Dell Vostro 3420 User manual

Vostro 3420
Service Manual
Regulatory Model: P152G
Regulatory Type: P152G001/P152G003/P152G004/P152G005
April 2023
Rev. A01

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.
© 2022-2023 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.

Chapter 1: Working inside your computer...................................................................................... 6
Safety instructions.............................................................................................................................................................. 6
Before working inside your computer....................................................................................................................... 6
Safety precautions.........................................................................................................................................................7
Electrostatic discharge—ESD protection................................................................................................................7
ESD field service kit ..................................................................................................................................................... 8
Transporting sensitive components.......................................................................................................................... 9
After working inside your computer..........................................................................................................................9
BitLocker..........................................................................................................................................................................9
Chapter 2: Removing and installing components.......................................................................... 10
Recommended tools..........................................................................................................................................................10
Screw list............................................................................................................................................................................. 10
Major components of Vostro 3420................................................................................................................................ 11
Base cover........................................................................................................................................................................... 13
Removing the base cover...........................................................................................................................................13
Installing the base cover.............................................................................................................................................15
Battery..................................................................................................................................................................................16
Lithium-ion battery precautions............................................................................................................................... 16
Removing the battery..................................................................................................................................................17
Installing the battery....................................................................................................................................................17
Memory modules................................................................................................................................................................ 18
Removing the memory modules............................................................................................................................... 18
Installing the memory modules..................................................................................................................................19
Wireless card...................................................................................................................................................................... 20
Removing the wireless card......................................................................................................................................20
Installing the wireless card.........................................................................................................................................21
Fan........................................................................................................................................................................................ 23
Removing the fan........................................................................................................................................................ 23
Installing the fan.......................................................................................................................................................... 23
M.2 solid-state drive.........................................................................................................................................................24
Removing the M.2 2230 solid state drive..............................................................................................................24
Installing the M.2 2230 solid state drive................................................................................................................25
Removing the M.2 2280 solid state drive..............................................................................................................26
Installing the M.2 2280 solid state drive................................................................................................................ 27
Touchpad.............................................................................................................................................................................28
Removing the touchpad.............................................................................................................................................28
Installing the touchpad...............................................................................................................................................29
Power-adapter port..........................................................................................................................................................30
Removing the power-adapter port......................................................................................................................... 30
Installing the power-adapter port............................................................................................................................ 31
Speakers.............................................................................................................................................................................. 32
Removing the speakers..............................................................................................................................................32
Installing the speakers................................................................................................................................................ 33
Contents
Contents 3

Heat sink..............................................................................................................................................................................35
Removing the UMA heat sink...................................................................................................................................35
Installing the UMA heat sink..................................................................................................................................... 36
Removing the discrete heat sink..............................................................................................................................37
Installing the discrete heat sink............................................................................................................................... 38
Display assembly................................................................................................................................................................39
Removing the display assembly .............................................................................................................................. 39
Installing the display assembly..................................................................................................................................42
Display bezel.......................................................................................................................................................................45
Removing the display bezel.......................................................................................................................................45
Installing the display bezel ........................................................................................................................................46
Display panel....................................................................................................................................................................... 47
Removing the display panel.......................................................................................................................................47
Installing the display panel.........................................................................................................................................49
Display hinges..................................................................................................................................................................... 51
Removing the display hinges..................................................................................................................................... 51
Installing the display hinges ..................................................................................................................................... 52
Hinge caps.......................................................................................................................................................................... 54
Removing the hinge caps.......................................................................................................................................... 54
Installing the hinge caps ........................................................................................................................................... 55
Camera.................................................................................................................................................................................56
Removing the camera module .................................................................................................................................56
Installing the camera module ...................................................................................................................................57
Display cable.......................................................................................................................................................................58
Removing the eDP cable (Plastic).......................................................................................................................... 58
Installing the eDP cable (Plastic)............................................................................................................................ 59
Display back-cover and antenna assembly................................................................................................................. 60
Replacement of the display cover and antenna assembly.................................................................................60
I/O board..............................................................................................................................................................................61
Removing the Input/Output board.......................................................................................................................... 61
Installing the Input/Output board........................................................................................................................... 62
I/O daughter board FFC..................................................................................................................................................63
Removing the Input/Output daughterboard FFC................................................................................................63
Installing the Input/Output daughter board FFC.................................................................................................63
System board..................................................................................................................................................................... 65
UMA system board connectors .............................................................................................................................. 65
Removing the UMA system board.......................................................................................................................... 65
Installing the UMA system board.............................................................................................................................67
Discrete system board connectors......................................................................................................................... 70
Removing the discrete system board..................................................................................................................... 70
Installing the discrete system board....................................................................................................................... 72
Power button with fingerprint reader.......................................................................................................................... 74
Removing the power button with optional fingerprint reader.......................................................................... 74
Installing the power button with optional fingerprint reader............................................................................ 75
Palm-rest and keyboard assembly.................................................................................................................................76
Removing the palm-rest and keyboard assembly................................................................................................ 76
Installing the palm-rest and keyboard assembly.................................................................................................. 78
Chapter 3: Drivers and downloads............................................................................................... 80
4Contents

Chapter 4: BIOS setup................................................................................................................. 81
BIOS overview.................................................................................................................................................................... 81
Entering BIOS setup program......................................................................................................................................... 81
Navigation keys.................................................................................................................................................................. 81
One time boot menu......................................................................................................................................................... 82
System setup options.......................................................................................................................................................82
Updating the BIOS............................................................................................................................................................ 85
Updating the BIOS in Windows................................................................................................................................85
Updating the BIOS in Linux and Ubuntu................................................................................................................ 86
Updating the BIOS using the USB drive in Windows..........................................................................................86
Updating the BIOS from the F12 One-Time boot menu.....................................................................................86
System and setup password...........................................................................................................................................87
Assigning a system setup password....................................................................................................................... 87
Deleting or changing an existing system setup password.................................................................................88
Clearing BIOS (System Setup) and System passwords.......................................................................................... 88
Chapter 5: Troubleshooting.........................................................................................................89
Handling swollen Lithium-ion batteries........................................................................................................................ 89
Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................89
Running the SupportAssist Pre-Boot System Performance Check................................................................90
Built-in self-test (BIST)................................................................................................................................................... 90
M-BIST...........................................................................................................................................................................90
LCD Power rail test (L-BIST)....................................................................................................................................91
LCD Built-in Self Test (BIST)....................................................................................................................................91
System-diagnostic lights.................................................................................................................................................. 91
Recovering the operating system................................................................................................................................. 93
Real-Time Clock (RTC Reset)........................................................................................................................................93
Backup media and recovery options.............................................................................................................................93
WiFi power cycle............................................................................................................................................................... 93
Drain residual flea power (perform hard reset)......................................................................................................... 94
Chapter 6: Getting help and contacting Dell................................................................................ 95
Contents 5

Working inside your computer
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 you have read the safety information that shipped
with your computer.
WARNING: Before working inside your computer, read the safety information that is shipped with your
computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
WARNING: Disconnect your computer from all power sources before opening the computer cover or panels.
After you finish working inside the computer, replace all covers, panels, and screws before connecting your
computer to an electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is flat, dry, and clean.
CAUTION: To avoid damaging the components and cards, handle them by their edges, and avoid touching the
pins and the contacts.
CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical
assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the
safety instructions that is shipped with the product or at www.dell.com/regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal
surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal
surface to dissipate static electricity which could harm internal components.
CAUTION: When you disconnect a cable, pull it by its connector or its pull tab, not the cable itself. Some cables
have connectors with locking tabs or thumbscrews that you must disengage before disconnecting the cable.
When disconnecting cables, keep them evenly aligned to avoid bending the connector pins. When connecting
cables, ensure that the ports and the connectors are correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card reader.
CAUTION: Exercise caution when handling Lithium-ion batteries in laptops. Swollen batteries should not be used
and should be replaced and disposed properly.
NOTE: The color of your computer and certain components may appear differently than shown in this document.
Before working inside your computer
Steps
1. Save and close all open files and exit all open applications.
2. Shut down your computer. Click Start > Power > Shut down.
NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down
instructions.
3. Disconnect your computer and all attached devices from their electrical outlets.
4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
1
6 Working inside your computer

5. Remove any media card and optical disc from your computer, if applicable.
6. After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board.
CAUTION: Place the computer on a flat, soft, and clean surface to avoid scratches on the display.
7. Place the computer face down.
Safety precautions
The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
Observe the following safety precautions before you perform any installation or break/fix procedures involving disassembly or
reassembly:
●Turn off the system and all attached peripherals.
●Disconnect the system and all attached peripherals from AC power.
●Disconnect all network cables, telephone, and telecommunications lines from the system.
●Use an ESD field service kit when working inside any tabletnotebookdesktop to avoid electrostatic discharge (ESD) damage.
●After removing any system component, carefully place the removed component on an anti-static mat.
●Wear shoes with non-conductive rubber soles to reduce the chance of getting electrocuted.
Standby power
Dell products with standby power must be unplugged before you open the case. Systems that incorporate standby power are
essentially powered while turned off. The internal power enables the system to be remotely turned on (wake on LAN) and
suspended into a sleep mode and has other advanced power management features.
Unplugging, pressing and holding the power button for 15 seconds should discharge residual power in the system board.
Bonding
Bonding is a method for connecting two or more grounding conductors to the same electrical potential. This is done through
the use of a field service electrostatic discharge (ESD) kit. When connecting a bonding wire, ensure that it is connected to bare
metal and never to a painted or non-metal surface. The wrist strap should be secure and in full contact with your skin, and
ensure that you remove all jewelry such as watches, bracelets, or rings prior to bonding yourself and the equipment.
Electrostatic discharge—ESD protection
ESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards,
processors, memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such
as intermittent problems or a shortened product life span. As the industry pushes for lower power requirements and increased
density, ESD protection is an increasing concern.
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 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 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, etc.
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:
Working inside your computer 7

●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 system 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 system, 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 of 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 portable environment. Servers are
typically installed in a rack within a data center; desktops or portables 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 system 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
●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 of the bag is
shielded. Always place parts in your hand, on the ESD mat, in the system, 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 that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static
mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all
insulator parts while performing service and that they use anti-static bags for transporting sensitive components.
8Working inside your computer

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
NOTE: Leaving stray or loose screws inside your computer may severely damage your computer.
Steps
1. Replace all screws and ensure that no stray screws remain inside your computer.
2. Connect any external devices, peripherals, or cables you removed before working on your computer.
3. Replace any media cards, discs, or any other parts that you removed before working on your computer.
4. Connect your computer and all attached devices to their electrical outlets.
5. Turn on your computer.
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 this 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
Working inside your computer 9

Removing and installing components
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Recommended tools
The procedures in this document may require the following tools:
●Phillips screwdriver #0
●Plastic scribe
Screw list
NOTE: When removing screws from a component, it is recommended to note the screw type, 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 1. Screw list
Component Screw type Quantity Screw image
Base cover M2x5
Captive screw
4
4
3-cell battery
4-cell battery
M2x3
M2x3
3
5
M.2 solid-state drive M2x2 (O.D. 5 mm) 1
Wireless card M2x3.5 1
I/O board M2x3.5 2
Heat sink M2x3 - UMA
M2x3 - Discrete
4
7
2
10 Removing and installing components

Table 1. Screw list (continued)
Component Screw type Quantity Screw image
Fan M2x5 2
Power button with optional
fingerprint reader
M2x2 (O.D. 5 mm) 1
Display assembly M2.5x5 4
Display panel M2x2 2
Display hinges M2.5x3.8 6
System board M2x3
M2x2
3
1
USB Type-C Bracket M2x3 1
Touchpad
Touchpad bracket
M2x2 (O.D. 5 mm) 2
4
RF Bracket (for Aluminum and
3-cell battery only)
M2x2 (O.D. 7 mm) 2
Major components of Vostro 3420
The following image shows the major components of Vostro 3420.
Removing and installing components 11

1. Base cover 2. Battery
3. Speakers 4. Power button with optional fingerprint reader
5. Touchpad 6. Touchpad bracket
7. Power adapter port 8. SSD thermal shield
12 Removing and installing components

9. M.2 2280 SSD 10. Palm-rest and keyboard assembly
11. Display assembly 12. Memory modules
13. Wireless card with bracket 14. I/O board
15. System board 16. Heat sink
17. System fan 18. I/O cable
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.
Base cover
Removing the base cover
Prerequisites
1. Follow the procedure in Before working inside your computer.
About this task
NOTE: Before removing the base cover, ensure that there is no SD card installed in the SD card slot on your computer.
The following images indicate the location of the base cover and provide a visual representation of the removal procedure.
Removing and installing components 13

Steps
1. Remove the four screws (M2x5) that secure the base cover to the palm-rest and keyboard assembly.
2. Loosen the four captive screws that secure the base cover to the palm-rest and keyboard assembly.
3. Using a plastic scribe, pry open the base cover from the recesses located in the U-shaped indents at the top edge of the
base cover near the hinges.
4. Lift the base cover off the palm-rest and keyboard assembly.
5. Disconnect the battery cable from the system board.
6. Press and hold the power button for five seconds to ground the computer and drain the flea power.
14 Removing and installing components

Installing the base cover
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following images indicate the location of the base cover and provide a visual representation of the installation procedure.
Removing and installing components 15

Steps
1. Connect the battery cable to the connector on the system board.
2. Place and snap the base cover into place on the palm-rest and keyboard assembly.
3. Tighten the four captive screws that secure the base cover to the palm-rest and keyboard assembly.
4. Replace the four screws (M2x5) that secure the base cover to the palm-rest and keyboard assembly.
Next steps
1. Follow the procedure in After working inside your computer.
Battery
Lithium-ion battery precautions
CAUTION:
●Exercise caution when handling Lithium-ion batteries.
●Discharge the battery completely before removing it. Disconnect the AC power adapter from the system and
operate the computer solely on battery power—the battery is fully discharged when the computer no longer
turns on when the power button is pressed.
●Do not crush, drop, mutilate, or penetrate the battery with foreign objects.
●Do not expose the battery to high temperatures, or disassemble battery packs and cells.
●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.
16 Removing and installing components

●Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental
puncture or damage to the battery and other system components.
●If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing,
bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical
support for assistance. See www.dell.com/contactdell.
●Always purchase genuine batteries from www.dell.com or authorized Dell partners and resellers.
●Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how to
handle and replace swollen Lithium-ion batteries, see Handling swollen Lithium-ion batteries.
Removing the battery
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the base cover.
About this task
The following image indicates the location of the 3-cell battery and provides a visual representation of the removal procedure.
Steps
1. Disconnect the battery cable from the system board, if applicable.
2. Remove the three (M2x3) screws that secure the battery to the palm-rest and keyboard assembly.
NOTE: A 4-cell battery has five (M2x3) screws that secure the battery to the palm-rest and keyboard assembly.
3. Remove the battery from the palm-rest and keyboard assembly.
Installing the battery
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
Removing and installing components 17

About this task
The following image indicates the location of the 3-cell battery and provides a visual representation of the installation procedure.
Steps
1. Place the battery on the palm-rest and keyboard assembly.
2. Align the screw holes on the battery to the screw holes on the palm-rest and keyboard assembly.
3. Replace the three (M2x3) screws that secure the battery to the palm-rest and keyboard assembly.
NOTE: A 4-cell battery has five (M2x3) screws that secure the battery to the palm-rest and keyboard assembly.
4. Connect the battery cable to the connector on the system board.
Next steps
1. Install the base cover.
2. Follow the procedure in After working inside your computer.
Memory modules
Removing the memory modules
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the base cover.
About this task
The following images indicate the location of the memory modules and provide a visual representation of the removal procedure.
18 Removing and installing components

Steps
1. Using your fingertips, 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.
NOTE: Your computer may have up to two memory modules installed. Repeat steps 1 to 2 if there is a second memory.
module installed.
Installing the memory modules
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following images indicate the location of the memory modules and provide a visual representation of the installation
procedure.
Removing and installing components 19

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 until the securing clips click, locking the memory module in place.
NOTE: Repeat steps 1 to 3 if there is a second memory module to be installed into your computer.
Next steps
1. Install the base cover.
2. Follow the procedure in After working inside your computer.
Wireless card
Removing the wireless card
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the base cover.
About this task
The following images indicate the location of the wireless card and provide a visual representation of the removal procedure.
20 Removing and installing components