Dell Latitude 7400 Service Manual Regulatory Model: P100G Regulatory Type: P100G001 September 2021 Rev.
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. © 2016 - 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: Working on your computer........................................................................................... 6 Safety instructions.............................................................................................................................................................. 6 Before working inside your computer....................................................................................................................... 6 Safety precautions...................
Installing the power adapter port............................................................................................................................ 39 Speakers.............................................................................................................................................................................. 40 Removing the speakers..............................................................................................................................................
System setup options....................................................................................................................................................... 91 General options.............................................................................................................................................................91 System configuration..............................................................................................................................................
1 Working on your computer Topics: • Safety instructions Safety instructions Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions exist: ● You have read the safety information that shipped with your computer. ● A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.
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. Safety precautions The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
● Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not provide adequate protection. Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increased sensitivity to ESD damage. ● Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and workbench pads.
Transporting sensitive components When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. Lifting equipment Adhere to the following guidelines when lifting heavy weight equipment: CAUTION: Do not lift greater than 50 pounds. Always obtain additional resources or use a mechanical lifting device. 1. 2. 3. 4. 5. Get a firm balanced footing.
2 Technology and components This chapter details the technology and components available in the system. Topics: • • • USB features USB Type-C HDMI 1.4a 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.
● 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.
USB Type-C USB Type-C is a new, tiny physical connector. The connector itself can support various exciting new USB standards like USB 3.1 and USB power delivery (USB PD). Alternate Mode USB Type-C is a new connector standard that is very small. It is 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.
Thunderbolt 3 over USB Type-C Thunderbolt 3 brings Thunderbolt to USB Type-C at speeds up to 40 Gbps, creating one compact port that does it all delivering the fastest, most versatile connection to any dock, display or data device like an external hard drive. Thunderbolt 3 uses a USB Type-C connector/port to connect to supported peripherals. 1. 2. 3. 4. Thunderbolt 3 uses USB Type-C connector and cables - It is compact and reversible Thunderbolt 3 supports speed up to 40 Gbps DisplayPort 1.
● Automotive Connection System - New cables and connectors for automotive video systems, designed to meet the unique demands of the motoring environment while delivering true HD quality. Advantages of HDMI ● Quality HDMI transfers uncompressed digital audio and video for the highest, crispest image quality. ● Low-cost HDMI provides the quality and functionality of a digital interface while also supporting uncompressed video formats in a simple, cost-effective manner.
3 Major components of your system 1. Base cover 2.
3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 16 Heatsink assembly Memory System board Coin-cell Solid state drive Battery Speakers Smart card reader Touchpad button board LED daughterboard Display assembly Palmrest assembly WLAN card WWAN card 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.
4 Removing and installing components NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
2. Use a plastic scribe to pry the base cover at the indents near the left and right hinges [1]. 3. Work along the edges to separate the base cover from the computer [2].
4. Lift and remove the base cover from the computer.
Installing the base cover 1. Align and place the base cover on the computer. 2. Press along the edges of the base cover until it clicks into the palmrest assembly.
3. Tighten the eight captive screws to secure the base cover to the computer.
Follow the procedure 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.
Installing the battery 1. Align and place the battery in the computer [1]. 2. Tighten the two captive screws [2] to secure the battery (4-Cell) to the computer. NOTE: A 3-Cell battery has single captive screw that secures the battery to the computer. 3. Connect the battery cable to its connector on the system board [3].
1. Install the base cover. 2. Follow the procedure after working inside your computer. Coin cell Removing the coin cell 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 1. Disconnect the LED daughterboard cable from the connector on the system board [1]. 2. Peel back the LED daughterboard cable from over the coin cell [2].
3. Disconnect the coin cell cable from the connector on the system board [1]. 4. Remove the coin cell from the computer [2].
Installing the coin cell 1. Connect the coin cell cable to its connector on the system board [1] and adhere the coin cell to the palmrest [2].
2. Connect the LED board cable to the system board [1] and route the ribbon cable over the coin cell [2].
1. Install the battery. 2. Install the base cover. 3. Follow the procedure after working inside your computer. Memory Removing the memory 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 1. Pry the clips securing the memory module until the memory module pops-up [1]. 2. Lift the memory module away from the connector [2]. Installing the memory Insert the memory module on the memory connector until the clips secure the memory module.
1. Install the battery. 2. Install the base cover. 3. Follow the procedure after working inside your computer. Solid state drive Removing the solid state drive 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 1. NOTE: This procedure illustrates a M.2 2280 SSD. M.2 2230 SSD is secured to the palmrest with special bracket and plate. Loosen the three captive screws that secure the SSD bracket to the palmrest [1]. 2.
3. Slightly lift and remove the SSD out from its connector on the system board.
Installing the solid state drive 1. Place the SSD on its slot and slide it to its connector on the system board. 2. Place the SSD plate pre-installed with thermal sticker on the underside over the SSD [1]. 3. Tighten the three captive screws to secure the SSD bracket to the palmrest [2].
NOTE: This procedure illustrates a M.2 2280 SSD. M.2 2230 SSD requires a special bracket and plate to secure it to the palmrest assembly. 1. Install the battery. 2. Install the base cover. 3. Follow the procedure after working inside your computer. WLAN card Removing the WLAN card 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 1. Remove the single (M2x3) screw that secures the metal bracket to the WLAN card [1]. 2.
Installing the WLAN card 1. Insert the WLAN card into its slot on the system board [1]. 2. Connect the antennae cables to the connectors on the WLAN card [2]. 3. Place the metal bracket over the antennae connectors [3]. 4. Replace the single (M2x3) screw to secure the metal bracket to the WLAN card and the system board [4].
1. Install the battery. 2. Install the base cover. 3. Follow the procedure after working inside your computer. WWAN card Removing the WWAN card 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 1. Remove the single (M2x3) screw that secures the metal bracket to the WWAN card [1]. 2. Remove the metal bracket [2] and disconnect the antennae cables from the connectors on the WWAN card [3]. 3.
Installing the WWAN card 1. Place the WWAN card into its connector on the system board [1]. 2. Connect the antennae cables to the connectors on WWAN card [2]. 3. Place the metal bracket over the antennae connectors on the WWAN card [3]. 4. Replace the single (M2x3) screw to secure the metal bracket to the WWAN card and the system board [4].
1. Install the battery. 2. Install the base cover. 3. Follow the procedure after working inside your computer. Heatsink Removing the heatsink fan assembly 1. 2. 3. 4. 1. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the WWAN card. NOTE: Heatsink and Fan are separately orderable parts. Disconnect the fan cable from the connector on the system board [1]. 2.
4. Remove the single screw securing the fan to heatsink. Installing the heatsink assembly 1. NOTE: Heatsink and Fan are separately orderable parts. Install the single screw securing the fan to the heatsink.
2. Place the heatsink fan assembly in the computer [1]. 3. Replace the two (M2x3) screws in sequence (2 > 1) on fan case and four (M2x3) screws in sequence (4 > 3 > 2 > 1) on the heatsink fan assembly [1]. 4. Connect the fan cable to the system board [2]. 1. 2. 3. 4. 38 Install the WWAN card. Install the battery. Install the base cover. Follow the procedure after working inside your computer.
Power adapter port Removing the power adapter port 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 1. Remove the single (M2x3) screw from the metal bracket on the power adapter port [1]. 2. Remove the metal bracket that secures the power adapter port [2]. 3. Disconnect the power adapter port cable from the system board [1]. 4. Lift and remove the power adapter port from its slot in the palmrest [2]. Installing the power adapter port 1.
3. Replace the metal bracket over the power adapter port [1]. 4. Replace the single (M2x3) screw to secure the power adapter port to the palmrest assembly [2]. 1. Install the battery. 2. Install the base cover. 3. Follow the procedure after working inside your computer. Speakers Removing the speakers 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 1. Disconnect the speaker cable from its connector on the system board [1]. 2.
4. Remove the four (M2x3) screws securing the speakers to the palmrest assembly [1]. 5. Lift and remove the speakers from the palmrest assembly [2].
Installing the speakers 1. Align and place the speakers into the palmrest assembly [1]. 2. Replace the four (M2x3) screws to secure the speakers to the palmrest assembly [2].
3. Adhere the tape to secure the speaker cable on the touchpad button board [1]. 4. Route the speaker cable [2] and connect the speaker cable to the connector on the system board [3].
1. Install the battery. 2. Install the base cover. 3. Follow the procedure after working inside your computer. LED board Removing the LED daughterboard 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 1. Disconnect the LED board ribbon cable from the connector on the system board [1]. 2. Remove the single (M2x3) screw [2] and lift the LED daughterboard from the palmrest assembly [3].
Installing the LED daughterboard 1. Align and place the LED daughterboard on the palmrest assembly [1]. 2. Replace the single (M2x3) screw securing the LED daughterboard to the palmrest assembly [2]. 3. Connect the LED daughterboard ribbon cable to the system board [3].
1. 2. 3. 4. Connect the speaker cable Install the battery. Install the base cover. Follow the procedure after working inside your computer. Touchpad button board Removing the touchpad button board 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the speaker. 1. Disconnect the touchpad button board cable from the touchpad module [1]. 2. Remove the two (M2x2.5) screws that secures touchpad button board to the palmrest assembly [2].
Installing the touchpad button board 1. Place the touchpad button board on the palmrest assembly [1]. 2. Replace the two (M2x2.5) screws to secure it to the palmrest assembly [2]. 3. Connect the touch pad button board cable to the touchpad module [3].
1. 2. 3. 4. Install the speaker. Install the battery. Install the base cover. Follow the procedure after working inside your computer. Smart card reader Removing the smart card reader 1. 2. 3. 4. 5. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the SSD. Remove the speaker. 1. Disconnect the smart card reader cable from the USH board [1]. 2. Disconnect the touchpad button cable from the tocuhpad module [2]. 3. Remove the four (M2x2.
Installing the smart card reader 1. Replace the smart card reader into its slot on the palmrest assembly [1]. 2. Replace the four (M2x2.5) screws securing it to the palmrest assembly [2]. 3. Connect the touchpad button board cable to the touchpad module [3]. 4. Connect the smart card reader cable to the USH board [4].
1. 2. 3. 4. 5. Install the speakers. Install the SSD. Install the battery. Install the base cover. Follow the procedure after working inside your computer. Display assembly Removing the display assembly 1. Follow the procedure in before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 1. Remove the single (M2x4) screw [1] that secures the display cable metal bracket to the system board. 2.
3. Lift the display cable [1] and unroute it from the metal bracket on the system board [2]. 4. Open the display lid 180 degrees.
5. Remove the six (M2.5x4) screws [1] and remove the display assembly from the palmrest assembly [2].
Installing the display assembly 1. Replace the display assembly aligning the screw holes on the hinges with the screw holes on the palmrest assembly [1]. 2. Replace the six (M2.5x3.5) screws [2] to secure the display assembly to the computer [2]. 3. Close the LCD lid.
4. Route the display cable through the metal bracket [1] and place it on the system board [2]. 5. Connect the display cable to the connector on the system board [1]. 6. Install the display cable metal bracket [2] above the display cable connector and secure it the system board using a single (M2x3) screw [3].
1. Install the battery. 2. Install the base cover. 3. Follow the procedure after working inside your computer. Hinge caps Removing the hinge cap 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the display assembly. 1. Open the hinges to 90 degrees to the display assembly [1]. 2. Slide the hinge cap towards the right hinge and lift it away from the display assembly [2].
Installing the hinge cap 1. Slide the hinge cap towards the left hinge until it click locks on the display assembly [1]. 2. Close the hinges to 180 degrees to the display assembly [2].
1. 2. 3. 4. Install the display assembly Install the battery. Install the base cover. Follow the procedure after working inside your computer. Display hinges Removing the hinges 1. 2. 3. 4. 5. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the display assembly. Remove the hinge cap. 1. Unroute the antennae and display cable away from the hinges.
2. Remove the four (M2.5x5) screws [1] securing the hinges to the display assembly. 3. Lift and remove the hinges from the display back cover assembly [2].
Installing the hinges 1. Align and place the hinges on the display assembly [1]. 2. Replace the four (2.5x5) screws to secure hinges to the display back cover assembly [2].
3. Route the antennae and display cable along the hinges.
1. 2. 3. 4. 5. Install the hinge cap Install the display assembly Install the battery. Install the base cover. Follow the procedure after working inside your computer. Display Bezel Removing the display bezel 1. 2. 3. 4. 5. 6. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the display assembly. Remove the hinge cap. Remove the hinges. 1. Use a plastic scribe to pry at the indents on the bottom of display assembly beside the hinges [1]. 2.
Installing the display bezel Place the display bezel on the display assembly and press along the edges to click lock it to the display back cover. 1. 2. 3. 4. 5. 6. Install the hinges. Install the hinge cap Install the display assembly Install the battery. Install the base cover. Follow the procedure after working inside your computer. Display Panel Removing the display panel 1. 2. 3. 4. 5. 6. 7. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery.
2. 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. Peel back the tape [1] and flip open the latch [2] to disconnect the EDP cable from the display panel [3].
Installing the display panel 1. Connect the EDP cable to the connector on the display panel [1] and close the actuator to secure the connector [2]. 2. Adhere the adhesive tape over the EDP connector on the display panel [3] and flip over the display panel on the back cover [4].
3. Install the four (M2x2.5) screws [2] on the display panel to secure it to the back cover.
1. 2. 3. 4. 5. 6. 7. Install the display bezel. Install the hinges. Install the hinge cap Install the display assembly Install the battery. Install the base cover. Follow the procedure after working inside your computer. Camera—microphone module Removing the camera—microphone module 1. 2. 3. 4. 5. 6. 7. 8. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the display assembly. Remove the hinge cap. Remove the hinges. Remove the display bezel.
1. 2. 3. 4. 5. 6. 7. 8. Install the display panel. Install the hinges. Install the display bezel. Install the hinge cap Install the display assembly Install the battery. Install the base cover. Follow the procedure after working inside your computer. Display Cable Removing the display cable 1. 2. 3. 4. 5. 6. 7. 8. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the display assembly. Remove the hinge cap. Remove the display bezel.
Installing the display cable 1. Adhere the display cable along the routing channel on the display back cover assembly [1] . 2. Connect the display cable to the camera microphone module and replace the tape on the connector [2].
1. 2. 3. 4. 5. 6. 7. 8. Install the display panel. Install the hinges. Install the display bezel. Install the hinge cap Install the display assembly Install the battery. Install the base cover. Follow the procedure after working inside your computer. System board Removing the system board 1. 2. 3. 4. 5. 6. 7. 8. 9. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the memory. Remove the SSD. Remove the WLAN card.
3. Disconnect the display cable [1] and unroute it from the metal bracket on the system board [2]. 4. Remove the single (M2x4) screw [1] and remove the metal bracket over the WWAN Darwin antennae cable [2]. 5. Disconnect the power button (with finger print reader) cable from the system board [1]. 6. Disconnect the WWAN Darwin antennae cables [2] from the system board.
7. Remove the two (M2x4) screws [1] and lift up the USB Type-C bracket from the system board [2]. 8. Disconnect the coin cell [1], speaker cable [2] and the LED daughterboard cable [3] from the system board.
9. Disconnect the USH daughterboard [1] and touchpad cables [2] from the system board.
10. Remove the two (M2x2.5) screws on the DDR ESD bracket [1] and lift to remove it from the system board [2].
11. Remove the two (M2x4) screws [1] and remove the system board from the palmrest assembly [2]. NOTE: For models shipped with a fingerprint reader or WWAN antennas, there are three (M2x3) screws securing the system board to the computer.
Installing the system board 1. Align and place the system board in the palmrest assembly [1] 2. Replace the two (M2x4) screws on the system board securing it to the palmrest assembly [2].
NOTE: For models shipped with a fingerprint reader or WWAN antennas, there are three (M2x4) screws securing the system board to the computer. 3. Place the USB Type-C bracket [1] on the system board and secure it using two (M2x5) screws [2] to the system board. 4. Install the DDR ESD bracket [1] on the system board and secure it using two (M2x2.
5. Open the latch and connect the USH board cable [1] and the touchpad cable [2] to the system board.
6. Connect the coin cell [1], speaker cable [2], and the LED daughterboard ribbon cable [3] to the system board.
7. Install the metal bracket on the Darwin connector [1] and secure it to the palmrest using a single (M2x4) screw [2] to the system board. 8. Route the display cable through the metal bracket [1] and connect it to the system board [2].
9. Install the display cable bracket [1] on the EDP connector of the system board and secure it using a single (M2x3) screw [2]. 10. Connect the power button (with finger print reader) cable to the system board [1]. 11. Connect the Darwin WWAN antenna cables [2] to the the system board. 1. Install the display assembly 2. Install the power adapter port. 3. Install the heatsink-fan assembly.
4. 5. 6. 7. 8. 9. Install the WLAN card. Install the SSD. Install the memory. Install the battery. Install the base cover. Follow the procedure after working inside your computer. Power-Button Board Removing the power-button board 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Follow the procedure in before working inside your computer. Remove the base cover. Remove the battery. Remove the memory. Remove the SSD. Remove the WLAN card. Remove the heatsink-fan assembly. Remove the power adapter port.
Figure 3.
Figure 4. Removing the power-button board with FPR Installing the power-button board 1. Align and place the power-button board in to its slot on the plamrest assembly [1]. 2. Replace the two (M2x2.5) screws to secure the power-button board to the palmrest assembly [2].
Figure 5.
Figure 6. Installing the power-button board with FPR NOTE: Power-button board with finger print reader, has a cable that connects to the system board. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Install the system board. Install the touchpad buttons. Install the display assembly Install the power adapter port. Install the heatsink-fan assembly. Install the WLAN card. Install the SSD. Install the memory. Install the battery. Install the base cover. Follow the procedure after working inside your computer.
7. 8. 9. 10. 11. 12. Remove Remove Remove Remove Remove Remove the the the the the the heatsink-fan assembly. power adapter port. display assembly. system board. coin cell. power-button board. 1. Lift the latch and disconnect the keyboard cable [1] and the backlight cable [2] from the touchpad module. 2. NOTE: This image shows disassembly of a carbon fiber variant, an Aluminum variant of this model has 21 M1.6x2 screws securing the keyboard assembly to palmrest. Remove the 19 (M1.
Installing the keyboard 1. NOTE: The keyboard has multiple snap points on the lattice side which must be pushed down firmly at the snap points in order to secure and fit it to the replacement keyboard. Align the keyboard to the keyboard support plate [1] and replace the two (M2x2) screws [2]. 2. Place the keyboard assembly in the palmrest [1] and secure it with the 17 (M1.6x2) screws [2]. NOTE: This image shows disassembly of a carbon fiber variant, an Aluminum variant of this model has 21 M1.
3. Connect the keyboard cable [3] and the backlight cable [4] to the touchpad module. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Install the power button. Install the coin cell. Install the system board. Install the display assembly Install the power adapter port. Install the heatsink-fan assembly. Install the WLAN card. Install the SSD. Install the memory. Install the battery. Install the base cover. Follow the procedure after working inside your computer. Palmrest 1. 2. 3. 4. 5. 6. 7. 8. 9.
10. 11. 12. 13. 14. 15. 16. Remove Remove Remove Remove Remove Remove Remove the the the the the the the speaker. display assembly. touchpad buttons. system board. coin cell. power button. keyboard. 1. After removing these components, you are left with the palmrest assembly. 2. Install the following components to the new palmrest assembly: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Install the keyboard. Install the power button. Install the coin cell. Install the system board.
5 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.
Table 2. Navigation keys (continued) Keys Navigation 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.
Table 3. General (continued) Option Description ○ ○ ○ ○ ○ ○ Memory Available Memory Speed Memory Channel Mode Memory Technology DIMM A Size DIMM B Size NOTE: Due to an amount of memory being assigned for system use, "Memory Available" is less than "Memory Installed". Note that certain operating systems may not be able to use all the available memory.
Table 3. General (continued) Option Description 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, Except Internal HDD & PXE ● Always ● Never Date/Time Allows you to set the date and time. The change to the system date and time takes effect immediately. System configuration Table 4.
Table 4. System Configuration (continued) Option Description ● Thunderbolt (Enabled by Defualt) ● Enable Thunderbolt Boot Support ● Enable Thunderbolt (and PCIe behind TBT) Pre-boot With following security levels : ● ● ● ● Thunderbolt™ Auto Switch No Security User Authentication (Enabled by Defualt) Secure Connect Display Port and USB Only This option configures the method used by the Thunderbolt controller to perform PCIe device enumeration.
Table 4. System Configuration (continued) Option Description ● 5 minute ● 15 minute ● Never NOTE: Option present on system opted with backlit keyboard. Keyboard Backlight Timeout on Battery This feature defines the timeout value for the keyboard backlight when the system is running only on battery power. Options are: ● ● ● ● ● ● ● ● Unobtrusive Mode 5 seconds 10 seconds(Default) 15 seconds 30 seconds 1 minute 5 minute 15 minute Never NOTE: Option present on system opted with backlit keyboard.
Table 5. Video (continued) Option Description Privacy Screen This option Enables or Disables the Privacy Screen if the Panel supports this feature. The options are: ● Disabled: When Disabled the privacy screen is not applied to the embedded display panel. ● Enabled — Default: When enabled, the privacy screen is applied to the embedded display panel and can be toggled between public mode and privacy mode using the Fn+F9 key combination on the embedded keyboard.
Table 6. Security (continued) Option Description Password Change Allows you to change the System password when the administrator password is set. ● Allow Non-Admin Password Changes This option is set by default. UEFI Capsule Firmware Updates Allows you to update the system BIOS via UEFI capsule update packages. ● Enable UEFI Capsule Firmware Updates This option is set by default.
Table 6. Security (continued) Option Description This option is not set by default. Secure boot Table 7. Secure Boot Option Description Secure Boot Enable 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.
Performance Table 9. Performance Option Description Multi Core Support This field specifies whether the process has one or all cores enabled. The performance of some applications improves with the additional cores. ● ● ● ● Intel SpeedStep All—Default 1 2 3 Allows you to enable or disable the Intel SpeedStep mode of processor. ● Enable Intel SpeedStep This option is set by default. C-States Control Allows you to enable or disable the additional processor sleep states.
Table 10. Power Management (continued) Option Description ● Wake on Dell USB-C Dock This option is set by default. Wireless Radio Control This option if enabled, will sense the connection of the system to a wired network and subsequently disable the selected wireless radios (WLAN and/or WWAN). Upon disconnection from the wired network the selected wireless radio will ne enabled. ● Control WLAN radio ● Control WWAN radio Both the options are not set by default.
Table 11. POST Behavior (continued) Option Description ● Enable Numlock—Default 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.
Table 12. Manageability (continued) Option Description MEBx Hotkey This option specifies whether the MEBx Hotkey function should be enabled when the system boots. Virtualization support Table 13. 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.
Table 15. Maintenance (continued) Option Description ● Allow BIOS Downgrade This option is set by default. Data Wipe Allows you to securely erase data from all internal storage devices. ● Wipe on Next Boot This option is not set by default. Bios Recovery BIOS Recovery from Hard Drive—This option is set by default. Allows you to recover the corrupted BIOS from a recovery file on the HDD or an external USB key. BIOS Auto-Recovery— Allows you to recover the BIOS automatically.
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 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.
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 17.
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.
6 Troubleshooting Topics: • • • • • • • • Handling swollen Lithium-ion batteries Dell SupportAssist Pre-boot System Performance Check diagnostics Built-in self-test (BIST) System-diagnostic lights Recovering the operating system 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.
Dell SupportAssist Pre-boot System Performance Check diagnostics 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.
Table 18. 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.
System-diagnostic lights Power and battery-status light The power and battery status light indicates the power and battery status of the computer. These are the power states: Solid white:Power adapter is connected and the battery has more than 5% charge. Amber:Computer is running on battery and the battery has less than 5% charge. Off: ● Power adapter is connected, and the battery is fully charged. ● Computer is running on battery, and the battery has more than 5% charge.
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.
7 Getting help Topics: • Contacting Dell Contacting Dell 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. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1. Go to Dell.com/support. 2.
