is clean (no dust particles on the surface of the screen).

4. Press and hold D key and Power on the laptop to enter LCD built-in self test (BIST) mode. Continue to hold the D key, until

the system boots up.

5. The screen will display solid colors and change colors on the entire screen to white, black, red, green, and blue twice.

6. Then it will display the colors white, black and red.

7. Carefully inspect the screen for abnormalities (any lines, fuzzy color or distortion on the screen).

8. At the end of the last solid color (red), the system will shut down.

NOTE: Dell SupportAssist Pre-boot diagnostics upon launch, initiates an LCD BIST first, expecting a user intervention

confirm functionality of the LCD.

Troubleshooting 135

Diagnostic LED

This section details the diagnostic features of the battery LED.

Instead of beep codes, errors are indicated through the bicolor Battery Charge/Status LED. A specific blink pattern is followed

by flashing a pattern of flashes in amber, followed by white. The pattern then repeats.

NOTE: The diagnostic pattern consists of a two-digit number being represented by a first group of LED blinks (1–9) in

amber, followed by a 1.5 s pause with the LED off, and then a second group of LED blinks (1–9) in white. This is then

followed by a three second pause, with the LED off, before repeating over again. Each LED blink takes 0.5 s.

The system will not shut down when displaying the Diagnostic Error Codes.

Diagnostic Error Codes always supersede any other use of the LED. For instance, on Notebooks, battery codes for Low Battery

or Battery Failure situations will not be displayed when Diagnostic Error Codes are being displayed.

Table 23. Diagnostic LED

Blinking Pattern Possible Problem Suggested Resolution

Amber White

2 1 CPU failure Replace the system board.

2 2 System Board failure (included BIOS corruption or

ROM error)

Flash latest BIOS version. If problem persists,

replace the system board.

2 3 No Memory/ RAM detected Confirm that the memory module.. is installed

properly. If problem persists, replace the

memory module

2 4 Memory/RAM failure Replace the memory module.

2 5 Invalid memory installed Replace the memory module.

2 6 System board/Chipset Error/Clock failure/Gate

A20 failure/Super I/O failure/Keyboard controller

failure

Replace the system board.

2 7 LCD communication failure Replace the LVDS (Low-Voltage Differential

Signaling) component.

2 8 No power supply to the LCD due to LCD power rail

failure

Replace the system board.

3 1 RTC power failure Replace the CMOS battery.

3 2 PCI or Video card/chip failure Replace the system board.

3 3 BIOS Recovery image not found Flash latest BIOS version. If problem persists,

replace the system board.

3 4 BIOS Recovery image found but invalid Flash latest BIOS version. If problem persists,

replace the system board.

3 5 EC ran into power sequencing failure. Flash latest BIOS version. If problem persists,

replace the system board.

3 6 Flash corruption detected by SBIOS Flash latest BIOS version. If problem persists,

replace the system board.

3 7 Timeout waiting on ME to reply to HECI message Flash latest BIOS version. If problem persists,

replace the system board.

136 Troubleshooting

Battery status LED

Table 24. Battery status LED

Power Source LED behavior System Power State Battery Charge Level

AC Adapter Solid White S0 0-100%

AC Adapter Solid White S4/S5 < Fully Charged

AC Adapter Off S4/S5 Fully Charged

Battery Amber S0 < = 10%

Battery Off S0 > 10%

Battery Off S4/S5 0-100%

●S0 (ON) — System is turned on.

●S4— The system consumes the least power compared to all other sleep states. The system is almost at an OFF state,

expect for a trickle power. The context data is written to hard drive.

●S5 (OFF) — The system is in a shutdown state.

Recovering the operating system

When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell

SupportAssist OS Recovery.

Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows operating

system. It consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating

system. It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its

factory state.

You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their

primary operating system due to software or hardware failures.

For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at

www.dell.com/serviceabilitytools. Click SupportAssist and then, click SupportAssist OS Recovery.

Real-Time Clock (RTC Reset)

The Real Time Clock (RTC) reset function allows you or the service technician to recover Dell systems from No POST/No

Power/No Boot situations. The legacy jumper enabled RTC reset has been retired on these models.

Start the RTC reset with the system powered off and connected to AC power. Press and hold the power button for 20 seconds.

The system RTC Reset occurs after you release the power button.

Backup media and recovery options

It is recommended to create a recovery drive to troubleshoot and fix problems that may occur with Windows. Dell proposes

multiple options for recovering Windows operating system on your Dell PC. For more information. see Dell Windows Backup

Media and Recovery Options.

WiFi power cycle

About this task

If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be

performed. The following procedure provides the instructions on how to conduct a WiFi power cycle:

Troubleshooting 137

NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.

Steps

1. Turn off your computer.

2. Turn off the modem.

3. Turn off the wireless router.

4. Wait for 30 seconds.

5. Turn on the wireless router.

6. Turn on the modem.

7. Turn on your computer.

Drain residual flea power (perform hard reset)

About this task

Flea power is the residual static electricity that remains in the computer even after it has been powered off and the battery is

removed.

For your safety, and to protect the sensitive electronic components in your computer, you are requested to drain residual flea

power before removing or replacing any components in your computer.

Draining residual flea power, also known as a performing a "hard reset", is also a common troubleshooting step if your computer

does not power on or boot into the operating system.

To drain residual flea power (perform a hard reset)

Steps

1. Turn off your computer.

2. Disconnect the power adapter from your computer.

3. Remove the base cover.

4. Remove the battery.

5. Press and hold the power button for 20 seconds to drain the flea power.

6. Install the battery.

7. Install the base cover.

8. Connect the power adapter to your computer.

9. Turn on your computer.

NOTE: For more information about performing a hard reset, see the knowledge base article 000130881 at

www.dell.com/support.

138 Troubleshooting

Getting help

Topics:

•Contacting Dell

Contacting Dell

Prerequisites

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

slip, bill, or Dell product catalog.

About this task

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:

Steps

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.

Getting help 139

Table of Contents

DELL 3400 User Manual

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