DELL Inspiron 14 5440 Laptop Owner’s Manual

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Working inside your computer

Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.
Two recognized types of ESD damage are catastrophic and intermittent failures. Catastrophic ­ Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an
immediate and complete loss of device functionality. An example of catastrophic failure is a memory DIMM that has received a static shock and immediately generates a “No POST/No Video” symptom with a beep code that is emitted for missing or nonfunctional memory. Intermittent ­ Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of intermittent failures means that most of the time when damage occurs, it is not immediately recognizable. The DIMM receives a static shock, but the tracing is merely weakened and does not immediately produce outward symptoms that are related to the damage. The weakened trace may take weeks or months to melt, and in the meantime may cause degradation of memory integrity, intermittent memory errors, and so on.
The more difficult type of damage to recognize and troubleshoot is the intermittent (also called latent or “walking wounded”) failure.
Perform the following steps to prevent ESD damage: 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. When unpacking a static-sensitive component from its shipping carton, do not remove the component from the anti-static packing material until you are ready to install the component. Before unwrapping the anti-static packaging, ensure that you discharge static electricity from your body. Before transporting a static- sensitive component, place it in an anti-static container or packaging.
ESD field service kit
The unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components: anti-static mat, wrist strap, and bonding wire.
Components of an ESD field service kit
The components of an ESD field service kit are: Anti-Static Mat ­ The anti- static mat is dissipative and parts can be placed on it during service procedures. When using an
anti-static mat, your wrist strap should be snug and the bonding wire should be connected to the mat and to any bare metal on the computer being worked on. Once deployed properly, service parts can be removed from the ESD bag and placed directly on the mat. ESD-sensitive items are safe in your hand, on the ESD mat, in the computer, or inside a bag. Wrist Strap and Bonding Wire ­ The wrist strap and bonding wire can be either directly connected between your wrist and bare metal on the hardware if the ESD mat is not required, or connected to the anti-static mat to protect hardware that is temporarily placed on the mat. The physical connection of the wrist strap and bonding wire between your skin, the ESD mat, and the hardware is known as bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never use wireless wrist straps. Always be aware that the internal wires of a wrist strap are prone to damage from normal wear and tear, and must be checked regularly with a wrist strap tester in order to avoid accidental ESD hardware damage. It is recommended to test the wrist strap and bonding wire at least once per week. ESD Wrist Strap Tester ­ The wires inside an ESD strap are prone to damage over time. When using an unmonitored kit, it is a best practice to regularly test the strap prior to each service call, and at a minimum, test once per week. A wrist strap tester is the best method for doing this test. If you do not have your own wrist strap tester, check with your regional office to find out if they have one. To perform the test, plug the wrist-strap’s bonding-wire into the tester while it is strapped to your wrist and push the button to test. A green LED is lit if the test is successful; a red LED is lit and an alarm sounds if the test fails. Insulator Elements ­ It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts that are insulators and often highly charged. Working Environment ­ Before deploying the ESD Field Service kit, assess the situation at the customer location. For example, deploying the kit for a server environment is different than for a desktop or laptop environment. Servers are typically installed in a rack within a data center; desktops or laptops are typically placed on office desks or cubicles. Always look for a large open flat work area that is free of clutter and large enough to deploy the ESD kit with additional space to accommodate the type of computer that is being repaired. The workspace should also be free of insulators that can cause an ESD event. On the work area, insulators such as Styrofoam and other plastics should always be moved at least 12 inches or 30 centimeters away from sensitive parts before physically handling any hardware components.

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ESD Packaging ­ All ESD-sensitive devices must be shipped and received in static-safe packaging. Metal, static-shielded bags are preferred. However, you should always return the damaged part using the same ESD bag and packaging that the new part arrived in. The ESD bag should be folded over and taped shut and all the same foam packing material should be used in the original box that the new part arrived in. ESD-sensitive devices should be removed from packaging only at an ESD-protected work surface, and parts should never be placed on top of the ESD bag because only the inside the bag is shielded. Always place parts in your hand, on the ESD mat, in the computer, or inside an anti-static bag.
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.
ESD protection summary
It is recommended to use the traditional wired ESD grounding wrist strap and protective anti-static mat always when servicing Dell products. In addition, it is critical to keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.
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.
After working inside your computer
About this task
CAUTION: 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.
NOTE: To exit service mode, ensure to connect the AC adapter to the power- adapter port on your computer.
5. Press the power button to turn on the computer. Your computer will automatically return to normal functioning mode.
BitLocker
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 the recovery key on each reboot. If the recovery key is not known, this can result in data loss or an unnecessary operating system reinstall. For more information about this subject, see Knowledge Article: updating the BIOS on Dell systems with BitLocker enabled. The installation of the following components triggers BitLocker: Hard disk drive or solid-state drive System board
Recommended tools
The procedures in this document may require the following tools: Phillips screwdriver #0 Phillips screwdriver #1 Plastic scribe

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Screw list

NOTE: When removing screws from a component, it is recommended to note the screw type, and the quantity of screws, and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced.
NOTE: Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surfaces when replacing a component.
NOTE: Screw color may vary with the configuration ordered.

Table 26. Screw list
Component
Base cover for computers that are shipped with a plastic chassis

Screw type Captive Screw
M2x4

Quantity 2
6

Screw image

Base cover for computers that Captive Screw

2

are shipped with an aluminum

chassis

M2x4

5

System board for computers

M2x2

2

that are shipped with a plastic

chassis

M2.5×4

2

M2x4

3

System board for computers

M2x2

2

that are shipped with an

aluminum chassis

M2.5×4

2

M2x4

2

Display hinges for computers M2.5×4

4

that are shipped with a plastic

chassis

Display hinges for computers M2.5×4.5

4

that are shipped with an

aluminum chassis

41W battery

M2x3

3

54W battery

M2x3

5

Power-button board

M2x3

1

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Table 26. Screw list (continued)

Component

Screw type

I/O board

M2.5×4

M2x3

Wireless-card bracket

M2x3

Solid-state drive

M2x3

M2x1.8

Power-adapter port for

M2.5×4

computers that are shipped with

a plastic chassis

Power-adapter port for

M2.5×4.5

computers that are shipped with

an aluminum chassis

Heat sink for computers that are shipped with a plastic chassis

Captive

Heat sink for computers that are shipped with an aluminum chassis

Captive

Display assembly for computers M2.5×4 that are shipped with a plastic chassis

Display assembly for computers M2.5×4.5 that are shipped with an aluminum chassis

Display panel for computers that are shipped with a plastic chassis

M2.5×2.5

System fan

M2x4

Touchpad for computers that are shipped with a plastic chassis

M2x1.8 M1.6×2.5

Touchpad for computers that are shipped with an aluminum chassis

M2x2 M2x2.5

Quantity 2 1 1 1 1 2
2
4
7
4
4
6
2 2 4 4 1

Screw image

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Major components of Inspiron 14 5440
The following image shows the major components of Inspiron 14 5440.

Figure 9. Major components for computers that are shipped with a plastic chassis
1. Base cover 2. Battery 3. Heat sink 4. Memory 5. System board 6. Speaker 7. Touchpad

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8. Palm-rest and keyboard assembly 9. Display assembly 10. Power button 11. I/O board 12. Fan 13. Solid-state drive 14. Wireless card 15. Power adapter port

Figure 10. Major components for computers that are shipped with an aluminum chassis
1. Base cover 2. Battery 3. Heat sink

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4. Memory 5. System board 6. Speaker 7. Touchpad 8. Palm-rest and keyboard assembly 9. Display assembly 10. Power button 11. I/O board 12. Fan 13. Solid- state drive 14. Wireless card 15. Power adapter port
NOTE: Dell provides a list of components and their part numbers for the original computer configuration purchased. These parts are available according to warranty coverage purchased by the customer. Contact your Dell sales representative for purchase options.

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5
Removing and installing Customer Replaceable Units (CRUs)
The replaceable components in this chapter are Customer Replaceable Units (CRUs). CAUTION: Customers can replace only the Customer Replaceable Units (CRUs) following the safety precautions and replacement procedures. NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Base cover
Removing the base cover for computers shipped with a plastic chassis
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer.
About this task The following images indicate the location of the base cover and provide a visual representation of the removal procedure.

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Removing and installing Customer Replaceable Units (CRUs)

Figure 11. Removing the base cover

Removing and installing Customer Replaceable Units (CRUs)

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Figure 12. Removing the base cover
Steps 1. Remove the six screws (M2x4) that secure the base cover to the palm- rest and keyboard assembly. 2. Loosen the two captive screws that secure the base cover to the palm-rest and keyboard assembly.
NOTE: Upon loosening the captive screws, the base cover opens up creating a gap between the base cover and the palm-rest assembly at the hinges.
3. Starting from the top-left corner of the hinge, pry the base cover to release the base cover from the palm-rest and keyboard assembly.
4. Lift the base cover off the palm-rest and keyboard assembly.
Installing the base cover for computers shipped with a plastic chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
About this task The following image indicates the location of the battery and provides a visual representation of the installation procedure.

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Removing and installing Customer Replaceable Units (CRUs)

Figure 13. Installing base cover

Removing and installing Customer Replaceable Units (CRUs)

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Figure 14. Installing the base cover
Steps 1. Align the screw holes on the base cover with the screw holes on the palm-rest and keyboard assembly. 2. Snap the base cover into place. 3. Tighten the two captive screws that secure the base cover to the palm-rest and keyboard assembly. 4. Replace the six screws (M2x4) that secure the base cover to the palm-rest and keyboard assembly.
Next steps 1. Follow the procedure in After working inside your computer.
Removing the base cover for computers shipped with an aluminum chassis
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer.
About this task The following images indicate the location of the base cover and provide a visual representation of the removal procedure.

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Removing and installing Customer Replaceable Units (CRUs)

Figure 15. Removing the base cover

Removing and installing Customer Replaceable Units (CRUs)

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Figure 16. Removing the base cover
Figure 17. Disconnect the battery cable
Steps 1. Loosen the two captive screws that secure the base cover to the palm- rest and keyboard assembly.
NOTE: Upon loosening the captive screws, the base cover opens up creating a gap between the base cover and the palm-rest assembly at the hinges. 2. Remove the five screws (M2x4) that secure the base cover to the palm-rest and keyboard assembly. 3. Starting from the top-left corner of the hinge, pry the base cover to release the base cover from the palm-rest and keyboard assembly. 4. Lift the base cover off the palm-rest and keyboard assembly.
Installing the base cover for computers shipped with an aluminum chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
About this task The following image indicates the location of the base cover and provides a visual representation of the installation procedure.

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Removing and installing Customer Replaceable Units (CRUs)

Figure 18. Installing the base cover

Removing and installing Customer Replaceable Units (CRUs)

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Figure 19. Installing the base cover
Steps 1. Align the screw holes on the base cover with the screw holes on the palm-rest and keyboard assembly. 2. Snap the base cover into place. 3. Tighten the two captive screws that secure the base cover to the palm-rest and keyboard assembly. 4. Replace the five screws (M2x4) that secure the base cover to the palm-rest and keyboard assembly.
Next steps 1. Follow the procedure in After working inside your computer.
Memory module
Removing the memory module for computers shipped with a plastic chassis
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis.
About this task The following image indicates the location of the memory module and provides a visual representation of the removal procedure.

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Removing and installing Customer Replaceable Units (CRUs)

Figure 20. Removing the memory module
Steps 1. Carefully spread apart the securing-clips on each end of the memory- module slot until the memory module pops-up. 2. Remove the memory module from the memory-module slot on the system board.
Installing the memory module for computers shipped with a plastic chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the memory module and provides a visual representation of the installation procedure.

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Figure 21. Installing the memory module
Steps 1. Align the notch on the memory module with the tab on the memory- module slot on the system board. 2. Slide the memory module into the memory- module slot on the system board. 3. Press down on the memory module till the securing clips click, locking the memory module in place.
Next steps 1. Install the base cover for computer shipped with a plastic chassis. 2. Follow the procedure in After working inside your computer.
Removing the memory module for computers shipped with an aluminum chassis
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer. 2. Remove the base cover for computers shipped with an aluminum chassis.
About this task The following image indicates the location of the memory module and provides a visual representation of the removal procedure.

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Removing and installing Customer Replaceable Units (CRUs)

Figure 22. Removing the memory module
Steps 1. Lift the Mylar to access the memory module. 2. Carefully spread apart the securing-clips on each end of the memory-module slot until the memory module pops-up. 3. Remove the memory module from the memory-module slot on the system board.
Installing the memory module for computers shipped with an aluminum chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the memory module and provides a visual representation of the installation procedure.

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Figure 23. Installing the memory module
Steps 1. Lift the Mylar to access the memory-module slot. 2. Align the notch on the memory module with the tab on the memory-module slot on the system board. 3. Slide the memory module into the memory-module slot on the system board. 4. Press down on the memory module till the securing clips click, locking the memory module in place.
Next steps 1. Install the base cover for computer shipped with an aluminum chassis. 2. Follow the procedure in After working inside your computer.

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Removing and installing Customer Replaceable Units (CRUs)

Solid-state drive
Removing the M.2 2230 solid-state drive for computers shipped with a plastic chassis
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis.
About this task NOTE: The support card configuration on the M.2 card slot is: M.2 2230 solid-state drive + M.2 2230 solid-state drive mounting bracket
The following image indicates the location of the M.2 2230 solid-state drive and provides a visual representation of the removal procedure.

Figure 24. Removing the solid-state drive
Steps 1. Remove the screw (M2x3) that secures the M.2 2230 solid-state drive assembly to the system board. 2. Slide and lift the M.2 2230 solid-state drive assembly off the system board. 3. Flip over the M.2 2230 solid-state drive assembly. 4. Remove the screw (M2x2) that secures the M.2 2230 solid-state drive to the M.2 2230 solid-state drive mounting bracket. 5. Lift the M.2 2230 solid-state drive off the M.2 2230 solid-state drive mounting bracket.

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Installing the M.2 2230 solid-state drive for computers shipped with a plastic chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task NOTE: The support card configuration on the M.2 card slot is: M.2 2230 solid-state drive + M.2 2230 solid-state drive mounting bracket
The following image indicates the location of the M.2 2230 solid-state drive and provides a visual representation of the installation procedure.

Figure 25. Installing the solid-state drive
Steps 1. Place and align the M.2 2230 solid-state drive on the M.2 2230 solid- state drive mounting bracket. 2. Replace the screw (M2x2) that secures the M.2 2230 solid-state drive to the M.2 2230 solid-state drive mounting bracket. 3. Flip over the M.2 2230 solid-state drive assembly. 4. Align the notch on the M.2 2230 solid-state drive with the tab on the M.2 solid-state drive slot on the system board. 5. Slide and place the M.2 2230 solid-state drive in the M.2 solid-state drive slot on the system board. 6. Replace the screw (M2x3) that secures the M.2 2230 solid-state drive assembly to the system board.
Next steps 1. Install the base cover for computer shipped with a plastic chassis. 2. Follow the procedure in After working inside your computer.

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Removing and installing Customer Replaceable Units (CRUs)

Removing the M.2 2230 solid-state drive for computers shipped with an aluminum chassis
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer. 2. Remove the base cover for computers shipped with an aluminum chassis.
About this task NOTE: The support card configuration on the M.2 card slot is: M.2 2230 solid-state drive + M.2 2230 solid-state drive mounting bracket
The following image indicates the location of the M.2 2230 solid-state drive and provides a visual representation of the removal procedure.

Figure 26. Removing the solid-state drive
Steps 1. Remove the screw (M2x3) that secures the M.2 2230 solid-state drive assembly to the system board. 2. Slide and lift the M.2 2230 solid-state drive assembly off the system board. 3. Flip over the M.2 2230 solid-state drive assembly. 4. Remove the screw (M2x2) that secures the M.2 2230 solid-state drive to the M.2 2230 solid-state drive mounting bracket. 5. Lift the M.2 2230 solid-state drive off the M.2 2230 solid-state drive mounting bracket.
Installing the M.2 2230 solid-state drive for computers shipped with an aluminum chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

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About this task
NOTE: The support card configuration on the M.2 card slot is: M.2 2230 solid- state drive + M.2 2230 solid-state drive mounting bracket
The following image indicates the location of the M.2 2230 solid-state drive and provides a visual representation of the installation procedure.

Figure 27. Installing the solid-state drive
Steps 1. Place and align the M.2 2230 solid-state drive on the M.2 2230 solid- state drive mounting bracket. 2. Replace the screw (M2x2) that secures the M.2 2230 solid-state drive to the M.2 2230 solid-state drive mounting bracket. 3. Flip over the M.2 2230 solid-state drive assembly. 4. Align the notch on the M.2 2230 solid-state drive with the tab on the M.2 solid-state drive slot on the system board. 5. Slide and place the M.2 2230 solid-state drive in the M.2 solid-state drive slot on the system board. 6. Replace the screw (M2x3) that secures the M.2 2230 solid-state drive assembly to the system board.
Next steps 1. Install the . 2. Install the base cover for computer shipped with an aluminum chassis. 3. Follow the procedure in After working inside your computer.
Wireless card
Removing the wireless card for computers shipped with a plastic chassis
Prerequisites 1. Follow the procedure in Before working inside your computer.

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Removing and installing Customer Replaceable Units (CRUs)

NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis.
About this task The following image indicates the location of the wireless card and provides a visual representation of the removal procedure.

Figure 28. Removing the wireless card
Steps 1. Remove the screw (M2x3) that secures the wireless-card bracket to the wireless card and system board. 2. Lift the wireless-card bracket off the wireless card. 3. Disconnect the antenna cables from the wireless card. 4. Slide and lift the wireless card off the system board.

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Installing the wireless card for computers shipped with a plastic chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
About this task The following image indicates the location of the wireless card and provides a visual representation of the installation procedure.

Figure 29. Installing the wireless card
Steps 1. Connect the antenna cables to the wireless card.
The following table provides the antenna-cable color scheme for the wireless card that is supported by your computer.

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Removing and installing Customer Replaceable Units (CRUs)

Table 27. Antenna-cable color scheme

Connectors on the wireless card
Main

Antenna-cable color White

Auxiliary

Black

Silkscreen marking
MAIN AUX

(white triangle) (black triangle)

2. Align the notch on the wireless card with the tab on the M.2 wireless-card slot on the system board. 3. Slide the wireless card into the M.2 wireless- card slot on the system board. 4. Replace the screw (M2x3) that secures the wireless card and wireless-card bracket to the system board.

Next steps
1. Install the base cover for computers shipped with a plastic chassis. 2. Follow the procedure in After working inside your computer.

Removing the wireless card for computers shipped with an aluminum chassis

Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer. 2. Remove the base cover for computers shipped with an aluminum chassis.
About this task The following image indicates the location of the wireless card and provides a visual representation of the removal procedure.

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Figure 30. Removing the wireless card
Steps 1. Remove the screw (M2x3) that secures the wireless-card bracket to the wireless card and system board. 2. Lift the wireless-card bracket off the wireless card. 3. Disconnect the antenna cables from the wireless card. 4. Slide and lift the wireless card off the system board.
Installing the wireless card for computers shipped with an aluminum chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
About this task The following image indicates the location of the wireless card and provides a visual representation of the installation procedure.

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Removing and installing Customer Replaceable Units (CRUs)

Figure 31. Installing the wireless card

Steps 1. Connect the antenna cables to the wireless card.
The following table provides the antenna-cable color scheme for the wireless card that is supported by your computer.

Table 28. Antenna-cable color scheme

Connectors on the wireless card

Antenna-cable color

Main

White

Auxiliary

Black

Silkscreen marking
MAIN AUX

(white triangle) (black triangle)

2. Align the notch on the wireless card with the tab on the M.2 wireless-card slot on the system board. 3. Slide the wireless card into the M.2 wireless- card slot on the system board. 4. Replace the screw (M2x3) that secures the wireless card and wireless-card bracket to the system board.

Next steps
1. Install the base cover for computer shipped with an aluminum chassis. 2. Follow the procedure in After working inside your computer.

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System fan
Removing the system fan for computers shipped with a plastic chassis
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis.
About this task The following image indicates the location of the system fan and provides a visual representation of the removal procedure.

Figure 32. Removing the fan
Steps 1. Disconnect the fan cable (FN1) from the system board. 2. Remove the two screws (M2x4) that secure the fan to the palm-rest and keyboard assembly. 3. Lift the fan off the palm-rest and keyboard assembly.
Installing the system fan for computers shipped with a plastic chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

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Removing and installing Customer Replaceable Units (CRUs)

About this task The following image indicates the location of the system fan and provides a visual representation of the installation procedure.
Figure 33. Installing the fan

Steps 1. Place the fan on the palm-rest and keyboard assembly. 2. Align the screw holes on the fan with the screw holes on the palm-rest and keyboard assembly. 3. Replace the two screws (M2x4) that secure the fan to the palm- rest and keyboard assembly. 4. Connect the fan cable (FN1) to the system board.
Next steps 1. Install the base cover for computers shipped with a plastic chassis. 2. Follow the procedure in After working inside your computer.
Removing the system fan for computers shipped with an aluminum chassis
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in, Before working inside your computer. 2. Remove the base cover for computers shipped with an aluminum chassis.
About this task The following image indicates the location of the system fan and provides a visual representation of the removal procedure.

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Figure 34. Removing the fan
Steps 1. Disconnect the fan cable (FN1) from the system board. 2. Remove the two screws (M2x4) that secure the fan to the palm-rest and keyboard assembly. 3. Lift the fan off the palm-rest and keyboard assembly.
Installing the system fan for computers shipped with an aluminum chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
About this task The following image indicates the location of the system fan and provides a visual representation of the installation procedure.

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Removing and installing Customer Replaceable Units (CRUs)

Figure 35. Installing the fan
Steps 1. Place the system fan on the palm-rest and keyboard assembly. 2. Align the screw holes on the system fan with the screw holes on the palm-rest and keyboard assembly. 3. Replace the two screws (M2x4) that secure the fan to the palm-rest and keyboard assembly. 4. Connect the fan cable (FN1) to the system board.
Next steps 1. Install the base cover for computer shipped with an aluminum chassis. 2. Follow the procedure in After working inside your computer.

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6
Removing and installing Field Replaceable Units (FRUs)
The replaceable components in this chapter are Field Replaceable Units (FRUs). CAUTION: The information in this section is intended for authorized service technicians only.
CAUTION: To avoid any potential damage to the component or loss of data, ensure that an authorized service technician replaces the Field Replaceable Units (FRUs). CAUTION: Dell Technologies recommends that this set of repairs, if needed, to be conducted by trained technical repair specialists. CAUTION: As a reminder, your warranty does not cover damages that may occur during FRU repairs that are not authorized by Dell Technologies.
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Battery
Rechargeable Li-ion battery precautions
CAUTION: Exercise caution when handling rechargeable Li-ion batteries. Discharge the battery completely before removing it. Disconnect the AC power adapter from the computer
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. 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 computer 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 rechargeable Li-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 rechargeable Li-ion batteries, see Handling swollen rechargeable Li- ion batteries.
Removing the 41 W battery for computers shipped with a plastic chassis
CAUTION: The information in this removal section is intended for authorized service technicians only.

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Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis.
About this task CAUTION: Removing the battery resets the BIOS setup settings to default. It is recommended that you note the BIOS setup settings before removing the battery.
The following image indicates the location of the battery and provides a visual representation of the removal procedure.

Figure 36. Removing the battery
Steps 1. Peel the adhesive tape that secures the battery cable to the system board. 2. Disconnect the battery cable from the connector (BATT1) on the system board. 3. Remove the three screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 4. Lift the battery off the palm-rest and keyboard assembly.
Installing the 41 W battery for computers shipped with a plastic chassis
CAUTION: The information in this installation section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the battery and provides a visual representation of the installation procedure. Figure 37. Installing the battery

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Steps 1. Align the screw holes on the battery with the screw holes on the palm-rest and keyboard assembly. 2. Replace the three screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 3. Connect the battery cable to the connector (BATT1) on the system board. 4. Adhere the adhesive tape that secures the battery cable to the system board.
Next steps 1. Install the base cover for computer shipped with a plastic chassis. 2. Follow the procedure in After working inside your computer.
Removing the 54 W battery for computers shipped with a plastic chassis
CAUTION: The information in this removal section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis.
About this task CAUTION: Removing the battery resets the BIOS setup settings to default. It is recommended that you note the BIOS setup settings before removing the battery.
The following image indicates the location of the battery and provides a visual representation of the removal procedure.

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Figure 38. Removing the battery
Steps 1. Peel the tape that secures the battery cable to the system board and disconnect the battery cable from the connector
(BATT1) on the system board. 2. Remove the five screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 3. Lift the battery off the palm-rest and keyboard assembly.
Installing the 54 W battery for computers shipped with a plastic chassis
CAUTION: The information in this installation section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the battery and provides a visual representation of the installation procedure. Figure 39. Installing the battery

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Steps 1. Align the screw holes on the battery with the screw holes on the palm-rest and keyboard assembly. 2. Replace the five screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 3. Connect the battery cable to the connector (BATT1) on the system board and adhere the tape that secures the battery
cable to the battery.
Next steps 1. Install the base cover for computer shipped with a plastic chassis. 2. Follow the procedure in After working inside your computer.
Removing the 54 W battery for computers shipped with an aluminum chassis
CAUTION: The information in this removal section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with an aluminum chassis.
About this task CAUTION: Removing the battery resets the BIOS setup settings to default. It is recommended that you note the BIOS setup settings before removing the battery.
The following image indicates the location of the battery and provides a visual representation of the removal procedure.

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Figure 40. Removing the battery
Steps 1. Peel the tape that secures the battery cable to the system board and disconnect the battery cable from the connector on
the system board. 2. Remove the five screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 3. Lift the battery off the palm-rest and keyboard assembly.
Installing the 54 W battery for computers shipped with an aluminum chassis
CAUTION: The information in this installation section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the battery and provides a visual representation of the installation procedure.

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Figure 41. Installing the battery
Steps 1. Align the screw holes on the battery with the screw holes on the palm-rest and keyboard assembly. 2. Replace the five screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 3. Connect the battery cable to the connector (BATT1) on the system board and adhere the tape that secures the battery
cable to the battery.
Next steps 1. Install the base cover for computer shipped with an aluminum chassis. 2. Follow the procedure in After working inside your computer.
Disconnecting the battery cable
CAUTION: The information in this removal section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis, or the base cover for computers shipped with an
aluminum chassis. 3. Remove the 54 W battery for computers shipped with a plastic chassis, or the 54 W battery for computers shipped with an
aluminum chassis.
About this task The following image indicates the location of the battery cable and provides a visual representation of the removal procedure.

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Figure 42. Disconnecting the battery cable
Steps 1. Unroute the battery cable from the routing guides on the battery. 2. Open the latch and disconnect the battery cable from the connector on the battery.
CAUTION: DO NOT pull the battery cable to disconnect it from the battery, it may damage the battery or the battery cable. NOTE: To disconnect the battery cable, first push the latch downward to release the connector, and then pull the connector upward to disconnect it from the battery.
Connecting the battery cable
CAUTION: The information in this installation section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
About this task The following image indicates the location of the battery cable and provides a visual representation of the installation procedure.

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Figure 43. Connecting the battery cable
Steps 1. Connect the battery cable to the connector on the battery and close the latch. 2. Route the battery cable through the routing guides on the battery.
Next steps 1. Install the 54 W battery for computers shipped with a plastic chassis, or the 54 W battery for computers shipped with an
aluminum chassis. 2. Install the base cover for computers shipped with a plastic chassis, or the base cover for computers shipped with an
aluminum chassis. 3. Follow the procedure in After working inside your computer.
Heat sink
Removing the heat sink for computers shipped with a plastic chassis – UMA
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis.
About this task NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it.

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NOTE: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can reduce the heat transfer capability of the thermal grease. The following image indicates the location of the battery and provides a visual representation of the removal procedure.
Figure 44. Removing the heat sink

Steps 1. In reverse sequential order (4 > 3 > 2 > 1), loosen the four captive screws that secure the heat sink to the system board. 2. Lift the heat sink off the system board.
Installing the heat sink for computers shipped with a plastic chassis – UMA
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the heat sink and provides a visual representation of the installation procedure. Figure 45. Installing the heat sink

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Steps 1. Place the heat sink on the system board. 2. Align the screw holes on the heat sink with the screw holes on the system board. 3. In sequential order (1 > 2 > 3 > 4) tighten the four captive screws that secure the heat sink to the system board.
Next steps 1. Install the base cover for computer shipped with a plastic chassis. 2. Follow the procedure in After working inside your computer.
Removing the heat sink for computers shipped with an aluminum chassis – Discrete
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with an aluminum chassis.
About this task NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it. NOTE: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can reduce the heat transfer capability of the thermal grease.
The following image indicates the location of the discrete heat sink and provides a visual representation of the removal procedure.

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Figure 46. Removing the heat sink
Steps 1. In reverse sequential order (7 > 6 > 5 > 4 > 3 > 2 > 1), loosen the seven captive screws that secure the heat sink to the
system board. 2. Lift the heat sink off the system board.
Installing the heat sink for computers shipped with an aluminum chassis – Discrete
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the discrete heat sink and provides a visual representation of the installation procedure.

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Figure 47. Installing the heat sink
Steps 1. Place the heat sink on the system board. 2. Align the screw holes on the heat sink with the screw holes on the system board. 3. In sequential order (1 > 2 > 3 > 4 > 5 > 6 > 7) tighten the seven captive screws that secure the heat sink to the system
board.
Next steps 1. Install the base cover for computers shipped with an aluminum chassis. 2. Follow the procedure in After working inside your computer.
Power-adapter port
Removing the power-adapter port for computers shipped with a plastic chassis
CAUTION: The information in this removal section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis.

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About this task
CAUTION: Removing the battery resets the BIOS setup settings to default. It is recommended that you note the BIOS setup settings before removing the battery.
The following image indicates the location of the power-adapter port and provides a visual representation of the removal procedure.

Figure 48. Removing the power adapter port
Steps 1. Remove the two screws (M2.5×4) that secure the right hinge to the palm-rest and keyboard assembly. 2. Rotate to open the right hinge. 3. Peel the tape that secures the power-adapter cable to the system board and disconnect the power-adapter cable from the
connector (DC IN1) on the system board. 4. Lift the power-adapter port off the palm-rest and keyboard assembly.
Installing the power-adapter port for computers shipped with a plastic chassis
CAUTION: The information in this installation section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the power- adapter port and provides a visual representation of the installation procedure.

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Figure 49. Installing the power adapter port
Steps 1. Place the power-adapter port in its slot on the palm-rest and keyboard assembly. 2. Connect the power-adapter cable to the connector (DC IN1) on the system board. 3. Adhere the tape that secures the power-adapter cable to the system board. 4. Replace the two screws (M2.5×4) that secure the right hinge to the palm-rest and keyboard assembly.
Next steps 1. Install the base cover for computers shipped with a plastic chassis. 2. Follow the procedure in After working inside your computer.
Removing the power-adapter port for computers shipped with an aluminum chassis
CAUTION: The information in this removal section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with an aluminum chassis.
About this task CAUTION: Removing the battery resets the BIOS setup settings to default. It is recommended that you note the BIOS setup settings before removing the battery.

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The following image indicates the location of the power-adapter port and provides a visual representation of the removal procedure.

Figure 50. Removing the power adapter port
Steps 1. Remove the two screws (M2.5×4.5) that secure the right hinge to the palm-rest and keyboard assembly. 2. Rotate to open the right hinge. 3. Peel the tape that secures the power-adapter cable to the system board and disconnect the power-adapter cable from the
connector (DC IN1) on the system board. 4. Lift the power-adapter port off the palm-rest and keyboard assembly.
Installing the power-adapter port for computers shipped with an aluminum chassis
CAUTION: The information in this installation section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the power- adapter port and provides a visual representation of the installation procedure.

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Figure 51. Installing the power adapter port
Steps 1. Place the power-adapter port in its slot on the palm-rest and keyboard assembly. 2. Connect the power-adapter cable to the connector (DC IN1) on the system board. 3. Adhere the tape that secures the power-adapter cable to the system board. 4. Rotate to close the right hinge. 5. Replace the two screws (M2.5×4.5) that secure the right hinge to the palm-rest and keyboard assembly.
Next steps 1. Install the base cover for computers shipped with an aluminum chassis. 2. Follow the procedure in After working inside your computer.
I/O board
Removing the I/O board for computers shipped with a plastic chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis.

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About this task The following image indicates the location of the I/O board and provides a visual representation of the removal procedure.
Figure 52. Removing the I/O board

Steps 1. Remove the two screws (M2.5×4) that secure the left display hinge to the palm-rest and keyboard assembly. 2. Rotate the left display hinge to an angle of 90 degrees. 3. Lift the latch and disconnect the power-button with fingerprint reader cable from the I/O board.
NOTE: This step is only applicable to computers shipped with the optional fingerprint reader.
4. Lift the I/O-board cable-connector latch and disconnect the I/O-board cable from the I/O board. 5. Remove the screw (M2x3) that secure the I/O board to the palm-rest and keyboard assembly. 6. Lift the I/O board off the palm- rest and keyboard assembly.
Installing the I/O board for computers shipped with a plastic chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the I/O board and provides a visual representation of the installation procedure. Figure 53. Installing the I/O board

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Steps 1. Place the I/O board on the palm-rest and keyboard assembly. 2. Align the screw holes on the I/O board with the screw holes on the palm-rest and keyboard assembly. 3. Replace the screw (M2x3) that secure the I/O board to the palm-rest and keyboard assembly. 4. Connect the I/O-board cable to the connector on the I/O board and close the latch. 5. Connect the power-button with fingerprint-reader cable to the connector on the I/O board and close the latch.
NOTE: This step is only applicable to computers shipped with the optional fingerprint reader.
6. Close the left display hinge and align the screw holes on the left display hinge with the screw holes on the I/O board. 7. Replace the two screws (M2.5×4) that secure the left display hinge to the palm-rest and keyboard assembly.
Next steps 1. Install the base cover for computers shipped with a plastic chassis. 2. Follow the procedure in After working inside your computer.
Removing the I/O board for computers shipped with an aluminum chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with an aluminum chassis.
About this task The following image indicates the location of the I/O board and provides a visual representation of the removal procedure.

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Figure 54. Removing the I/O board
Steps 1. Remove the two screws (M2.5×4.5) that secure the left display hinge to the palm-rest and keyboard assembly. 2. Rotate the left display hinge to an angle of 90 degrees. 3. Lift the latch and disconnect the power-button with fingerprint reader cable from the I/O board.
NOTE: This step is only applicable to computers shipped with the optional fingerprint reader.
4. Lift the I/O-board cable-connector latch and disconnect the I/O-board cable from the I/O board. 5. Remove the screw (M2x3) that secure the I/O board to the palm-rest and keyboard assembly. 6. Lift the I/O board off the palm- rest and keyboard assembly.
Installing the I/O board for computers shipped with an aluminum chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the I/O board and provides a visual representation of the installation procedure.

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Figure 55. Installing the I/O board
Steps 1. Place the I/O board on the palm-rest and keyboard assembly. 2. Align the screw holes on the I/O board with the screw holes on the palm-rest and keyboard assembly. 3. Replace the screw (M2x3) that secure the I/O board to the palm-rest and keyboard assembly. 4. Connect the I/O-board cable to the connector on the I/O board and close the latch. 5. Connect the power-button with fingerprint-reader cable to the connector on the I/O board and close the latch.
NOTE: This step is only applicable to computers shipped with the optional fingerprint reader.
6. Close the left display hinge and align the screw holes on the left display hinge with the screw holes on the I/O board. 7. Replace the two screws (M2.5×4.5) that secure the left display hinge to the palm-rest and keyboard assembly.
Next steps 1. Install the base cover for computers shipped with an aluminum chassis. 2. Follow the procedure in After working inside your computer.
Power button with fingerprint reader
Removing the power-button with fingerprint reader for computers shipped with a plastic chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis. 3. Remove the I/O board for computers shipped with a plastic chassis.

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About this task NOTE: This procedure is applicable only for computers that are shipped without the optional fingerprint reader.
The following image indicates the location of the power-button and provides a visual representation of the removal procedure. Figure 56. Removing the power- button

Steps 1. Remove the screw (M2x3) that secures the power-button to the palm- rest and keyboard assembly. 2. Lift the power-button off the palm-rest and keyboard assembly.
Installing the power-button with fingerprint reader for computers shipped with a plastic chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
About this task NOTE: This procedure is applicable only when you are installing a power-button without the optional fingerprint reader.

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The following image indicates the location of the power-button and provides a visual representation of the installation procedure.
Figure 57. Installing the power-button with fingerprint reader

Steps 1. Place the power-button into its slot on the palm-rest and keyboard assembly. 2. Align the screw hole on the power-button with the screw hole on the palm-rest and keyboard assembly. 3. Replace the screw (M2x3) that secures the power-button to the palm-rest and keyboard assembly.
Next steps 1. Install the I/O board for computers shipped with a plastic chassis. 2. Install the base cover for computers shipped with a plastic chassis. 3. Follow the procedure in After working inside your computer.
Removing the power-button with fingerprint reader for computers shipped with an aluminum chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer.

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2. Remove the base cover for computers shipped with an aluminum chassis. 3. Remove the I/O board for computers shipped with an aluminum chassis.
About this task NOTE: This procedure is applicable only for computers that are shipped without the optional fingerprint reader.
The following image indicates the location of the power-button and provides a visual representation of the removal procedure.

Figure 58. Removing the power-button with fingerprint reader
Steps 1. Remove the screw (M2x3) that secures the power-button to the palm- rest and keyboard assembly. 2. Lift the power-button off the palm-rest and keyboard assembly.
Installing the power-button with fingerprint reader for computers shipped with an aluminum chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

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About this task
NOTE: This procedure is applicable only when you are installing a power-button without the optional fingerprint reader.
The following image indicates the location of the power-button with fingerprint reader and provides a visual representation of the installation procedure.

Figure 59. Installing the power-button with fingerprint reader
Steps 1. Place the power-button into its slot on the palm-rest and keyboard assembly. 2. Align the screw hole on the power-button with the screw hole on the palm-rest and keyboard assembly. 3. Replace the screw (M2x3) that secures the power-button to the palm-rest and keyboard assembly.
Next steps 1. Install the I/O board for computers shipped with an aluminum chassis. 2. Install the base cover for computers shipped with an aluminum chassis. 3. Follow the procedure in After working inside your computer.

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Touchpad
Removing the touchpad for computers shipped with a plastic chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis. 3. Remove the 41W battery for computers shipped with a plastic chassis, or the 54W battery for computers shipped with a
plastic chassis.
About this task The following image indicates the location of the touchpad and provides a visual representation of the removal procedure. Figure 60. Removing the touchpad

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Steps 1. Lift the latch and disconnect the touchpad cable from the connector (TP1) on the system board. 2. Lift the latch and disconnect the touchpad cable from the connector on the touchpad. 3. Lift the touchpad cable off the palm- rest and keyboard assembly. 4. Remove the two screws (M2x1.8) and the four screws (M1.6×2.5) that secure the touchpad to the palm-rest and keyboard
assembly. 5. Lift the touchpad off the palm-rest and keyboard assembly.
Installing the touchpad for computers shipped with a plastic chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the touchpad and provides a visual representation of the installation procedure.
Figure 61. Installing the touchpad

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Steps
1. Place the touchpad into its slot on the palm-rest and keyboard assembly. 2. Align the screw holes on the touchpad with the screw holes on the palm-rest and keyboard assembly. 3. Replace the two screws (M2x1.8) and the four screws (M1.6×2.5) that secure the touchpad to the palm-rest and keyboard
assembly. 4. Place the touchpad cable on the palm-rest and keyboard assembly. 5. Connect the touchpad cable to the connector on the touchpad and close the latch. 6. Connect the touchpad cable to the connector (TP1) on the system board and close the latch.
Next steps
1. Install the 41W battery for computers shipped with a plastic chassis, or the 54W battery for computers shipped with a plastic chassis .
2. Install the base cover for computers shipped with a plastic chassis. 3. Follow the procedure in After working inside your computer.

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Removing the touchpad for computers shipped with an aluminum chassis
CAUTION: The information in this section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with an aluminum chassis. 3. Remove the 54W battery for computers shipped with an aluminum chassis.
About this task The following image indicates the location of the touchpad and provides a visual representation of the removal procedure.

Figure 62. Removing the touchpad
Steps 1. Lift the latch and disconnect the touchpad cable from the connector (TP1) on the system board.

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2. Lift the latch and disconnect the touchpad cable from the connector on the touchpad. 3. Lift the touchpad cable off the palm-rest and keyboard assembly. 4. Remove the one screw (M2x2.5) and the four screws (M2x2) that secure the touchpad to the palm-rest and keyboard
assembly. 5. Lift the touchpad off the palm-rest and keyboard assembly.
Installing the touchpad for computers shipped with an aluminum chassis
Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
About this task The following image indicates the location of the touchpad and provides a visual representation of the installation procedure.

Figure 63. Installing the touchpad
Steps 1. Place the touchpad into its slot on the palm-rest and keyboard assembly.

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2. Align the screw holes on the touchpad with the screw holes on the palm- rest and keyboard assembly. 3. Replace the single screw (M2x2.5) and the four screws (M2x2) that secure the touchpad to the palm-rest and keyboard
assembly. 4. Place the touchpad cable on the palm-rest and keyboard assembly. 5. Connect the touchpad cable to the connector on the touchpad and close the latch. 6. Connect the touchpad cable to the connector (TP1) on the system board and close the latch.
Next steps 1. Install the 54W battery for computers shipped with an aluminum chassis. 2. Install the base cover for computers shipped with an aluminum chassis. 3. Follow the procedure in After working inside your computer.
Speakers
Removing the speakers for computers shipped with a plastic chassis
NOTE: The information in this section is intended for authorized service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, Before working inside your computer. 2. Remove the base cover for computers shipped with a plastic chassis. 3. Remove the 41 W battery for computers shipped with a plastic chassis, or the 54 W battery for computers shipped with a
plastic chassis.
About this task The following image indicates the location of the sp

References

• Microsoft Support
• Microsoft Support

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