Table of Contents
- Inspiron 7391 2n1 Service Manual
- Working inside your computer
- Removing and installing components
- Device drivers
- System setup
- Troubleshooting
DELL 7391 User Manual
Displayed below is the user manual for 7391 by DELL which is a product in the Notebooks category. This manual has pages.
Related Manuals
Inspiron 7391 2n1
Service Manual
Regulatory Model: P113G
Regulatory Type: P113G001
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.
© 2018 - 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.
2019 - 07
Rev. A00
1 Working inside your computer....................................................................................................... 5
Safety instructions................................................................................................................................................................ 5
Before working inside your computer................................................................................................................................. 5
Before you begin .............................................................................................................................................................5
Electrostatic discharge—ESD protection.......................................................................................................................... 6
ESD field service kit ..............................................................................................................................................................6
Transporting sensitive components.................................................................................................................................... 7
After working inside your computer.................................................................................................................................... 7
2 Removing and installing components............................................................................................. 8
Recommended tools..............................................................................................................................................................8
Screw list................................................................................................................................................................................ 8
Disassembly and reassembly................................................................................................................................................ 9
Base cover........................................................................................................................................................................ 9
Battery............................................................................................................................................................................. 12
Wireless card...................................................................................................................................................................15
Power-adapter port....................................................................................................................................................... 18
I/O board........................................................................................................................................................................ 20
Fan...................................................................................................................................................................................22
Solid-state drive.............................................................................................................................................................24
Coin-cell battery.............................................................................................................................................................27
Touchpad........................................................................................................................................................................29
Speakers.......................................................................................................................................................................... 31
Heat sink......................................................................................................................................................................... 33
Display assembly............................................................................................................................................................ 35
System board................................................................................................................................................................. 38
Keyboard.........................................................................................................................................................................43
Power button with fingerprint reader......................................................................................................................... 47
Palm-rest and antenna assembly.................................................................................................................................49
3 Device drivers............................................................................................................................ 52
Intel Chipset Software Installation Utility......................................................................................................................... 52
Video drivers........................................................................................................................................................................ 52
Intel Serial IO driver............................................................................................................................................................. 52
Intel Trusted Execution Engine Interface......................................................................................................................... 52
Intel Virtual Button driver................................................................................................................................................... 52
Wireless and Bluetooth drivers.......................................................................................................................................... 52
4 System setup.............................................................................................................................53
System setup....................................................................................................................................................................... 53
Entering BIOS setup program............................................................................................................................................53
Navigation keys....................................................................................................................................................................53
Boot Sequence.................................................................................................................................................................... 53
System setup options......................................................................................................................................................... 54
Contents
Contents 3
System and admin password..............................................................................................................................................61
Assigning a system setup password........................................................................................................................... 62
Deleting or changing an existing system/admin password......................................................................................62
Clearing CMOS settings............................................................................................................................................... 62
Clearing BIOS (System Setup) and System passwords...........................................................................................62
5 Troubleshooting......................................................................................................................... 63
Enhanced Pre-Boot System Assessment (ePSA) diagnostics......................................................................................63
Running the ePSA diagnostics.....................................................................................................................................63
System diagnostic lights.....................................................................................................................................................63
Recovering the operating system..................................................................................................................................... 64
Flashing BIOS (USB key)....................................................................................................................................................64
Flashing the BIOS................................................................................................................................................................65
Enabling Intel Optane memory...........................................................................................................................................65
Disabling Intel Optane memory..........................................................................................................................................65
WiFi power cycle................................................................................................................................................................. 65
Flea power release...............................................................................................................................................................66
4 Contents
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.
NOTE: Before working inside your computer, read the safety information that shipped with your computer. For more
safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.
NOTE: Disconnect all power sources before opening the computer cover or panels. After you finish working inside the
computer, replace all covers, panels, and screws before connecting to the electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is flat and clean.
CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by
its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.
CAUTION: 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 shipped with the product or at www.dell.com/regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself by using a wrist grounding strap or by
periodically 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 on its connector or on its pull tab, not on the cable itself. Some cables have
connectors with locking tabs or thumb-screws that you must disengage before disconnecting the cable. When
disconnecting cables, keep them evenly aligned to avoid bending any connector pins. When connecting cables, ensure
that the ports and connectors are correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card reader.
NOTE: The color of your computer and certain components may appear differently than shown in this document.
Before working inside your computer
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Before you begin
1. Save and close all open files and exit all open applications.
2. Shut down your computer. Click Start > Power > Shut down.
NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down
instructions.
3. Disconnect your computer and all attached devices from their electrical outlets.
4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
5. Remove any media card and optical disc from your computer, if applicable.
1
Working inside your computer 5
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:
• 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
6Working inside your computer
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.
Transporting sensitive components
When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in
anti-static bags for safe transport.
Lifting equipment
Adhere to the following guidelines when lifting heavy weight equipment:
CAUTION: Do not lift greater than 50 pounds. Always obtain additional resources or use a mechanical lifting device.
1. Get a firm balanced footing. Keep your feet apart for a stable base, and point your toes out.
2. Tighten stomach muscles. Abdominal muscles support your spine when you lift, offsetting the force of the load.
3. Lift with your legs, not your back.
4. Keep the load close. The closer it is to your spine, the less force it exerts on your back.
5. Keep your back upright, whether lifting or setting down the load. Do not add the weight of your body to the load. Avoid twisting your
body and back.
6. Follow the same techniques in reverse to set the load down.
After working inside your computer
CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.
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.
Working inside your computer 7
Removing and installing components
Recommended tools
The procedures in this document may require the following tools:
• Philips screwdriver #1
• Flat-head screwdriver
• 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 surface when
replacing a component.
NOTE: Screw color may vary with the configuration ordered.
Table 1. Screw list
Component Secured to Screw type Quantity Screw image
Base cover Palm-rest assembly M2x4 6
Battery Palm-rest assembly M1.6x4 1
Battery Palm-rest assembly M2x2 Big Head 4
Fan Palm-rest assembly M2x2 2
Display hinges Palm-rest assembly M2x3.5 5
Keyboard Palm-rest assembly M1.2x1.3 4
Keyboard bracket Palm-rest assembly M1.2x1.8 29
Power-adapter port Palm-rest assembly M2x3 1
Solid-state drive Palm-rest assembly M2x2 1
System board Palm-rest assembly M2x2 Big Head 4
2
8 Removing and installing components
Component Secured to Screw type Quantity Screw image
Touchpad bracket Palm-rest assembly M1.6x2 3
Touchpad Palm-rest assembly M1.6x2 2
Wireless-card bracket System board M2x3 1
Disassembly and reassembly
Base cover
Removing the base cover
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1. Loosen the two captive screws that secure the base cover to the palm-rest assembly.
2. Remove the six screws (M2x4) that secure the base cover to the palm-rest assembly.
3. Using a plastic scribe, pry the base cover from the tabs on the hinges and continue to pry the base cover from the slots on the palm-
rest assembly.
CAUTION: Do not pry the base cover from the middle as it might damage the chassis.
4. Carefully remove the base cover off the palm-rest assembly.
Removing and installing components 9
NOTE: Disconnect the battery cable only when you continue to remove other components from your computer.
5. Disconnect the battery cable from the system board.
Replacing the base cover
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
10 Removing and installing components
Procedure
1. Connect the battery cable to the system board, if applicable.
2. Align the tabs on the base cover with the slots on the palm-rest assembly and snap the base cover to the palm-rest assembly.
3. Tighten the two captive screws that secure the base cover to the palm-rest assembly.
4. Replace the six screws (M2x4) that secure the base cover to the palm-rest assembly.
Removing and installing components 11
Battery
Removing the battery
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Lithium-ion battery precautions
CAUTION:
• Exercise caution when handling Lithium-ion batteries.
• Discharge the battery as much as possible before removing it from the system. This can be done by disconnecting
the AC adapter from the system to allow the battery to drain.
• 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 system components.
• If a battery gets stuck in a device as a result of swelling, do not try to free it as puncturing, bending, or crushing a
Lithium-ion battery can be dangerous. In such an instance, contact for assistance and further instructions.
• 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.
12 Removing and installing components
Prerequisites
Remove the base cover.
Procedure
1. Disconnect the battery cable from the system board (applicable only if not disconnected earlier).
2. Remove the screw (M1.6x4) that secures the battery to the palm-rest assembly.
3. Remove the four screws (M2x2) that secure the battery to the palm-rest assembly.
4. Lift the battery off the palm-rest assembly.
5. Turn the computer over, open the display, and then press and hold the power button for five seconds to ground the system board.
Removing and installing components 13
Replacing the battery
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1. Using the alignment posts, place the battery on the palm-rest assembly.
2. Replace the four screws (M2x2) that secure the battery to the palm-rest assembly.
3. Replace the screw (M1.6x4) that secures the battery to the palm-rest assembly.
4. Connect the battery cable to the system board.
14 Removing and installing components
Post-requisites
Replace the base cover.
Wireless card
Removing the wireless card
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1. Lift the flap on the wireless card.
Removing and installing components 15
2. Remove the screw (M2x3) that secures the wireless-card bracket to the wireless card and palm-rest assembly.
3. Remove the wireless-card bracket from the wireless card.
4. Disconnect the antenna cables from the wireless card.
5. Slide and remove the wireless card from the wireless-card slot.
Replacing the wireless card
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
16 Removing and installing components
Procedure
CAUTION: To avoid damage to the wireless card, do not place any cables under it.
1. Lift he flap on the wireless card slot.
2. 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 2. Antenna-cable color scheme
Connectors on the wireless card Antenna-cable color
Main (white triangle) White
Auxiliary (black triangle) Black
3. Align the notch on the wireless card with the tab on the wireless-card slot and insert the wireless card at an angle into the wireless-
card slot.
4. Align the screw hole on the wireless-card bracket with the screw hole on the wireless card and palm-rest assembly.
5. Replace the screw (M2x3) that secures the wireless-card bracket to the wireless card and palm-rest assembly.
Removing and installing components 17
Post-requisites
Replace the base cover.
Power-adapter port
Removing the power-adapter port
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1. Remove the three screws (M2x3.5) that secure the left display hinge to the system board.
2. Lift the left display hinge from the system board.
3. Disconnect the power-adapter port cable from the system board.
4. Remove the screw (M2x3) that secures the power-adapter port to the palm-rest assembly.
5. Lift the power-adapter port, along with its cable, off the palm-rest assembly.
18 Removing and installing components
Replacing the power-adapter port
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1. Place the power-adapter port into the slot on the palm-rest assembly.
2. Replace the screw (M2x3) that secures the power-adapter port to the palm-rest assembly.
3. Connect the power-adapter port cable to the system board.
4. Close the left display hinge.
5. Replace the three screws (M2x3.5) that secure the left display hinge to the system board.
Removing and installing components 19
Post-requisites
Replace the base cover.
I/O board
Removing the I/O board
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1. Remove the two screws (M2x3.5) that secure the right display hinge to the I/O board.
2. Lift the right display hinge away from the I/O board.
3. Peel the tape that secures the I/O-board cable to the I/O board.
4. Open the latch and disconnect the I/O-board cable from the I/O board.
5. Slide and lift the I/O board off the palm-rest assembly.
20 Removing and installing components
Replacing the I/O board
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1. Slide the I/O board into the slots on the palm-rest assembly.
2. Slide the I/O-board cable into the connector on the I/O board and close the latch to secure the cable.
3. Adhere the tape that secures the I/O-board cable to the I/O board.
4. Close the right display hinge.
5. Replace the two screws (M2x3.5) that secure the right display hinge to the I/O board.
Removing and installing components 21
Post-requisites
Replace the base cover.
Fan
Removing the fan
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1. Disconnect the fan cable from the system board.
2. Peel the tape that secures the fan cable to the fan.
3. Remove the two screws (M2x2) that secure the fan to the palm-rest assembly.
4. Lift the fan off the palm-rest assembly.
22 Removing and installing components
Replacing the fan
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1. Using the alignment posts, place the fan on the palm-rest assembly.
2. Replace the two screws (M2x3) that secure the fan to the palm-rest assembly.
3. Adhere the tape that secures the fan cable to the fan.
4. Connect the fan cable to the system board.
Removing and installing components 23
Post-requisites
Replace the base cover.
Solid-state drive
Removing the solid-state drive
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
CAUTION: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
CAUTION: To avoid data loss, do not remove the solid-state drive while the computer is in sleep or on state.
Prerequisites
Remove the base cover.
Procedure to remove M.2 2230 solid-state drive
1. Remove the two screws (M2x3) that secure the solid-state drive to the palm-rest assembly.
2. Slide and remove the solid-state drive bracket from the solid-state drive slot.
3. Slide and remove the solid-state drive from the solid-state drive slot.
24 Removing and installing components
Procedure to remove M.2 2280 solid-state drive
1. Locate the solid-state drive/Intel Optane storage module on your computer.
Removing and installing components 25
2. Remove the screw (M2x2) that secures the solid-state drive/Intel Optane storage module to the palm-rest assembly.
3. Slide and remove the solid-state drive/Intel Optane storage module from the solid-state drive slot.
Replacing the solid-state drive
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
CAUTION: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
Procedure to replace M.2 2230 solid-state drive
1. Align the notch on the solid-state drive with the tab on the solid-state drive slot and slide the solid-state drive firmly into the solid-
state drive slot at an angle.
2. Peel the tape from the solid-state drive bracket.
3. Adhere the solid-state drive bracket on the system board and secure the solid-state drive.
4. Replace the two screws (M2x3) that secure the solid-state drive to the palm-rest assembly.
26 Removing and installing components
Procedure to replace M.2 2280 solid-state drive
1. Align the notch on the solid-state drive/Intel Optane storage module with the tab on the solid-state drive slot.
2. Replace the screw (M2x2) that secures the solid-state drive/Intel Optane storage module to the palm-rest assembly.
Post-requisites
Replace the base cover.
Coin-cell battery
Removing the coin-cell battery
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default. It is recommended that
you note the BIOS setup program’s settings before removing the coin-cell battery.
Prerequisites
1. Remove the base cover.
Removing and installing components 27
2. Remove the battery.
Procedure
1. Peel the tape that secures the coin-cell battery cable to the palm-rest assembly.
2. Release the coin-cell battery cable from the routing guides on the palm-rest assembly.
3. Disconnect the coin-cell battery cable from the system board.
4. Peel the coin-cell battery off the palm-rest assembly.
Replacing the coin-cell battery
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1. Adhere the coin-cell battery to the palm-rest assembly.
2. Connect the coin-cell battery cable to the system board.
3. Route the coin-cell battery cable through the routing guides on the palm-rest assembly.
4. Adhere the tape that secures the coin-cell battery cable to the palm-rest assembly.
28 Removing and installing components
Post-requisites
1. Replace the battery.
2. Replace the base cover.
Touchpad
Removing the touchpad
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Prerequisites
1. Remove the base cover.
2. Remove the battery.
Procedure
1. Peel off the tapes that secures the speaker cable to the touchpad bracket.
2. Remove the three screws (M1.6x2) that secure the touchpad bracket to the palm-rest assembly.
3. Lift the touchpad bracket off the palm-rest assembly.
4. Open the latch and disconnect the touchpad cable from the touchpad and peel the touchpad cable off the palm-rest assembly.
5. Peel off the tapes that secure the touchpad to the palm-rest assembly.
6. Remove the two screws (M1.6x2) that secure the touchpad bracket to the palm-rest assembly.
7. Lift the touchpad off the palm-rest assembly.
Removing and installing components 29
Replacing the touchpad
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1. Slide the touchpad into the slot on the palm-rest assembly.
2. Replace the two screws (M1.6x2) that secure the touchpad to the palm-rest assembly.
3. Adhere the tapes that secure the touchpad to the palm-rest assembly.
4. Adhere the touchpad cable to palm-rest assembly and slide the touchpad cable into the connector on the touch pad and close the
latch to secure the cable.
5. Align the screw holes on the touchpad bracket with the screw holes on the palm-rest assembly.
6. Replace the three screws (M2x3) that secure the touchpad bracket to the palm-rest assembly.
7. Adhere the tapes that secure the touch-pad assembly to the palm-rest assembly.
30 Removing and installing components
Post-requisites
1. Replace the battery.
2. Replace the base cover.
Speakers
Removing the speakers
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Prerequisites
1. Remove the base cover.
2. Remove the battery.
Procedure
1. Peel the tape that secures the speaker cable to the connector.
2. Disconnect the speaker cable from the system board.
3. Peel off the tapes and release the speaker cable from the routing guides on the palm-rest assembly.
4. Remove the speaker cable from the routing guides on the palm-rest assembly.
5. Lift the speakers off the palm-rest assembly.
Removing and installing components 31
Replacing the speakers
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1. Using the alignment posts on the palm-rest assembly, place the speakers on the palm-rest assembly.
2. Route the speaker cable through the routing guides on the palm-rest assembly.
3. Adhere the tapes that secure the speaker cable to the touchpad bracket.
4. Connect the speaker cable to the system board.
5. Adhere the tape that secures the speaker cable to the connector.
32 Removing and installing components
Post-requisites
1. Replace the battery.
2. Replace the base cover.
Heat sink
Removing the heat sink
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you
touch it.
CAUTION: 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.
Prerequisites
1. Remove the base cover.
2. Remove the fan.
Procedure
1. In reverse order (as indicated on the heat sink), loosen the four captive screws that secure the heat sink to the system board.
2. Lift the heat sink off the system board.
Removing and installing components 33
Replacing the heat sink
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
CAUTION: Incorrect alignment of the heat sink can damage the system board and processor.
NOTE: If either the system board or the heat sink is replaced, use the thermal pad/paste provided in the kit to ensure
that thermal conductivity is achieved.
Procedure
1. Align the screw holes on the heat sink with the screw holes on the system board.
2. In sequential order (as indicated on the heat sink), tighten the four captive screws that secure the heat sink to the system board.
34 Removing and installing components
Post-requisites
1. Replace the fan.
2. Replace the base cover.
Display assembly
Removing the display assembly
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Prerequisites
1. Remove the base cover.
2. Remove the fan.
Procedure
1. Peel the tape that secures the touchscreen-board cable to the system board.
2. Open the latch and disconnect the touchscreen-board cable from the system board.
3. Peel the tape to release the touchscreen-board cable and remove the cable from the routing guides on the palm-rest assembly.
4. Peel the tape that secures the display cable to the system board.
5. Open the latch and disconnect the display cable from the system board.
6. Peel the tape that secures the display cable to the system board.
7. Remove the display cable from the routing guide on the palm-rest assembly.
Removing and installing components 35
8. Turn the computer over and open the display as far as possible.
CAUTION: Place the computer on a soft and clean surface to avoid scratching the display.
9. Turn the computer over and remove the five screws (M2.5x3.5) that secure the display hinges to the I/O board and system board.
10. Lift the display assembly off the palm-rest assembly.
Replacing the display assembly
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
36 Removing and installing components
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
CAUTION: Place the computer on a soft and clean surface to avoid scratching the display.
1. Place the display assembly on the palm-rest assembly. Align the screw holes on the display hinges with the screw holes on the I/O
board and system board.
2. Replace the five screws (M2.5x3.5) that secure the display hinges to the I/O board and system board.
3. Close the display.
4. Route the display cable through the routing guide on the palm-rest assembly.
5. Adhere the tape that secures the display cable to the system board.
6. Connect the display cable to the system board and close the latch to secure the cable.
7. Adhere the tape that secures the display cable to the system board.
8. Route the touchscreen-board cable through the routing guides on the palm-rest assembly, and adhere the tape that secures the
touchscreen-board cable to the palm-rest assembly.
9. Slide the touchscreen-board cable into the connector on the system board and close the latch to secure the cable.
10. Adhere the tape that secures the touchscreen-board cable to the system board.
Removing and installing components 37
Post-requisites
1. Replace the fan.
2. Replace the base cover.
System board
Removing the system board
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup
program after you replace the system board.
NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You
must make the appropriate changes again after you replace the system board.
NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can
reconnect the cables correctly after you replace the system board.
Prerequisites
1. Remove the base cover.
2. Remove the battery.
3. Remove the solid-state drive.
4. Remove the wireless card.
5. Remove the fan.
NOTE: Remove the heat sink from the system board only when you want to replace the system board. To replace the
keyboard, power button with fingerprint reader, and palm-rest and antenna assembly, remove the system board
assembly along with the heat sink.
38 Removing and installing components
6. Remove the heat sink.
Procedure
1. Remove the three screws (M2x3.5) that secure the left display hinge to the system board.
2. Lift the left display hinge from the system board.
3. Peel the tape that secures the display cable to the system board.
4. Open the latch and disconnect the display cable from the system board.
5. Peel the tape that secures the display cable to the system board.
6. Disconnect the power-adapter port cable from the system board.
7. Peel the tape that secures the speaker cable to the connector.
8. Disconnect the speaker cable from the system board.
9. Open the latch, and disconnect the keyboard cable from the system board.
10. Open the latch, and disconnect the keyboard-backlight cable from the system board.
11. Open the latch, and disconnect the touchpad cable from the system board.
12. Disconnect the coin-cell battery cable from the system board.
13. Peel the tape that secures the I/O-board cable to the system board.
14. Open the latch and disconnect the I/O-board cable from the system board.
15. Peel the tape that secures the touch-screen board cable to the system board.
16. Open the latch and disconnect the touch-screen board cable from the system board.
17. Open the latch and disconnect the fingerprint-reader cable from the system board.
Removing and installing components 39
18. Remove the four screws (M2x2) that secure the system board to the palm-rest assembly.
19. Lift the system board off the palm-rest assembly.
Replacing the system board
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
40 Removing and installing components
NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup
program after you replace the system board.
NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You
must make the appropriate changes again after you replace the system board.
Procedure
1. Align the screw holes on the system board with the screw holes on the palm-rest assembly.
2. Replace the four screws (M2x2) that secure the system board to the palm-rest assembly.
3. Slide the fingerprint-reader cable to the system board and close the latch to secure the cable.
4. Slide the touch-screen board cable to the system board and close the latch to secure the cable.
5. Adhere the tape that secures the touch-screen board cable to the system board.
6. Slide the I/O-board cable to the system board and close the latch to secure the cable.
7. Adhere the tape that secures the I/O-board cable to the system board.
8. Connect the coin-cell battery cable to the system board.
9. Slide the touchpad cable to the system board and close the latch to secure the cable.
10. Slide the keyboard-backlight cable to the system board and close the latch to secure the cable.
11. Slide the keyboard cable to the system board and close the latch to secure the cable.
12. Connect the speaker cable to the system board.
13. Adhere the tape that secures the speaker cable to the connector.
14. Connect the power-adapter port cable to the system board.
15. Adhere the tape that secures the display cable to the system board.
16. Slide the display cable to the system board and close the latch to secure the cable.
17. Adhere the tape that secures the display cable to the system board.
Removing and installing components 41
18. Close the left display hinge.
19. Replace the three screws (M2x3.5) that secure the left display hinge to the system board.
Post-requisites
1. Replace the heat sink.
2. Replace the fan.
3. Replace the wireless card.
4. Replace the solid-state drive.
5. Replace the battery.
42 Removing and installing components
6. Replace the base cover.
Entering the Service Tag in the BIOS setup program
1. Turn on or restart your computer.
2. Press F2 when the Dell logo is displayed to enter the BIOS setup program.
3. Navigate to the Main tab and enter the Service Tag in the Service Tag Input field.
NOTE: Service tag is the alphanumeric identifier located at the back side of your computer.
Keyboard
Removing the keyboard
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Prerequisites
1. Remove the base cover.
2. Remove the battery.
3. Remove the solid-state drive.
4. Remove the coin-cell battery.
5. Remove the wireless card.
6. Remove the speakers.
7. Remove the fan.
8. Remove the display assembly.
9. Remove the I/O board.
10. Remove the power button with fingerprint reader.
11. Remove the system board.
Procedure
1. Peel the fingerprint-reader cable from the keyboard bracket.
2. Peel the tapes that secure the antenna cables to the keyboard bracket.
3. Remove the antenna cables from the routing guides on the keyboard bracket.
Removing and installing components 43
4. Remove the 29 screws (M1.2x1.8) that secures the keyboard bracket to the keyboard.
NOTE: Lift the plastic sheet on the keyboard bracket to access the screws.
5. Lift the keyboard bracket off the keyboard.
6. Remove the 4 screws (M1.2x1.8) that secure the keyboard to the palm-rest assembly.
7. Lift the keyboard off the palm-rest assembly.
44 Removing and installing components
Replacing the keyboard
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1. Align the screw holes on the keyboard with the screw holes on the palm-rest assembly.
2. Replace the 4 screws (M1.2x1.8) that secure the keyboard to palm-rest assembly.
Removing and installing components 45
3. Align the screws holes on the keyboard bracket with the screw holes on the keyboard.
4. Replace the 29 screws (M1.2x1.8) that secure the keyboard bracket to keyboard.
5. Replace the plastic sheet on the keyboard bracket.
6. Adhere the tapes that secure the antenna cables to the keyboard bracket.
7. Adhere the fingerprint-reader cable to the keyboard bracket.
46 Removing and installing components
Post-requisites
1. Replace the system board.
2. Replace the power button with fingerprint reader
3. Replace the I/O board.
4. Replace the display assembly.
5. Replace the fan.
6. Replace the speakers.
7. Replace the wireless card.
8. Replace the coin-cell battery.
9. Replace the solid-state drive.
10. Replace the battery.
11. Replace the base cover.
Power button with fingerprint reader
Removing the power button with fingerprint reader
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
NOTE: Applicable only for computers that are shipped with fingerprint reader.
Prerequisites
1. Remove the base cover.
2. Remove the battery.
3. Remove the solid-state drive.
4. Remove the coin-cell battery.
Removing and installing components 47
5. Remove the wireless card.
6. Remove the speakers.
7. Remove the fan.
8. Remove the display assembly.
9. Remove the I/O board.
10. Remove the system board.
Procedure
1. Follow the procedure from step 1 to step 5 in "Removing the keyboard".
2. Open the latch and disconnect the fingerprint-reader cable from the power button with fingerprint-reader.
3. Lift the power button with fingerprint-reader, along with the power button cable, off the keyboard bracket.
4. Peel the tape and remove the power button with fingerprint-reader from the keyboard bracket.
Replacing the power button with fingerprint reader
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
NOTE: Applicable only for computers that are shipped with fingerprint reader.
Procedure
1. Align the power button with fingerprint reader on the keyboard bracket and adhere the tape that secures the power button with
fingerprint reader on the keyboard bracket.
2. Place the power button with fingerprint reader on the keyboard bracket.
3. Connect the fingerprint-reader cable to power button with fingerprint reader and close the latch to secure the cable.
48 Removing and installing components
4. Follow the procedure from step 3 to step 8 in "Replacing the keyboard".
Post-requisites
1. Replace the system board.
2. Replace the I/O board.
3. Replace the display assembly.
4. Replace the fan.
5. Replace the speakers.
6. Replace the wireless card.
7. Replace the coin-cell battery.
8. Replace the solid-state drive.
9. Replace the battery.
10. Replace the base cover.
Palm-rest and antenna assembly
Removing the palm-rest and antenna assembly
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Prerequisites
1. Remove the base cover.
2. Remove the battery.
3. Remove the wireless card.
4. Remove the power-adapter port.
5. Remove the I/O board.
6. Remove the fan.
Removing and installing components 49
7. Remove the solid-state drive.
8. Remove the coin-cell battery.
9. Remove the touch pad.
10. Remove the speakers.
11. Remove the display assembly.
12. Remove the system board.
13. Remove the keyboard.
14. Remove the power button with fingerprint reader.
Procedure
After performing the steps in prerequisites, we are left with the palm rest.
Replacing the palm-rest and antenna assembly
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
Place the palm rest on a flat surface.
Post-requisites
1. Replace the power button with fingerprint reader.
2. Replace the keyboard.
3. Replace the system board.
4. Replace the display assembly.
5. Replace the speakers.
6. Replace the touch pad.
7. Replace the coin-cell battery.
50 Removing and installing components
Device drivers
Intel Chipset Software Installation Utility
In the Device Manager, check if the chipset driver is installed.
Install the Intel chipset updates from www.dell.com/support.
Video drivers
In the Device Manager, check if the video driver is installed.
Install the video driver update from www.dell.com/support.
Intel Serial IO driver
In the Device Manager, check if the Intel Serial IO driver is installed.
Install the driver updates from www.dell.com/support.
Intel Trusted Execution Engine Interface
In the Device Manager, check if the Intel Trusted Execution Engine Interface driver is installed.
Install the driver update from www.dell.com/support.
Intel Virtual Button driver
In the Device Manager, check if the Intel Virtual Button driver is installed.
Install the driver updates from www.dell.com/support.
Wireless and Bluetooth drivers
In the Device Manager, check if the network card driver is installed.
Install the driver updates from www.dell.com/support.
In the Device Manager, check if the Bluetooth driver is installed.
Install the driver updates from www.dell.com/support.
3
52 Device drivers
System setup
NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed.
Topics:
•System setup
•Entering BIOS setup program
•Navigation keys
•Boot Sequence
•System setup options
•System and admin password
System setup
CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain
changes can make your computer work incorrectly.
NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen
information for future reference.
Use the BIOS Setup program for the following purposes:
• Get information about the hardware installed in your computer, such as the amount of RAM and the size of the hard drive.
• Change the system configuration information.
• Set or change a user-selectable option, such as the user password, type of hard drive installed, and enabling or disabling base devices.
Entering BIOS setup program
Turn on (or restart) your computer and press F2 immediately.
Navigation keys
NOTE: For most of the System Setup options, changes that you make are recorded but do not take effect until you
restart the system.
Keys Navigation
Up arrow Moves to the previous field.
Down arrow Moves to the next field.
Enter Selects a value in the selected field (if applicable) or follow the link in the field.
Spacebar Expands or collapses a drop-down list, if applicable.
Tab Moves to the next focus area.
Esc Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a message
that prompts you to save any unsaved changes and restarts the system.
Boot Sequence
Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example:
optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can:
4
System setup 53
• Access System Setup by pressing F2 key
• Bring up the one-time boot menu by pressing F12 key
The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options are:
• Removable Drive (if available)
• STXXXX Drive (if available)
NOTE: XXX denotes the SATA drive number.
• Optical Drive (if available)
• SATA Hard Drive (if available)
• Diagnostics
NOTE: Choosing Diagnostics, will display the ePSA diagnostics screen.
The boot sequence screen also displays the option to access the System Setup screen.
System setup options
NOTE: Depending on this computer and its installed devices, the items that are listed in this section may or may not be
displayed.
Table 3. System setup options—System information menu
Overview
BIOS Version Displays the BIOS version number.
Service Tag Displays the Service Tag of the computer.
Asset Tag Displays the Asset Tag of the computer.
Ownership Tag Displays the ownership tag of the computer.
Manufacture Date Displays the manufacture date of the computer.
Ownership Date Displays the ownership date of the computer.
Express Service Code Displays the express service code of the computer.
Ownership Tag Displays the ownership tag of the computer.
Signed Firmware Update Displays whether the signed firmware update is enabled.
Battery Displays the battery health information.
Primary Displays the primary battery.
Battery Level Displays the battery level.
Battery State Displays the battery state.
Health Displays the battery health.
AC Adapter Displays whether an AC adapter is installed.
Processor Information
Processor Type Displays the processor type.
Maximum Clock Speed Displays the maximum processor clock speed.
Core Count Displays the number of cores on the processor.
Processor L2 Cache Displays the processor L2 Cache size.
Processor ID Displays the processor identification code.
Processor L3 Cache Displays the processor L3 Cache size.
Current Clock Speed Displays the current processor clock speed.
Minimum Clock Speed Displays the minimum processor clock speed.
54 System setup
Overview
Microcode Version Displays the microcode version.
Intel Hyper-Threading Capable Displays whether the processor is Hyper-Threading (HT) capable.
64-Bit Technology Displays whether 64-bit technology is used.
Memory Information
Memory Installed Displays the total computer memory installed.
Memory Available Displays the total computer memory available.
Memory Speed Displays the memory speed.
Memory Channel Mode Displays single or dual channel mode.
Memory Technology Displays the technology that is used for the memory.
Device Information
Video Controller Displays the integrate graphics information of the computer.
dGPU Video Controller Displays the discrete graphics information of the computer.
Video BIOS Version Displays the video BIOS version of the computer.
Video Memory Displays the video memory information of the computer.
Panel Type Displays the Panel Type of the computer.
Native Resolution Displays the native resolution of the computer.
Audio Controller Displays the audio controller information of the computer.
Wi-Fi Device Displays the wireless device information of the computer.
Bluetooth Device Displays the Bluetooth device information of the computer.
Table 4. System setup options—Boot options menu
Boot options
Advanced Boot Options
Enable UEFI Network Stack Enables or disables UEFI Network Stack.
Default: OFF.
Boot Mode
Boot Mode: UEFI only Displays the boot mode of this computer.
Enable Boot Devices Enables or disables boot devices for this computer.
Boot Sequence Displays the boot sequence.
BIOS Setup Advanced Mode Enables or disables advanced BIOS settings.
Default: ON.
UEFI Boot Path Security Enables or disables the system to prompt the user to enter the Admin password
when booting a UEFI boot path from the F12 boot menu.
Default: Always Except Internal HDD.
Table 5. System setup options—System Configuration menu
System Configuration
Date/Time
Date Sets the computer date in MM/DD/YYYY format. Changes to the date take effect
immediately.
System setup 55
System Configuration
Time Sets the computer time in HH/MM/SS 24-hour format. You can switch between 12-
hour and 24-hour clock. Changes to the time take effect immediately.
Enable SMART Reporting Enables or disables SMART (Self-Monitoring, Analysis, and Reporting Technology)
during computer startup to report hard drive errors.
Default: OFF.
Enable Audio Enables or disables all integrated audio controller.
Default: ON.
Enable Microphone Enables or disables microphone.
Default: ON.
Enable Internal Speaker Enables or disables internal speaker.
Default: ON.
USB Configuration
Enable Boot Support Enables or disables booting from USB mass storage devices such as external hard
drive, optical drive, and USB drive.
Enable External USB Ports Enables or disables USB ports to be functional in an operating system environment.
SATA Operation Configures operating mode of the integrated SATA hard drive controller.
Default: RAID. SATA is configured to support RAID (Intel Rapid Restore Technology).
Drives Enables or disables various onboard drives.
M.2 PCIe SSD-0/SATA-2 Default: ON.
SATA-0 Default: ON.
Drive Information Displays the information of various onboard drives.
Miscellaneous Devices Enables or disables various onboard devices.
Enable Camera Enables or disables the camera.
Default: ON.
Keyboard Illumination Configures the operating mode of the keyboard illumination feature.
Default: Disabled. The keyboard illumination will always be off.
Keyboard Backlight Timeout on AC Configures the timeout value for the keyboard when an AC adapter is connected to
the computer. The keyboard backlight timeout value is only effect when the backlight
is enabled.
Default: 10 seconds.
Keyboard Backlight Timeout on Battery Configures the timeout value for the keyboard when the computer is running on
battery. The keyboard backlight timeout value is only effect when the backlight is
enabled.
Default: 10 seconds.
Touchscreen Enables or disables the touchscreen for the operating system.
NOTE: Touchscreen will always work in the BIOS setup irrespective of
this setting.
Default: ON.
Table 6. System setup options—Video menu
Video
LCD Brightness
56 System setup
Video
Brightness on battery power Sets the screen brightness when the computer is running on battery power.
Brightness on AC power Sets the screen brightness when the computer is running on AC power.
EcoPower Enables or disables EcoPower which increases the battery life by reducing the screen
brightness when appropriate.
Default: ON.
Table 7. System setup options—Security menu
Security
Enable Admin Setup Lockout Enables or disables the user from entering BIOS Setup when an Admin Password is
set.
Default: OFF.
Password Bypass Bypass the System (Boot) Password and the internal hard drive password prompts
during a system restart.
Default: Disabled.
Enable Non-Admin Password Changes Enables or disables the user to change the system and hard drive password without
the need for admin password.
Default: ON.
Non-Admin Setup Changes
Allow Wireless Switch Changes Enables or disables changes to the setup option when an Administrator password is
set.
Default: OFF.
Enable UEFI Capsule Firmware Updates Enables or disables BIOS updates through UEFI capsule update packages.
Computrace Enable or disable the BIOS module interface of the optional Computrace(R) Service
from Absolute Software.
Intel Platform Trust Technology On Enables or disables Platform Trust Technology (PTT) visibility to the operating
system.
Default: ON.
PPI Bypass for Clear Commands Enables or disables the operating system to skip BIOS Physical Presence Interface
(PPI) user prompts when issuing the Clear command.
Default: OFF.
Clear Enables or disables the computer to clear the PTT owner information, and returns the
PTT to the default state.
Default: OFF.
Intel SGX Enables or disables the Intel Software Guard Extensions (SGX) to provide a secured
environment for running code/storing sensitive information.
Default: Software Control
SMM Security Mitigation Enables or disables additional UEFI SMM Security Mitigation protections.
Default: OFF.
NOTE: This feature may cause compatibility issues or loss of
functionality with some legacy tools and applications.
Enable Strong Passwords Enables or disables strong passwords.
Default: OFF.
System setup 57
Security
Password Configuration Control the minimum and maximum number of characters that are allowed for Admin
and System passwords.
Admin Password Sets, Changes, or deletes the administrator (admin) password (sometimes called the
"setup" password).
System Password Sets, Changes, or deletes the system password.
Enable Master Password Lockout Enables or disables the master password support.
Default: OFF.
Table 8. System setup options—Secure Boot menu
Secure Boot
Enable Secure Boot Enables or disables the computer to boos using only validated boot software.
Default: OFF.
NOTE: For Secure Boot to be enabled, the computer needs to be in UEFI
boot mode and the Enable Legacy Option ROMs option needs to be
turned off.
Secure Boot Mode Selects the Secure Boot operation mode.
Default: Deployed Mode.
NOTE: Deployed Mode should be selected for normal operation of Secure
Boot.
Table 9. System setup options—Expert Key Management menu
Expert Key Management
Enable Custom Mode Enables or disables the keys in the PK, KEK, db, and dbx security key databases to be
modified.
Default: OFF.
Custom Mode Key Management Selects the custom values for expert key management.
Default: PK.
Table 10. System setup options—Performance menu
Performance
Intel Hyper-Threading Technology Enables or disables the Intel Hyper-Threading Technology to use processor resources
more efficiently.
Default: ON.
Intel SpeedStep Enables or disables the Intel SpeedStep Technology to dynamically adjust processor
voltage and core frequency, decreasing average power consumption and heat
production.
Default: ON.
Intel TurboBoost Technology Enabled or disabled the Intel TurboBoost mode of the processor. If enabled, the Intel
TurboBoost driver increases the performance of the CPU or graphics processor.
Default: ON.
Multi-Core Support Changes the number of CPU cores available to the operating system. The default
value is set to the maximum number of cores.
Default: All Cores.
Enable C-State Control Enables or disables the CPU's ability to enter and exit low-power states.
Default: ON.
58 System setup
Table 11. System setup options—Power Management menu
Power Management
Wake on AC Enables the computer to turn on and go to boot when AC power is supplied to the
computer.
Default: OFF.
Auto on Time Enables the computer to automatically power on for defined days and times.
Default: Disabled. The system will not automatically power up.
Battery Charge Configuration Enables the computer to run on battery during power usage hours. Use the below
options to prevent AC power usage between certain times of each day.
Default: Adaptive. Battery settings are adaptively optimized based on your typical
battery usage pattern.
Enable Advanced Battery Charge
Configuration
Enables Advanced Battery Charge Configuration from the beginning of the day to a
specified work period. Advanced Battery Charged maximizes battery health while still
supporting heavy use during the work day.
Default: OFF.
Block Sleep Blocks the computer from entering Sleep (S3) mode in the operating system.
Default: OFF.
NOTE: If enabled, the computer will not go to sleep, Intel Rapid Start will
be disabled automatically, and the operating system power option will be
blank if it was set to Sleep.
Enable USB Wake Support Enables the USB devices to wake the computer from Standby mode.
Default: OFF.
Enable Intel Speed Shift Technology Enables or disables Intel Speed Shift Technology support which enables the operating
system to select the appropriate processor performance automatically.
Default: ON.
Lid Switch Enables the computer to power up from the off state whenever the lid is opened.
Default: ON.
Table 12. System setup options—Wireless menu
Wireless
Wireless Switch Determines which wireless devices can be controlled by the Wireless Switch. For
Windows 8 systems, this is controlled by an operating system drive directly. As a
result, the setting does not affect the Wireless Switch behavior.
NOTE: When both WLAN and WiGig are present, enable/disable controls
are tied together. Thus, they cannot be enabled or disabled
independently.
WLAN Default: ON.
Bluetooth Default: ON.
Wireless Device Enable Enable or disable internal WLAN/Bluetooth devices.
WLAN Default: ON.
Bluetooth Default: ON.
System setup 59
Table 13. System setup options—POST Behavior menu
POST Behavior
Numlock Enable Enables or disables Numlock when the computer boots.
Default: ON.
Enable Adapter Warnings Enables the computer to display adapter warning messages during boot.
Default: ON.
Extend BIOS POST Time Configures the BIOS POST (Power-On Self-Test) load time.
Default: 0 seconds.
Fastboot Configures the speed of the UEFI boot process.
Default: Thorough. Performs complete hardware and configuration initialization during
boot.
Fn Lock Options Enables or disables the Fn lock mode.
Default: ON.
Lock Mode Default: Lock Mode Secondary. Lock Mode Secondary = If this option is selected, the
F1-F12 keys scan the code for their secondary functions.
Pull Screen Logo Enabled or disabled the computer to display full screen logo if the image match
screen resolution.
Default: OFF.
Warnings and Errors Selects an action on encountering a warning or error during boot.
Default: Prompt on Warnings and Errors. Stop, prompt and wait for user input when
warnings or errors are detected.
NOTE: Errors deemed critical to the operation of the computer hardware
will always halt the computer.
Table 14. System setup options—Virtualization menu
Virtualization
Intel Virtualization Technology Enables the computer to run a virtual machine monitor (VMM).
Default: ON.
VT for Direct I/O Enables the computer to perform Virtualization Technology for Direct I/O (VT-d).
VT-d is an Intel method that provides virtualization for memory map I/O.
Default: ON.
Table 15. System setup options—Maintenance menu
Maintenance
Asset Tag Creates a system Asset Tag that can be used by an IT administrator to uniquely
identify a particular system. Once set in BIOS, the Asset Tag cannot be changed.
Service Tag Displays the Service Tag of the computer.
BIOS Recovery from Hard Drive Enables the computer to recover from a bad BIOS image, as long as the Boot Block
portion is intact and functioning.
Default: ON.
NOTE: BIOS recovery is designed to fix the main BIOS block and cannot
work if the Boot Block is damaged. In addition, this feature cannot work
in the event of EC corruption, ME corruption, or a hardware issue. The
recovery image must exist on an unencrypted partition on the drive.
60 System setup
Maintenance
BIOS Auto-Recovery Enables the computer to automatically recover the BIOS without user actions. This
feature requires BIOS Recovery from Hard Drive to be set to Enabled.
Default: OFF.
Start Data Wipe CAUTION: This Secure Wipe Operation will delete information in a way
that it cannot be reconstructed.
If enabled, the BIOS will queue up a data wipe cycle for storage devices that are
connected to the motherboard on the next reboot.
Default: OFF.
Allow BIOS Downgrade Controls flashing of the system firmware to previous revisions.
Default: ON.
Table 16. System setup options—System Logs menu
System Logs
Power Event Log Displays Power events.
Default: Keep.
BIOS Event Log Displays BIOS events.
Default: Keep.
Thermal Event Log Displays Thermal events.
Default: Keep.
Table 17. System setup options—SupportAssist menu
SupportAssist
Dell Auto operating system Recovery
Threshold
Controls the automatic boot flow for SupportAssist System Resolution Console and
for Dell operating system Recovery tool.
Default: 2.
SupportAssist operating system Recovery Enables or disables the boot flow for SupportAssist operating system Recovery tool
in the even of certain system errors.
Default: ON.
System and admin password
Table 18. System and admin password
Password type Description
System password Password that you must enter to log on to your computer.
Admin password Password that you must enter to enable some security features in
your computer.
You can create a system password and a admin password to secure your computer.
CAUTION: The password features provide a basic level of security for the data on your computer.
CAUTION: Anyone can access the data stored on your computer if it is not locked and left unattended.
NOTE: System and admin password feature is disabled.
System setup 61
Assigning a system setup password
To enter the system setup, press F2 immediately after a power-on or re-boot.
1. In the System BIOS or System Setup screen, select Passwords on the left pane.
The Passwords screen is displayed.
2. In the System Password or the Admin Password section, create a password in the Enter the new password field, and then press
Enter.
Use the following guidelines to assign the system password:
• A password can have up to 32 characters.
• The password can contain the numbers 0 through 9.
• Only lower case letters are valid, upper case letters are not allowed.
• Only the following special characters are allowed: space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).
3. Re-enter the password and press Enter to confirm.
4. Press Esc and a message prompts you to save the changes.
5. Press Y to save the changes.
The computer reboots.
Deleting or changing an existing system/admin password
To enter the System Setup, press F2 immediately after a power-on or reboot.
1. In the System BIOS or System Setup screen, select Passwords on the left pane.
The Passwords screen is displayed.
2. Select System Password, alter or delete the existing system password and press Enter.
3. Select Admin Password, alter or delete the existing setup password and press Enter.
NOTE: If you change the System and/or Admin password, re-enter the new password when prompted. If you delete
the System and/or Setup password, confirm the deletion when prompted.
4. Press Esc and a message prompts you to save the changes.
5. Press Y to save the changes and exit from System Setup.
The computer reboot.
Clearing CMOS settings
CAUTION: Clearing CMOS settings will reset the BIOS settings on your computer.
1. Remove the base cover.
2. Disconnect the battery cable from the system board.
3. Remove the coin-cell battery.
4. Wait for one minute.
5. Replace the coin-cell battery.
6. Connect the battery cable to the system board.
7. Replace the base cover.
Clearing BIOS (System Setup) and System passwords
To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell.
NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying
Windows or your application.
62 System setup
Troubleshooting
Enhanced Pre-Boot System Assessment (ePSA)
diagnostics
The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the
BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device
groups allowing you to:
• Run tests automatically or in an interactive mode
• Repeat tests
• Display or save test results
• Run thorough tests to introduce additional test options to provide extra information about the failed device(s)
• View status messages that inform you if tests are completed successfully
• View error messages that inform you of problems encountered during testing
NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer
terminal when the diagnostic tests are performed.
Running the ePSA diagnostics
1. Turn on your computer.
2. As the computer boots, press the F12 key as the Dell logo appears.
3. On the boot menu screen, select the Diagnostics option.
4. Click the arrow at the bottom left corner.
Diagnostics front page is displayed.
5. Click the arrow in the lower-right corner to go to the page listing.
The items detected are listed.
6. To run a diagnostic test on a specific device, press Esc and click Yes to stop the diagnostic test.
7. Select the device from the left pane and click Run Tests.
8. If there are any issues, error codes are displayed.
Note the error code and validation number and contact Dell.
System diagnostic lights
Battery-status light
Indicates the power and battery-charge status.
Solid white — Power adapter is connected and the battery has more than 5 percent charge.
Amber — Computer is running on battery and the battery has less than 5 percent charge.
Off
• Power adapter is connected and the battery is fully charged.
• Computer is running on battery and the battery has more than 5 percent charge.
• Computer is in sleep state, hibernation, or turned off.
The power and battery-status light blinks amber along with beep codes indicating failures.
For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by
a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
The following table shows different power and battery-status light patterns and associated problems.
5
Troubleshooting 63
Table 19. LED codes
Diagnostic light codes Problem description
2,1 Processor failure
2,2 System board: BIOS or ROM (Read-Only Memory) failure
2,3 No memory or RAM (Random-Access Memory) detected
2,4 Memory or RAM (Random-Access Memory) failure
2,5 Invalid memory installed
2,6 System-board or chipset error
2,7 Display failure
3,1 Coin-cell battery failure
3,2 PCI, video card/chip failure
3,3 Recovery image not found
3,4 Recovery image found but invalid
3,5 Power-rail failure
3,6 System BIOS Flash incomplete
3,7 Management Engine (ME) error
Camera status light: Indicates whether the camera is in use.
• Solid white — Camera is in use.
• Off — Camera is not in use.
Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.
• Solid white — Caps Lock enabled.
• Off — Caps Lock disabled.
Recovering the operating system
When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell SupportAssist OS
Recovery.
Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows 10 operating system. It
consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating system. It enables you
to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state.
You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary
operating system due to software or hardware failures.
For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at www.dell.com/
support.
Flashing BIOS (USB key)
1. Follow the procedure from step 1 to step 7 in "Flashing the BIOS" to download the latest BIOS setup program file.
2. Create a bootable USB drive. For more information see the knowledge base article SLN143196 at www.dell.com/support.
3. Copy the BIOS setup program file to the bootable USB drive.
4. Connect the bootable USB drive to the computer that needs the BIOS update.
5. Restart the computer and press F12 when the Dell logo is displayed on the screen.
6. Boot to the USB drive from the One Time Boot Menu.
7. Type the BIOS setup program filename and press Enter.
8. The BIOS Update Utility appears. Follow the instructions on the screen to complete the BIOS update.
64 Troubleshooting
Flashing the BIOS
You may need to flash (update) the BIOS when an update is available or when you replace the system board.
Follow these steps to flash the BIOS:
1. Turn on your computer.
2. Go to www.dell.com/support.
3. Click Product support, enter the Service Tag of your computer, and then click Submit.
NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model.
4. Click Drivers & downloads > Find it myself.
5. Select the operating system installed on your computer.
6. Scroll down the page and expand BIOS.
7. Click Download to download the latest version of the BIOS for your computer.
8. After the download is complete, navigate to the folder where you saved the BIOS update file.
9. Double-click the BIOS update file icon and follow the instructions on the screen.
Enabling Intel Optane memory
1. On the taskbar, click the search box, and then type Intel Rapid Storage Technology.
2. Click Intel Rapid Storage Technology.
The Intel Rapid Storage Technology window is displayed.
3. On the Status tab, click Enable to enable the Intel Optane memory.
4. On the warning screen, select a compatible fast drive, and then click Yes to continue enabling Intel Optane memory.
5. Click Intel Optane memory > Reboot to complete enabling your Intel Optane memory.
NOTE: Applications may take up to three subsequent launches after enablement to see the full performance
benefits.
Disabling Intel Optane memory
CAUTION: After disabling Intel Optane memory, do not uninstall the driver for Intel Rapid Storage Technology as it will
result in a blue screen error. The Intel Rapid Storage Technology user interface can be removed without uninstalling the
driver.
NOTE: Disabling Intel Optane memory is required before removing the SATA storage device accelerated by the Intel
Optane memory module from the computer.
1. On the taskbar, click the search box, and then type Intel Rapid Storage Technology.
2. Click Intel Rapid Storage Technology.
The Intel Rapid Storage Technology window is displayed.
3. On the Intel Optane memory tab, click Disable to disable the Intel Optane memory.
NOTE: For computers in which Intel Optane memory acts as a primary storage, do not disable the Intel Optane
memory. The Disable option will be grayed out.
4. Click Yes if you accept the warning.
The disabling progress is displayed.
5. Click Reboot to complete disabling your Intel Optane memory and restart your computer.
WiFi power cycle
If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be performed. The
following procedure provides the instructions on how to conduct a WiFi power cycle:
NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.
1. Turn off your computer.
Troubleshooting 65
2. Turn off the modem.
3. Turn off the wireless router.
4. Wait for 30 seconds.
5. Turn on the wireless router.
6. Turn on the modem.
7. Turn on your computer.
Flea power release
Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been
removed. The following procedure provides the instructions on how to conduct flea power release:
1. Turn off your computer.
2. Disconnect the power adapter from your computer.
3. Press and hold the power button for 15 seconds to drain the flea power.
4. Connect the power adapter to your computer.
5. Turn on your computer.
66 Troubleshooting