Table of Contents
- XPS 8940 Service Manual
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of XPS 8940
- Left-side cover
- Optical drive (optional)
- Power button
- Front cover
- 2.5-inch hard drive
- 3.5-inch hard drive
- Chassis fan
- Memory modules
- Wireless card
- Solid-state drive/Intel Optane
- Graphics card
- Coin-cell battery
- Power-supply unit
- Processor fan and heat-sink assembly
- Processor
- Voltage regulator heat sink (optional)
- System board
- Drivers and downloads
- System setup
- Troubleshooting
- Locate the Service Tag or Express Service Code of your Dell computer
- SupportAssist diagnostics
- System-diagnostic lights
- Diagnostic error messages
- Enabling Intel Optane memory
- Disabling Intel Optane memory
- Recovering the operating system
- Flashing BIOS (USB key)
- Flashing the BIOS
- Flashing the BIOS from the F12 One-Time boot menu
- WiFi power cycle
- Flea power release
- Getting help and contacting Dell
DELL 8940 User Manual
Displayed below is the user manual for 8940 by DELL which is a product in the PCs/Workstations category. This manual has pages.
Related Manuals
XPS 8940
Service Manual
Regulatory Model: D28M
Regulatory Type: D28M003
February 2021
Rev. A04
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.
© 2020-2021 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.
Chapter 1: Working inside your computer...................................................................................... 6
Before working inside your computer.............................................................................................................................6
Safety instructions.............................................................................................................................................................. 6
Electrostatic discharge—ESD protection......................................................................................................................7
ESD field service kit ........................................................................................................................................................... 7
Transporting sensitive components................................................................................................................................ 8
After working inside your computer................................................................................................................................9
Chapter 2: Removing and installing components.......................................................................... 10
Recommended tools..........................................................................................................................................................10
Screw list............................................................................................................................................................................. 10
Major components of XPS 8940.....................................................................................................................................11
Left-side cover................................................................................................................................................................... 13
Removing the left-side cover....................................................................................................................................13
Installing the left-side cover...................................................................................................................................... 14
Optical drive (optional).....................................................................................................................................................15
Removing the optical drive........................................................................................................................................ 15
Installing the optical drive...........................................................................................................................................17
Power button...................................................................................................................................................................... 19
Removing the power button......................................................................................................................................19
Installing the power button........................................................................................................................................19
Front cover......................................................................................................................................................................... 20
Removing the front cover......................................................................................................................................... 20
Installing the front cover............................................................................................................................................ 21
2.5-inch hard drive............................................................................................................................................................22
Removing the 2.5-inch hard drive...........................................................................................................................22
Installing the 2.5-inch hard drive............................................................................................................................. 23
3.5-inch hard drive............................................................................................................................................................25
Removing the 3.5-inch hard drive...........................................................................................................................25
Installing the 3.5-inch hard drive............................................................................................................................. 26
Chassis fan.......................................................................................................................................................................... 27
Removing the chassis fan..........................................................................................................................................27
Installing the chassis fan............................................................................................................................................28
Memory modules............................................................................................................................................................... 29
Removing the memory modules...............................................................................................................................29
Installing the memory modules.................................................................................................................................30
Wireless card.......................................................................................................................................................................31
Removing the wireless card.......................................................................................................................................31
Installing the wireless card........................................................................................................................................ 32
Solid-state drive/Intel Optane....................................................................................................................................... 34
Removing the solid-state drive/Intel Optane....................................................................................................... 34
Installing the solid-state drive/Intel Optane......................................................................................................... 34
Graphics card..................................................................................................................................................................... 35
Removing the graphics card..................................................................................................................................... 35
Contents
Contents 3
Installing the graphics card....................................................................................................................................... 37
Coin-cell battery................................................................................................................................................................ 39
Removing the coin-cell battery................................................................................................................................39
Installing the coin-cell battery..................................................................................................................................40
Power-supply unit.............................................................................................................................................................. 41
Removing the power-supply unit..............................................................................................................................41
Installing the power-supply unit...............................................................................................................................44
Processor fan and heat-sink assembly........................................................................................................................ 45
Removing the processor fan and heat-sink assembly........................................................................................ 45
Installing the processor fan and heat-sink assembly.......................................................................................... 46
Processor.............................................................................................................................................................................47
Removing the processor............................................................................................................................................ 47
Installing the processor.............................................................................................................................................. 48
Voltage regulator heat sink (optional)......................................................................................................................... 49
Removing the voltage regulator heat sink.............................................................................................................49
Installing the voltage regulator heat sink...............................................................................................................50
System board...................................................................................................................................................................... 51
Removing the system board......................................................................................................................................51
Installing the system board....................................................................................................................................... 55
Chapter 3: Drivers and downloads............................................................................................... 59
Chapter 4: System setup............................................................................................................. 60
System setup..................................................................................................................................................................... 60
BIOS overview................................................................................................................................................................... 60
Entering BIOS setup program........................................................................................................................................ 60
Navigation keys................................................................................................................................................................. 60
Boot Sequence................................................................................................................................................................... 61
System setup options....................................................................................................................................................... 61
System and setup password...........................................................................................................................................66
Assigning a system setup password....................................................................................................................... 66
Deleting or changing an existing system setup password................................................................................. 67
Real Time Clock (RTC) reset....................................................................................................................................67
Clearing BIOS (System Setup) and System passwords.....................................................................................68
Chapter 5: Troubleshooting.........................................................................................................69
Locate the Service Tag or Express Service Code of your Dell computer ............................................. 69
SupportAssist diagnostics............................................................................................................................................... 69
System-diagnostic lights................................................................................................................................................. 69
Diagnostic error messages.............................................................................................................................................. 70
Enabling Intel Optane memory....................................................................................................................................... 73
Disabling Intel Optane memory...................................................................................................................................... 73
Recovering the operating system..................................................................................................................................74
Flashing BIOS (USB key).................................................................................................................................................74
Flashing the BIOS.............................................................................................................................................................. 74
Flashing the BIOS from the F12 One-Time boot menu............................................................................................ 75
WiFi power cycle............................................................................................................................................................... 75
Flea power release............................................................................................................................................................ 76
4Contents
Working inside your computer
Before working inside your computer
About this task
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Steps
1. Save and close all open files and exit all open applications.
2. Shut down your computer. Click Start > Power > Shut down.
NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down
instructions.
3. Disconnect your computer and all attached devices from their electrical outlets.
4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the
cable from the network device.
5. Remove any media card and optical disc from your computer, if applicable.
Safety instructions
Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless
otherwise noted, each procedure included in this document assumes that you have read the safety information that shipped
with your computer.
WARNING: Before working inside your computer, read the safety information that is shipped with your
computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
WARNING: Disconnect your computer from all power sources before opening the computer cover or panels.
After you finish working inside the computer, replace all covers, panels, and screws before connecting your
computer to an electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is flat, dry, and clean.
CAUTION: To avoid damaging the components and cards, handle them by their edges, and avoid touching the
pins and the contacts.
CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical
assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the
safety instructions that is shipped with the product or at www.dell.com/regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal
surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal
surface to dissipate static electricity which could harm internal components.
1
6 Working inside your computer
CAUTION: When you disconnect a cable, pull it by its connector or its pull tab, not the cable itself. Some cables
have connectors with locking tabs or thumbscrews that you must disengage before disconnecting the cable.
When disconnecting cables, keep them evenly aligned to avoid bending the connector pins. When connecting
cables, ensure that the ports and the connectors are correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card reader.
NOTE: The color of your computer and certain components may appear differently than shown in this document.
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
Working inside your computer 7
use wireless wrist straps. Always be aware that the internal wires of a wrist strap are prone to damage from normal wear
and tear, and must be checked regularly with a wrist strap tester in order to avoid accidental ESD hardware damage. It is
recommended to test the wrist strap and bonding wire at least once per week.
●ESD Wrist Strap Tester – The wires inside of an ESD strap are prone to damage over time. When using an unmonitored
kit, it is a best practice to regularly test the strap prior to each service call, and at a minimum, test once per week. A
wrist strap tester is the best method for doing this test. If you do not have your own wrist strap tester, check with your
regional office to find out if they have one. To perform the test, plug the wrist-strap's bonding-wire into the tester while it is
strapped to your wrist and push the button to test. A green LED is lit if the test is successful; a red LED is lit and an alarm
sounds if the test fails.
●Insulator Elements – It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts
that are insulators and often highly charged.
●Working Environment – Before deploying the ESD Field Service kit, assess the situation at the customer location. For
example, deploying the kit for a server environment is different than for a desktop or portable environment. Servers are
typically installed in a rack within a data center; desktops or portables are typically placed on office desks or cubicles. Always
look for a large open flat work area that is free of clutter and large enough to deploy the ESD kit with additional space to
accommodate the type of system that is being repaired. The workspace should also be free of insulators that can cause an
ESD event. On the work area, insulators such as Styrofoam and other plastics should always be moved at least 12 inches or
30 centimeters away from sensitive parts before physically handling any hardware components
●ESD Packaging – All ESD-sensitive devices must be shipped and received in static-safe packaging. Metal, static-shielded
bags are preferred. However, you should always return the damaged part using the same ESD bag and packaging that the
new part arrived in. The ESD bag should be folded over and taped shut and all the same foam packing material should be
used in the original box that the new part arrived in. ESD-sensitive devices should be removed from packaging only at an
ESD-protected work surface, and parts should never be placed on top of the ESD bag because only the inside of the bag is
shielded. Always place parts in your hand, on the ESD mat, in the system, or inside an anti-static bag.
●Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts
to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport.
ESD protection summary
It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static
mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all
insulator parts while performing service and that they use anti-static bags for transporting sensitive components.
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.
8Working inside your computer
After working inside your computer
About this task
CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.
Steps
1. Replace all screws and ensure that no stray screws remain inside your computer.
2. Connect any external devices, peripherals, or cables you removed before working on your computer.
3. Replace any media cards, discs, or any other parts that you removed before working on your computer.
4. Connect your computer and all attached devices to their electrical outlets.
5. Turn on your computer.
Working inside your computer 9
Removing and installing components
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Recommended tools
The procedures in this document may require the following tools:
●Phillips screwdrivers #1/#2
●Optical drive opening tool
●Plastic scribe
Screw list
NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and
then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is
restored when the component is replaced.
NOTE: Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surfaces when
replacing a component.
NOTE: Screw color may vary with the configuration ordered.
Table 1. Screw list
Component Secured to Screw type Quantity Screw image
Left-side cover Chassis Captive screw
#6-33
2
Optical-drive bracket Optical drive M2x3 1
3.5-inch hard-drive
assembly
Chassis #6-32 1
3.5-inch hard drive Hard-drive cage #6-32 4
Wireless-card bracket System board M2x3 1
Solid-state drive/Intel
Optane memory module
System board M2x3 1
Power-supply unit Chassis #6-32 3
2
10 Removing and installing components
Table 1. Screw list
Component Secured to Screw type Quantity Screw image
Processor fan and heat-
sink assembly
Chassis Captive screw
M3
4
Voltage regulator heat
sink
Chassis Captive screw
M2.5
2
Front I/O bracket Chassis #6-32 1
System board Chassis #6-32 8
System board Chassis #6-32x3.8 1
Major components of XPS 8940
The following image shows the major components of XPS 8940.
Removing and installing components 11
12 Removing and installing components
1. processor fan and heat-sink assembly
2. voltage regulator heat sink (optional)
3. hard drive
4. hard-drive cage
5. wireless card
6. solid-state drive
7. system board
8. memory modules
9. hard-drive cage
10. optical drive (optional)
11. power-button module
12. front I/O bracket
13. front cover
14. power-supply unit
15. chassis
16. graphics card
17. processor
18. chassis fan
19. graphics-card supporting bracket
20. hard-drive bracket
Left-side cover
Removing the left-side cover
Prerequisites
1. Follow the procedure in Before working inside your computer.
About this task
The following images indicate the location of the left-side cover and provide a visual representation of the removal procedure.
Removing and installing components 13
Steps
1. Loosen the two captive screws that secure the left-side cover to the chassis.
2. Using the tab on the left-side cover, slide and lift the left-side cover off the chassis.
Installing the left-side cover
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the left-side cover and provide a visual representation of the installation procedure.
14 Removing and installing components
Steps
1. Align the tabs on the left-side cover with the slots on the chassis, and slide it towards the front of the computer.
2. Tighten the two captive screws that secure the left-side cover to the chassis.
Next steps
1. Follow the procedure in After working inside your computer.
Optical drive (optional)
Removing the optical drive
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
Removing and installing components 15
About this task
The following images indicate the location of the optical drive and provide a visual representation of the removal procedure.
16 Removing and installing components
Steps
1. Disconnect the power and data cables from the optical drive.
2. Pull the release tab on the optical-drive cage towards the bottom of the computer.
3. Pull to slide out the optical drive through the front of the computer.
4. Remove the screw (M2x3) that secures the optical-drive bracket to the optical drive.
5. Eject the optical drive by inserting an optical drive opening tool in the optical-drive eject hole.
6. Using a plastic scribe, gently push the optical-drive bezel away to remove the tabs from the slots on the optical drive.
Installing the optical drive
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the optical drive and provide a visual representation of the installation procedure.
Removing and installing components 17
Steps
1. Align the tabs on the optical-drive bezel with slots on the optical drive and snap it in place.
2. Align the screw hole on the optical-drive bracket with the screw hole on the optical drive.
3. Replace the screw (M2x3) that secures the optical-drive bracket to the optical drive.
4. Slide the optical drive into the optical-drive cage through the front of the computer until it snaps into place.
5. Connect the power and data cables to the optical drive.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
18 Removing and installing components
Power button
Removing the power button
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
3. Remove the front cover.
About this task
The following images indicate the location of the power button and provide a visual representation of the removal procedure.
Steps
1. Lay the computer on the right side.
2. Disconnect the power-button cable from the system board.
NOTE: The above image is provided for illustrative purposes only. You do not need to remove the front I/O cover to
access the power-button cable.
3. Press the release tabs on the power-button module and push the power-button module out of the chassis.
4. Lift the power-button module, along with its cable, from the chassis.
Installing the power button
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the power button and provide a visual representation of the installation procedure.
Removing and installing components 19
Steps
1. Slide the power-button module into the chassis until it snaps into place.
2. Connect the power-button cable to the system board.
NOTE: The above image is provided for illustrative purposes only. You do not need to remove the front I/O cover to
access the power-button cable.
Next steps
1. Install the front cover.
2. Install the left-side cover.
3. Follow the procedure in After working inside your computer.
Front cover
Removing the front cover
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
About this task
The following images indicate the location of the front cover and provide a visual representation of the removal procedure.
20 Removing and installing components
Steps
1. Place the computer in an upright position.
2. Gently pry and release the front-cover tabs from the top-left, working down sequentially to the bottom-left tab.
3. Swing the front cover outwards, away from the chassis, and remove the cover.
Installing the front cover
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the front cover and provide a visual representation of the installation procedure.
Removing and installing components 21
Steps
1. Place the computer in an upright position.
2. Insert the right-side front-cover tabs into the corresponding slots on the chassis.
3. Push the left-side of the front cover towards the chassis, snapping the slots into position.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
2.5-inch hard drive
Removing the 2.5-inch hard drive
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
About this task
NOTE: The computer ships with two empty 2.5-inch hard-drive cages. A 2.5-inch hard drive (sold separately) is required to
perform below procedures.
The following images indicate the location of the 2.5-inch hard-drive assembly and provide a visual representation of the
removal procedure.
22 Removing and installing components
Steps
1. Lay the computer on the right side.
2. Disconnect the data and power cables from the hard drive.
3. Press the release tabs on the hard-drive carrier and slide the hard-drive carrier out of the hard-drive cage.
4. Pry the hard-drive carrier to release the tabs on the carrier from the slots on the hard drive.
5. Lift the hard drive off the hard-drive carrier.
NOTE: Note the orientation of the hard drive so that you can replace it correctly.
Installing the 2.5-inch hard drive
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
NOTE: The computer ships with two empty 2.5-inch hard-drive cages. A 2.5-inch hard drive (sold separately) is required to
perform below procedures.
Removing and installing components 23
The following images indicate the location of the 2.5-inch hard-drive assembly and provide a visual representation of the
installation procedure.
Steps
1. Place the hard drive into the hard-drive carrier and align the tabs on the carrier with the slots on the hard drive.
2. Snap the hard-drive carrier into the hard drive.
3. Slide the hard-drive assembly into the hard-drive cage until it snaps into place.
4. Connect the data cable and power cable to the hard drive.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
24 Removing and installing components
3.5-inch hard drive
Removing the 3.5-inch hard drive
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
About this task
The following images indicate the location of the 3.5-inch hard-drive assembly and provide a visual representation of the
removal procedure.
Steps
1. Lay the computer on the right side.
2. Disconnect the data and power cables from the hard drive.
3. Remove the cables from the routing guides on the hard-drive assembly.
4. Remove the screw (#6-32) that secures the 3.5-inch hard-drive assembly to the chassis.
Removing and installing components 25
5. Lift the hard-drive assembly away from the chassis.
6. Remove the four screws (#6-32) that secure the hard drive to the hard-drive cage.
7. Slide the hard drive from the hard-drive cage.
Installing the 3.5-inch hard drive
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the 3.5-inch hard-drive assembly and provide a visual representation of the
installation procedure.
Steps
1. Slide the hard drive into the hard-drive cage.
2. Replace the four screws (#6-32) that secure the hard drive to the hard-drive cage.
3. Align the hard-drive assembly with the tabs on the chassis.
4. Using the alignment post, align the screw hole on the hard-drive assembly with the screw hole on the chassis.
26 Removing and installing components
5. Route the power cable and data cable through the routing guides on the hard-drive assembly and connect the cables to the
hard drive.
6. Replace the screw (#6-32) that secures the hard-drive assembly to the chassis.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
Chassis fan
Removing the chassis fan
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
About this task
The following images indicate the location of the chassis fan and provide a visual representation of the removal procedure.
Steps
1. Lay the computer on the right side.
2. Disconnect the fan cable from the system board.
3. Gently pull the fan to release it from the rubber grommets.
4. Remove the fan off the chassis.
Removing and installing components 27
Installing the chassis fan
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the chassis fan and provide a visual representation of the installation procedure.
Steps
1. Align the slots on the fan with the rubber grommets on the chassis.
NOTE: The replacement fan may have tabs that are inserted into the grommets slots. This is to prevent the incorrect
installation of the fan.
28 Removing and installing components
2. Route the rubber grommets through the slots on fan and push the rubber grommets until the fan snaps into position.
3. Connect the fan cable to the system board.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
Memory modules
Removing the memory modules
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
About this task
The following images indicate the location of the memory modules and provide a visual representation of the removal procedure.
Removing and installing components 29
Steps
1. Lay the chassis on the right side.
2. Use your fingertips to carefully spread apart the securing-clips on each end of the memory-module slot.
3. Grasp the memory module near the securing clip, and then gently ease the memory module out of the memory-module slot.
CAUTION: To prevent damage to the memory module, hold the memory module by the edges. Do not touch
the components on the memory module.
NOTE: Repeat step 2 to step 3 to remove any other memory modules installed in your computer.
NOTE: Note the slot and the orientation of the memory module in order to replace it in the correct slot.
NOTE: If the memory module is difficult to remove, gently ease the memory module back and forth to remove it from
the slot.
Installing the memory modules
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the memory modules and provide a visual representation of the installation
procedure.
30 Removing and installing components
Steps
1. Align the notch on the memory module with the tab on the memory-module slot.
2. Insert the memory module into the memory-module connector until the memory module snaps into position and the securing
clip locks in place.
CAUTION: To prevent damage to the memory module, hold the memory module by the edges. Do not touch
the components on the memory module.
NOTE: The securing clips return to the locked position. If you do not hear the click, remove the memory module and
reinstall it.
NOTE: If the memory module is difficult to remove, gently ease the memory module back and forth to remove it from
the slot.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
Wireless card
Removing the wireless card
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
3. Remove the 3.5-inch hard drive.
About this task
The following images indicate the location of the wireless card and provide a visual representation of the removal procedure.
Removing and installing components 31
Steps
1. Lay the computer on the right side.
2. Remove the screw (M2x3) that secures the wireless card to the system board.
3. Slide and lift the wireless-card bracket off the wireless card.
4. Disconnect the antenna cables from the wireless card.
5. Slide and remove the wireless card at an angle from the wireless-card slot.
Installing the wireless card
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
NOTE: To avoid damage to the wireless card, do not place any cables under it.
About this task
The following images indicate the location of the wireless card and provide a visual representation of the installation procedure.
32 Removing and installing components
Steps
1. Connect the antenna cables to the wireless card.
The following table provides the antenna-cable color scheme for the wireless card that is supported by your computer.
Table 2. Antenna-cable color scheme
Connectors on the wireless card Antenna-cable color
Main (white triangle) White
Auxiliary (black triangle) Black
2. Slide and place the wireless-card bracket on the wireless card.
3. Align the notch on the wireless card with the tab on the wireless-card slot.
4. Slide the wireless card at an angle into the wireless-card slot.
5. Replace the screw (M2x3) that secures the wireless card to the system board.
Next steps
1. Install the 3.5-inch hard drive.
2. Install the left-side cover.
3. Follow the procedure in After working inside your computer.
Removing and installing components 33
Solid-state drive/Intel Optane
Removing the solid-state drive/Intel Optane
Prerequisites
NOTE: You must disable the Intel Optane memory before removing Intel Optane from your computer. For more information
about disabling the Intel Optane memory, see Disabling Intel Optane.
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
3. Remove the graphics card.
About this task
The following images indicate the location of the solid-state drive/Intel Optane and provide a visual representation of the
removal procedure.
Steps
1. Remove the screw (M2x2.5) that secures the solid-state drive/Intel Optane to the system board.
2. Slide and lift the solid-state drive/Intel Optane from the M.2 card slot on the system board.
Installing the solid-state drive/Intel Optane
Prerequisites
CAUTION: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the solid-state drive/Intel Optane and provide a visual representation of the
installation procedure.
34 Removing and installing components
Steps
1. Align the notch on the solid-state drive/Intel Optane with the tab on the M.2 card slot.
2. Slide the solid-state drive/Intel Optane into the M.2 card slot on the system board.
3. Replace the screw (M2x3) that secures the solid-state drive/Intel Optane to the system board.
Next steps
1. Install the graphics card.
2. Install the left-side cover.
3. Follow the procedure in After working inside your computer.
NOTE: Enable the Intel Optane memory after you replace the Intel Optane memory module. For more information about
enabling the Intel Optane memory, see Enabling Intel Optane.
Graphics card
Removing the graphics card
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
About this task
The following images indicate the location of the graphics card and provide a visual representation of the removal procedure.
Removing and installing components 35
36 Removing and installing components
Steps
1. Lay the computer on the right side.
2. Disconnect the power cables from the graphics card and remove them from the routing guides on the graphics -card support
bracket.
NOTE: This step is applicable only for computers that are shipped with a graphics-card support bracket.
3. Pull together the securing tabs on the graphics-card support bracket and rotate to remove it off the chassis.
4. Lift the pull tab to open the PCIE door.
5. Push and hold the securing tab on the graphics-card slot and lift the graphics card from the graphics-card slot.
NOTE: To remove the NVIDIA GeForce RTX 2080 graphics card, lift and rotate the graphics card.
Installing the graphics card
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
Removing and installing components 37
About this task
The following images indicate the location of the graphics card and provide a visual representation of the installation procedure.
38 Removing and installing components
Steps
1. Align the graphics card with the PCI-Express card connector on the system board.
NOTE: To install the NVIDIA GeForce RTX 2080 graphics card, rotate and install the graphics card.
2. Using the alignment post, connect the card in the connector and press down firmly. Ensure that the card is firmly seated.
3. Close the PCIE door.
4. Replace the graphics-card support bracket that connects the graphics card.
NOTE: This step is applicable only for computers that are shipped with a graphics-card support bracket.
5. Route the cables through the routing guide on the graphics-card support bracket and connect the power cables to the
graphics card.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
Coin-cell battery
Removing the coin-cell battery
Prerequisites
1. Follow the procedure in Before working inside your computer.
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.
2. Remove the left-side cover.
3. Remove the graphics card.
About this task
The following images indicate the location of the coin-cell battery and provide a visual representation of the removal procedure.
Removing and installing components 39
Steps
1. Lay the computer on the right side.
2. Using your finger, push the coin-cell battery-release lever on the coin-cell battery socket to release the coin-cell battery out
of the socket.
3. Remove the coin-cell battery.
Installing the coin-cell battery
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the coin-cell battery and provide a visual representation of the installation
procedure.
40 Removing and installing components
Insert the coin-cell battery into the socket with the positive side (+) label facing up and snap the battery in the socket.
Next steps
1. Install the graphics card.
2. Install the left-side cover.
3. Follow the procedure in After working inside your computer.
Power-supply unit
Removing the power-supply unit
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
3. Remove the graphics card.
NOTE: Note the routing of all cables as you remove them so that you can route them correctly while you are replacing the
power-supply unit.
About this task
The following images indicate the location of the power-supply unit and provide a visual representation of the removal
procedure.
Removing and installing components 41
42 Removing and installing components
Steps
1. Lay the computer on the right side.
2. Disconnect the power cables from the system board and remove them from the routing guides on the chassis.
Removing and installing components 43
3. Remove the three screws (#6-32) that secure the power-supply unit to the chassis.
4. Press the securing clip and slide the power-supply unit away from the back of the chassis.
5. Lift the power-supply unit off the chassis.
Installing the power-supply unit
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
NOTE: The cables and ports on the back of the power-supply unit are color-coded to indicate the different power wattage.
Ensure that you plug in the cable to the correct port. Failure to do so may result in damaging the power-supply unit and/or
computer components.
About this task
The following images indicate the location of the power-supply unit and provide a visual representation of the installation
procedure.
44 Removing and installing components
Steps
1. Slide the power-supply unit into the chassis until the securing tab snaps into position.
2. Replace the three screws (#6-32) that secure the power-supply unit to the chassis.
3. Route the power cable through the routing guides on the chassis and connect the power cables to their respective
connectors on the system board.
Next steps
1. Install the graphics card.
2. Install the left-side cover.
3. Follow the procedure in After working inside your computer.
Processor fan and heat-sink assembly
Removing the processor fan and heat-sink assembly
Prerequisites
1. Follow the procedure in Before working inside your computer.
NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you
touch it.
2. Remove the left-side cover.
About this task
The following images indicate the location of the processor fan and heat-sink assembly and provide a visual representation of
the removal procedure.
Removing and installing components 45
Steps
1. Disconnect the processor-fan cable from the system board.
2. In the reverse sequential order (4->3->2->1), loosen the captive screws that secure the processor fan and heat-sink
assembly to the system board.
3. Lift the processor fan and heat-sink assembly off the system board.
Installing the processor fan and heat-sink assembly
Prerequisites
CAUTION: If either the processor or the heat sink is replaced, use the thermal grease that is provided in the kit
to ensure that thermal conductivity is achieved.
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the processor fan and heat-sink assembly and provide a visual representation of
the installation procedure.
46 Removing and installing components
Steps
1. Align the numbering on the processor fan and heat-sink assembly with the numbering on the system board.
2. In the sequential order (1->2->3->4), tighten the captive screws that secure the processor fan and heat-sink assembly to
the system board.
3. Connect the processor-fan cable from the system board.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
Processor
Removing the processor
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
3. Remove the processor fan and heat-sink assembly.
NOTE: The processor might still be hot after the computer is shut down. Allow the processor to cool down before removing
it.
About this task
The following images indicate the location of the processor and provide a visual representation of the removal procedure.
Removing and installing components 47
Steps
1. Press the release lever down and then push it away from the processor to release it from the securing tab.
2. Extend the release lever completely and open the processor cover.
CAUTION: When removing the processor, do not touch any of the pins inside the socket or allow any objects
to fall on the pins in the socket.
3. Gently lift the processor from the processor socket.
Installing the processor
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the processor and provide a visual representation of the installation procedure.
48 Removing and installing components
Steps
1. Ensure that the release lever on the processor socket is fully extended in the open position.
NOTE: The pin-1 corner of the processor has a triangle that aligns with the triangle on the pin-1 corner on the processor
socket. When the processor is properly seated, all four corners are aligned at the same height. If one or more corners of
the processor are higher than the others, the processor is not seated properly.
2. Align the notches on the processor with the tabs on the processor socket and place the processor in the processor socket.
CAUTION: Ensure that the processor-cover notch is positioned underneath the alignment post.
3. When the processor is fully seated in the socket, pivot the release-lever down and place it under the tab on the processor
cover.
Next steps
1. Install the processor fan and heat-sink assembly.
2. Install the left-side cover.
3. Follow the procedure in After working inside your computer.
Voltage regulator heat sink (optional)
Removing the voltage regulator heat sink
Prerequisites
1. Follow the procedure in Before working inside your computer.
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.
NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you
touch it.
NOTE: The voltage regulator heat sink is shipped as a separate unit and it does not ship along with the system board. A
voltage regulator is required for computers that are shipped with the following processors:
●10th Generation Intel Core i5-10600K
●10th Generation Intel Core i5-10600KF
●10th Generation Intel Core i7-10700K
●10th Generation Intel Core i7-10700KF
●10th Generation Intel Core i9-10900K
●10th Generation Intel Core i9-10900KF
●11th Generation Intel Core i5-11600K
●11th Generation Intel Core i5-11600KF
●11th Generation Intel Core i7-11700K
●11th Generation Intel Core i7-11700KF
●11th Generation Intel Core i9-11900K
●11th Generation Intel Core i9-11900KF
2. Remove the left-side cover.
About this task
The following images indicate the location of the voltage regulator heat sink and provide a visual representation of the removal
procedure.
Removing and installing components 49
Steps
1. Loosen the captive screws that secure the voltage regulator heat sink to the system board.
2. Lift the voltage regulator heat sink off the system board.
Installing the voltage regulator heat sink
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the voltage regulator heat sink and provide a visual representation of the
installation procedure.
50 Removing and installing components
Steps
1. Align and place the voltage regulator heat sink on the system board.
2. Tighten the captive screws that secure the voltage regulator heat sink to the system board.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
System board
Removing the system board
Prerequisites
1. Follow the procedure in Before working inside your computer.
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: 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.
NOTE: Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup
program. You must make the appropriate changes again after you replace the system board.
2. Remove the left-side cover.
3. Remove the front cover.
4. Remove the 3.5-inch hard drive, if applicable.
5. Remove the memory modules.
6. Remove the wireless card.
7. Remove the solid-state drive/Intel Optane.
8. Remove the graphics card.
9. Remove the coin-cell battery.
10. Remove the processor fan and heat-sink assembly.
11. Remove the processor.
Removing and installing components 51
About this task
Figure 1. System-board components
1. processor power-cable connector (ATX CPU1)
2. processor power-cable connector (ATX CPU)
3. processor
4. processor-fan cable connector (FAN CPU)
5. memory-module slot (DIMM3)
6. memory-module slot (DIMM1)
7. memory-module slot (DIMM4)
8. memory-module slot (DIMM2)
9. power-button cable
10. hard-drive data-cable connector (SATA0)
11. hard-drive data-cable connector (SATA1)
12. hard-drive data-cable connector (SATA2)
13. optical-drive data-cable connector (SATA3)
14. hard-drive power cable connector (SATA PWR)
15. solid-state drive connector (m.2 PCIe SSD)
16. coin-cell battery
17. wireless-card slot
18. system-board power-cable connector (ATX SYS)
19. PCIe x4 slot
20. PCIe x16 slot
21. PCIe x1 slot
22. chassis-fan cable connector (FAN SYS)
The following images indicate the location of the system board and provide a visual representation of the removal procedure.
52 Removing and installing components
Removing and installing components 53
Steps
1. Lay the computer on the right side.
2. Remove the screw (#6-32) that secures the front I/O-bracket to the chassis.
3. Rotate and remove the front I/O-bracket from the chassis.
4. Disconnect all the cables that are connected to the system board.
5. Remove the eight screws (#6-32) that secure the system board to the chassis.
6. Remove the voltage regulator heat sink.
NOTE: The voltage regulator heat sink is shipped as a separate unit and it does not ship along with the system board. If
reusing the voltage regulator heat sink, remove it from the old system board and transfer it to the new system board.
54 Removing and installing components
7. Remove the screw (#6-32x3.8) and that secures the system board to the chassis.
8. Lift the system board at an angle and remove it off the chassis.
Installing the system board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
Figure 2. System-board components
1. processor power-cable connector (ATX CPU1)
2. processor power-cable connector (ATX CPU)
3. processor
4. processor-fan cable connector (FAN CPU)
5. memory-module slot (DIMM3)
6. memory-module slot (DIMM1)
7. memory-module slot (DIMM4)
8. memory-module slot (DIMM2)
9. power-button cable
10. hard-drive data-cable connector (SATA0)
11. hard-drive data-cable connector (SATA1)
12. hard-drive data-cable connector (SATA2)
13. optical-drive data-cable connector (SATA3)
14. hard-drive power cable connector (SATA PWR)
15. solid-state drive connector (m.2 PCIe SSD)
16. coin-cell battery
17. wireless-card slot
18. system-board power-cable connector (ATX SYS)
19. PCIe x4 slot
20. PCIe x16 slot
Removing and installing components 55
21. PCIe x1 slot
22. chassis-fan cable connector (FAN SYS)
The following images indicate the location of the system board and provide a visual representation of the installation procedure.
56 Removing and installing components
Steps
1. Slide the back I/O-ports on the system board into the front I/O-slots on the chassis and align the screw holes on the system
board with the screw holes on the chassis.
2. Replace the screw (#6-32x3.8) that secures the system board to the chassis.
3. Install the voltage regulator heat sink.
NOTE: The voltage regulator heat sink is shipped as a separate unit and it does not ship along with the system board. If
reusing the voltage regulator heat sink, remove it from the old system board and transfer it to the new system board.
4. Replace the eight screws (#6-32) that secure the system board to the chassis.
5. Route and connect all the cables that you disconnected from the system board.
Removing and installing components 57
6. Align the front I/O-bracket with the slots on the chassis.
7. Replace the screw (#6-32) that secures the front I/O-bracket to the chassis.
Next steps
1. Install the processor.
2. Install the processor fan and heat-sink assembly.
3. Install the coin-cell battery.
4. Install the graphics card.
5. Install the solid-state drive/Intel Optane.
6. Install the wireless card.
7. Install the memory modules.
8. Install the 3.5-inch hard drive, if applicable.
9. Install the front cover.
10. Install the left-side cover.
11. Follow the procedure in After working inside your computer.
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 that you have made to the BIOS using the BIOS setup
program. You must make the appropriate changes again after you replace the system board.
58 Removing and installing components
System setup
NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed.
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.
BIOS overview
The BIOS manages data flow between the computer's operating system and attached devices such as hard disk, video adapter,
keyboard, mouse, and printer.
Entering BIOS setup program
About this task
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.
4
60 System setup
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:
●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
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 listed in this section may or may not appear.
Table 3. System setup options—System information menu
General-System Information
System Information
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.
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 used for the memory.
DIMM 1 Size Displays the DIMM 1 memory size.
DIMM 2 Size Displays the DIMM 2 memory size.
DIMM 3 Size Displays the DIMM 3 memory size.
DIMM 4 Size Displays the DIMM 4 memory size.
PCI Information
SLOT1 Displays the PCI information of the computer.
SLOT2 Displays the PCI information of the computer.
SLOT4 Displays the PCI information of the computer.
System setup 61
Table 3. System setup options—System information menu
General-System Information
SLOT5_M.2 Displays the PCI information of the computer.
SLOT6_M.2 Displays the PCI information of the computer.
Processor Information
Processor Type Displays the processor type.
Core Count Displays the number of cores on the processor.
Processor ID Displays the processor identification code.
Current Clock Speed Displays the current processor clock speed.
Minimum Clock Speed Displays the minimum processor clock speed.
Maximum Clock Speed Displays the maximum processor clock speed.
Processor L2 Cache Displays the Processor L2 Cache size.
Processor L3 Cache Displays the Processor L2 Cache size.
HT Capable Displays whether the processor is HyperThreading (HT) capable.
64-Bit Technology Displays whether 64-bit technology is used.
Device Information
SATA-0 Displays the SATA device information of the computer.
SATA-1 Displays the SATA device information of the computer.
SATA-2 Displays the SATA device information of the computer.
SATA-3 Displays the SATA device information of the computer.
M.2 PCIe SSD-2 Displays the M.2 PCIe SSD information of the computer.
LOM MAC Address Displays the LOM MAC address of the computer.
Video Controller Displays the video controller type 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.
Boot Sequence
Boot Sequence Displays the boot sequence.
Boot List Option Displays the available boot options.
UEFI Boot Path Security
Always,Except Internal HDD Enable or disable the system to prompt the user to enter the Admin password
when booting a UEFI boot path from the F12 boot menu. Default: Enabled
Always Enable or disable the system to prompt the user to enter the Admin password
when booting a UEFI boot path from the F12 boot menu. Default: Disabled
Never Enable or disable the system to prompt the user to enter the Admin password
when booting a UEFI boot path from the F12 boot menu. Default: Disabled
Date/Time Displays the current date in MM/DD/YY format and current time in HH:MM:SS
AM/PM format.
Table 4. System setup options—System Configuration menu
System Configuration
Integrated NIC Controls the on-board LAN controller.
Enable UEFI Network Stack Enable or disable UEFI Network Stack.
62 System setup
Table 4. System setup options—System Configuration menu
System Configuration
SATA Operation Configure operating mode of the integrated SATA hard drive controller.
Drives Enable or disable various drives on board.
SATA-0 Displays the SATA device information of the computer.
SATA-1 Displays the SATA device information of the computer.
SATA-2 Displays the SATA device information of the computer.
SATA-3 Displays the SATA device information of the computer.
M.2 PCIe SSD-2 Displays the M.2 PCIe SSD information of the computer.
SMART Reporting Enable or disable SMART Reporting during system startup.
USB Configuration
Enable Boot Support Enable or disable booting from USB mass storage devices such as external
hard drive, optical drive, and USB drive.
Enable Front USB Ports Enable or disable the front USB ports.
Enable Rear USB Ports Enable or disable the rear USB ports.
Front USB Configuration Enable or disable the front USB ports.
Rear USB Configuration Enable or disable the rear USB ports.
Audio Enable or disable the integrated audio controller.
Table 5. System setup options—Video menu
Video
Multi-Display Enable or disable multiple displays.
Primary Display Set or change the primary display.
Table 6. System setup options—Security menu
Security
Internal HDD-2 Password Set, change, or delete the internal hard-disk drive password.
Internal HDD-3 Password Set, change, or delete the internal hard-disk drive password.
M.2 SATA SSD Password Set, change, or delete the M.2 solid-state drive password.
Strong Password Enable or disable strong passwords.
Password Configuration Control the minimum and maximum number of characters allowed for Admin
and System passwords.
Password Change Enable or disable changes to the System and Hard Disk passwords when an
administrator password is set.
UEFI Capsule Firmware Updates Enable or disable BIOS updates through UEFI capsule update packages.
PTT Security
PTT On Enable or disable Platform Trust Technology (PTT) visibility to the operating
system.
Clear Default: Disabled
PPI ByPass for Clear Command Enable or disable the TPM Physical Presence Interface (PPI). When enabled,
this setting will allow the OS to skip BIOS PPI user prompts when issuing
the Clear command. Changes to this setting take effect immediately.Default:
Disabled
Absolute(R) Enable or disable the BIOS module interface of the optional Computrace(R)
Service from Absolute Software.
System setup 63
Table 6. System setup options—Security menu
Security
Master Password Lockout Disables the master password support. Hard Disk passwords need to be
cleared before changing the setting.
SMM Security Mitigation Enable or disable SMM Security Mitigation
Table 7. System setup options—Secure Boot menu
Secure Boot
Secure Boot Enable Enable or disable the secure boot feature.
Secure Boot Mode Modifies the behavior of Secure Boot to allow evaluation or enforcement of
UEFI driver signatures.
●Deployed Mode-Default: Enabled
●Audit Mode-Default: Disabled
Deployed Mode Enable or disable the deployed mode.
Audit Mode Enable or disable the audit mode.
Expert Key Management
Expert Key Management Enable or disable Expert Key Management.
Custom Mode Key Management Select the custom values for expert key management.
Table 8. System setup options—Intel Software Guard Extensions menu
Intel Software Guard Extensions
Intel SGX Enable Enable or disable Intel Software Guard Extensions.
Enclave Memory Size Set the Intel Software Guard Extensions Enclave Reserve Memory Size.
Performance
Multi Core Support Enable multiple cores.
Default: Enabled.
Intel SpeedStep Enable or disable Intel Speedstep Technology.
Default: Enabled.
NOTE: If enabled, the processor clock speed and core voltage are adjusted
dynamically based on the processor load.
C-States Control Enable or disable additional processor sleep states.
Default: Enabled.
Intel TurboBoost Enable or disable Intel TurboBoost mode of the processor.
Default: Enabled.
HyperThread control Enable or disable HyperThreading in the processor.
Default: Enabled.
Power Management
AC Recovery Sets what action the computer takes when power is restored.
Enable Intel Speed Shift Technology Enable or disable Intel Speed Shift Technology.
Auto On Time Enable to set the computer to turn on automatically every day or on a
preselected date and time. This option can be configured only if the Auto On
Time is set to Everyday, Weekdays or Selected Days.
Default: Disabled.
64 System setup
Table 8. System setup options—Intel Software Guard Extensions menu
Intel Software Guard Extensions
Deep Sleep Control Deep Sleep Control enables you to control the Deep Sleep mode support.
USB Wake Support USB Wake Support enables the USB devices to wake the computer from
Standby.
Fan Control Override Enable or disable Fan control Override.
Wake on LAN/WLAN Enables the computer to be powered on by special LAN signals.
Block sleep Enables you to block entering to sleep mode in OS environment.
POST Behavior
Numlock LED Enables the NumLock function when computer boots.
Keyboard Errors Enables the keyboard error detection.
Fastboot Enable to set the speed of the boot process.
Default: Thorough.
Extend BIOS POST Time Configure additional pre-boot delay.
Full Screen Logo Enable or disable to display full screen logo.
Warnings and Errors Sets the boot process to pause when Warnings or Errors are detected.
Table 9. System setup options—Virtualization Support menu
Virtualization Support
Virtualization Specify whether a Virtual Machine Monitor (VMM) can utilize the additional
hardware capabilities provided by Intel Virtualization Technology.
VT for Direct I/O Specify whether a Virtual Machine Monitor (VMM) can utilize the additional
hardware capabilities provided by Intel Virtualization Technology for Direct I/O.
Table 10. System setup options—Wireless menu
Wireless
Wireless Device Enable Enable or disable internal wireless devices.
Table 11. System setup options—Maintenance menu
Maintenance
Service Tag Display the system’s Service Tag.
Asset Tag Create a system Asset Tag.
SERR Messages Enable or disable SERR messages.
BIOS Downgrade Control flashing of the system firmware to previous revisions.
Data Wipe Enable to securely erase data from all internal storage devices.
BIOS Recovery Enable the user to recover from certain corrupted BIOS conditions from a
recovery file on the user primary hard drive or an external USB key.
First Power On Date Enable the user to set the Ownership date.
Table 12. System setup options—System Logs menu
System Logs
BIOS Events Display BIOS events.
Table 13. System setup options—SupportAssist System Resolution menu
System setup 65
Table 13. System setup options—SupportAssist System Resolution menu
SupportAssist System Resolution
Auto OS Recovery Threshold Control the automatic boot flow for SupportAssist System Resolution Console
and for Dell OS Recovery tool.
SupportAssist OS Recovery Enable or disable the boot flow for SupportAssist OS Recovery tool in the
event of certain system errors
BIOSConnect BIOSConnect enable or disable cloud Service OS upon absence of Local OS
Recovery.
System and setup password
Table 14. System and setup password
Password type Description
System password Password that you must enter to log on to your system.
Setup password Password that you must enter to access and make changes to
the BIOS settings of your computer.
You can create a system password and a setup password to secure your computer.
CAUTION: The password features provide a basic level of security for the data on your computer.
CAUTION: Anyone can access the data stored on your computer if it is not locked and left unattended.
NOTE: System and setup password feature is disabled.
Assigning a system setup password
Prerequisites
You can assign a new System or Admin Password only when the status is in Not Set.
About this task
To enter the system setup, press F2 immediately after a power-on or reboot.
Steps
1. In the System BIOS or System Setup screen, select Security and press Enter.
The Security screen is displayed.
2. Select System/Admin Password and create a password in the Enter the new password field.
Use the following guidelines to assign the system password:
●A password can have up to 32 characters.
●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. Type the system password that you entered earlier in the Confirm new password field and click OK.
4. Press Esc and a message prompts you to save the changes.
5. Press Y to save the changes.
The computer reboots.
66 System setup
Deleting or changing an existing system setup password
Prerequisites
Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing
System and Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is
Locked.
About this task
To enter the System Setup, press F2 immediately after a power-on or reboot.
Steps
1. In the System BIOS or System Setup screen, select System Security and press Enter.
The System Security screen is displayed.
2. In the System Security screen, verify that Password Status is Unlocked.
3. Select System Password, alter or delete the existing system password and press Enter or Tab.
4. Select Setup Password, alter or delete the existing setup password and press Enter or Tab.
NOTE: If you change the System and/or Setup password, re enter the new password when prompted. If you delete the
System and Setup password, confirm the deletion when prompted.
5. Press Esc and a message prompts you to save the changes.
6. Press Y to save the changes and exit from System Setup.
The computer restarts.
Real Time Clock (RTC) reset
The Real Time Clock (RTC) reset function allows you or the service technician to recover the recently launched model Dell
computers from No POST/No Boot/No Power situations. You can initiate the RTC reset on the computer from a power-off
state only if it is connected to AC power. Press and hold the power button for 30 seconds. The computer RTC reset occurs
after you release the power button.
NOTE: The RTC reset is aborted if the power button is held for less than 25 seconds or more than 40 seconds.
The RTC reset restores the BIOS to defaults and resets the computer's date and time. The computer restarts several times
during the reset process. Depending on how the computer is configured, you may see LED indications during the period the
power button is held and after it is released. Once the reset is complete, the computer restarts and the Dell logo appears
indicates reset success.
CAUTION: Once RTC reset is complete, the computer may remain in a no-boot status until the time, date, and
other BIOS settings are correctly set to boot in Windows. Failing to boot immediately after a reset does not
mean that the reset has failed. You must restore the previous BIOS settings, such as the SATA Operation mode
(ex. RAID On AHCI) for the computer to reboot normally.
The following items are unaffected by the RTC reset:
●TPM (remains on and enabled if it was in that state prior to RTC reset)
●Service Tag
●Asset Tag
●Ownership Tag
●Admin Password
●System Password
●Hard drive Password
●Key Databases
●System Logs
The following items may or may not reset based on your custom BIOS setting selections:
●Boot List
●Secure Boot Enable
●Allow BIOS Downgrade
System setup 67
●Password clear
The Master System Password is used to clear the admin and computer password.
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.
Clearing BIOS (System Setup) and System passwords
About this task
To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell.
NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying
Windows or your application.
68 System setup
Troubleshooting
Locate the Service Tag or Express Service Code of
your Dell computer
Your Dell computer is uniquely identified by a Service Tag or Express Service Code. To view relevant support resources for your
Dell computer, we recommend entering the Service Tag or Express Service Code at www.dell.com/support.
For more information on how to find the Service Tag for your computer, see Locate the Service Tag for your Dell Laptop.
SupportAssist diagnostics
About this task
The SupportAssist diagnostics (previously known as ePSA diagnostics) performs a complete check of your hardware. The
SupportAssist diagnostics is embedded in the BIOS and is launched by it internally. The SupportAssist diagnostics provides a set
of options for particular devices or device groups. It allows 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 and provide extra information about the failed device(s)
●View status messages that indicate if the tests are completed successfully
●View error messages that indicate if problems were encountered during the test
NOTE: Some tests are meant for specific devices and require user interaction. Ensure that you are present in front of the
computer when the diagnostic tests are performed.
For more information, see SupportAssist Pre-Boot System Performance Check.
System-diagnostic lights
The power-status light indicates the power status of the computer. These are the power states:
Solid white—Computer is in S0 state. This is the normal power state of the computer.
Blinking white—Computer is in a low-power state, S3. This does not indicate a fault.
Solid amber—Computer is experiencing a boot failure, including the power-supply unit.
Blinking amber—Computer is experiencing a boot failure but the power-supply unit is functioning correctly.
Off—Computer is in sleep state, hibernation mode, or turned off.
The power-status light may also blink amber or white according to predefined "beep codes" indicating various 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.
NOTE: The following diagnostic light codes and recommended solutions are intended for Dell service technicians to
troubleshoot problems. You should only perform troubleshooting and repairs as authorized or directed by the Dell technical
support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
Table 15. Diagnostic light codes
5
Troubleshooting 69
Table 15. Diagnostic light codes
Diagnostic light codes
(Amber, White)
Problem description
1,2 Unrecoverable SPI Flash Failure
2,1 CPU configuration or CPU failure
2,2 System board: BIOS or Read-Only Memory
(ROM) failure
2,3 No memory or Random-Access Memory (RAM)
detected
2,4 Memory or Random-Access Memory (RAM)
failure
2,5 Invalid memory installed
2,6 System board/Chipset Error/Clock failure/
Gate A20 failure/Super I/O failure/Keyboard
controller failure
3,1 CMOS battery failure
3,2 PCI of Video card/chip failure
3,3 BIOS Recovery 1: BIOS recovery image not
found
3,4 BIOS Recovery 2: Recovery image found but
invalid
3,5 Power Rail Failure: EC ran into power
sequencing failure
3,6 Paid SPI Volume Error
3,7 Management Engine (ME) error. Timeout
waiting on ME to reply to HECI message.
4,2 CPU Power cable connection issue
Diagnostic error messages
Table 16. Diagnostic error messages
Error messages Description
AUXILIARY DEVICE FAILURE The touchpad or external mouse may be faulty. For an
external mouse, check the cable connection. Enable the
Pointing Device option in the System Setup program.
BAD COMMAND OR FILE NAME Ensure that you have spelled the command correctly, put
spaces in the proper place, and used the correct path name.
CACHE DISABLED DUE TO FAILURE The primary cache internal to the microprocessor has failed.
Contact Dell
CD DRIVE CONTROLLER FAILURE The optical drive does not respond to commands from the
computer.
DATA ERROR The hard drive cannot read the data.
DECREASING AVAILABLE MEMORY One or more memory modules may be faulty or improperly
seated. Reinstall the memory modules or, if necessary, replace
them.
DISK C: FAILED INITIALIZATION The hard drive failed initialization. Run the hard drive tests in
Dell Diagnostics.
70 Troubleshooting
Table 16. Diagnostic error messages (continued)
Error messages Description
DRIVE NOT READY The operation requires a hard drive in the bay before it can
continue. Install a hard drive in the hard drive bay.
ERROR READING PCMCIA CARD The computer cannot identify the ExpressCard. Reinsert the
card or try another card.
EXTENDED MEMORY SIZE HAS CHANGED The amount of memory recorded in non-volatile memory
(NVRAM) does not match the memory module installed in the
computer. Restart the computer. If the error appears again,
Contact Dell
THE FILE BEING COPIED IS TOO LARGE FOR THE
DESTINATION DRIVE
The file that you are trying to copy is too large to fit on the
disk, or the disk is full. Try copying the file to a different disk
or use a larger capacity disk.
A FILENAME CANNOT CONTAIN ANY OF THE
FOLLOWING CHARACTERS: \ / : * ? " < > | -
Do not use these characters in filenames.
GATE A20 FAILURE A memory module may be loose. Reinstall the memory module
or, if necessary, replace it.
GENERAL FAILURE The operating system is unable to carry out the command.
The message is usually followed by specific information.
For example, Printer out of paper. Take the
appropriate action.
HARD-DISK DRIVE CONFIGURATION ERROR The computer cannot identify the drive type. Shut down the
computer, remove the hard drive, and boot the computer from
an optical drive. Then, shut down the computer, reinstall the
hard drive, and restart the computer. Run the Hard Disk
Drive tests in Dell Diagnostics.
HARD-DISK DRIVE CONTROLLER FAILURE 0 The hard drive does not respond to commands from the
computer. Shut down the computer, remove the hard drive,
and boot the computer from an optical drive. Then, shut
down the computer, reinstall the hard drive, and restart the
computer. If the problem persists, try another drive. Run the
Hard Disk Drive tests in Dell Diagnostics.
HARD-DISK DRIVE FAILURE The hard drive does not respond to commands from the
computer. Shut down the computer, remove the hard drive,
and boot the computer from an optical drive. Then, shut
down the computer, reinstall the hard drive, and restart the
computer. If the problem persists, try another drive. Run the
Hard Disk Drive tests in Dell Diagnostics.
HARD-DISK DRIVE READ FAILURE The hard drive may be defective. Shut down the computer,
remove the hard drive, and boot the computer from an
optical. Then, shut down the computer, reinstall the hard
drive, and restart the computer. If the problem persists,
try another drive. Run the Hard Disk Drive tests in Dell
Diagnostics.
INSERT BOOTABLE MEDIA The operating system is trying to boot to non-bootable media,
such as an optical drive. Insert bootable media.
INVALID CONFIGURATION INFORMATION-PLEASE RUN
SYSTEM SETUP PROGRAM
The system configuration information does not match the
hardware configuration. The message is most likely to occur
after a memory module is installed. Correct the appropriate
options in the system setup program.
KEYBOARD CLOCK LINE FAILURE For external keyboards, check the cable connection. Run the
Keyboard Controller test in Dell Diagnostics.
KEYBOARD CONTROLLER FAILURE For external keyboards, check the cable connection. Restart
the computer, and avoid touching the keyboard or the mouse
Troubleshooting 71
Table 16. Diagnostic error messages (continued)
Error messages Description
during the boot routine. Run the Keyboard Controller test in
Dell Diagnostics.
KEYBOARD DATA LINE FAILURE For external keyboards, check the cable connection. Run the
Keyboard Controller test in Dell Diagnostics.
KEYBOARD STUCK KEY FAILURE For external keyboards or keypads, check the cable
connection. Restart the computer, and avoid touching the
keyboard or keys during the boot routine. Run the Stuck Key
test in Dell Diagnostics.
LICENSED CONTENT IS NOT ACCESSIBLE IN
MEDIADIRECT
Dell MediaDirect cannot verify the Digital Rights Management
(DRM) restrictions on the file, so the file cannot be played.
MEMORY ADDRESS LINE FAILURE AT ADDRESS, READ
VALUE EXPECTING VALUE
A memory module may be faulty or improperly seated.
Reinstall the memory module or, if necessary, replace it.
MEMORY ALLOCATION ERROR The software you are attempting to run is conflicting with the
operating system, another program, or a utility. Shut down
the computer, wait for 30 seconds, and then restart it. Run
the program again. If the error message still appears, see the
software documentation.
MEMORY DOUBLE WORD LOGIC FAILURE AT ADDRESS,
READ VALUE EXPECTING VALUE
A memory module may be faulty or improperly seated.
Reinstall the memory module or, if necessary, replace it.
MEMORY ODD/EVEN LOGIC FAILURE AT ADDRESS,
READ VALUE EXPECTING VALUE
A memory module may be faulty or improperly seated.
Reinstall the memory module or, if necessary, replace it.
MEMORY WRITE/READ FAILURE AT ADDRESS, READ
VALUE EXPECTING VALUE
A memory module may be faulty or improperly seated.
Reinstall the memory module or, if necessary, replace it.
NO BOOT DEVICE AVAILABLE The computer cannot find the hard drive. If the hard drive is
your boot device, ensure that the drive is installed, properly
seated, and partitioned as a boot device.
NO BOOT SECTOR ON HARD DRIVE The operating system may be corrupted, Contact Dell.
NO TIMER TICK INTERRUPT A chip on the system board may be malfunctioning. Run the
System Set tests in Dell Diagnostics.
NOT ENOUGH MEMORY OR RESOURCES. EXIT SOME
PROGRAMS AND TRY AGAIN
You have too many programs open. Close all windows and
open the program that you want to use.
OPERATING SYSTEM NOT FOUND Reinstall the operating system. If the problem persists,
Contact Dell.
OPTIONAL ROM BAD CHECKSUM The optional ROM has failed. Contact Dell.
SECTOR NOT FOUND The operating system cannot locate a sector on the hard
drive. You may have a defective sector or corrupted File
Allocation Table (FAT) on the hard drive. Run the Windows
error-checking utility to check the file structure on the hard
drive. See Windows Help and Support for instructions (click
Start > Help and Support). If a large number of sectors are
defective, back up the data (if possible), and then format the
hard drive.
SEEK ERROR The operating system cannot find a specific track on the hard
drive.
SHUTDOWN FAILURE A chip on the system board may be malfunctioning. Run
the System Set tests in Dell Diagnostics. If the message
reappears, Contact Dell.
TIME-OF-DAY CLOCK LOST POWER System configuration settings are corrupted. Connect your
computer to an electrical outlet to charge the battery. If
72 Troubleshooting
Table 16. Diagnostic error messages
Error messages Description
the problem persists, try to restore the data by entering the
System Setup program, then immediately exit the program. If
the message reappears, Contact Dell.
TIME-OF-DAY CLOCK STOPPED The reserve battery that supports the system configuration
settings may require recharging. Connect your computer to an
electrical outlet to charge the battery. If the problem persists,
Contact Dell.
TIME-OF-DAY NOT SET-PLEASE RUN THE SYSTEM
SETUP PROGRAM
The time or date stored in the system setup program does
not match the system clock. Correct the settings for the Date
and Time options.
TIMER CHIP COUNTER 2 FAILED A chip on the system board may be malfunctioning. Run the
System Set tests in Dell Diagnostics.
UNEXPECTED INTERRUPT IN PROTECTED MODE The keyboard controller may be malfunctioning, or a memory
module may be loose. Run the System Memory tests and the
Keyboard Controller test in Dell Diagnostics or Contact
Dell.
X:\ IS NOT ACCESSIBLE. THE DEVICE IS NOT
READY
Insert a disk into the drive and try again.
Enabling Intel Optane memory
Steps
1. On the taskbar, click the search box, and then type Intel Rapid Storage Technology.
2. Click Intel Rapid Storage Technology.
The Intel Rapid Storage Technology window is displayed.
3. On the 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
About this task
CAUTION: After disabling Intel Optane memory, do not uninstall the driver for Intel Rapid Storage Technology
as it will result in a blue screen error. The Intel Rapid Storage Technology user interface can be removed without
uninstalling the driver.
NOTE: Disabling Intel Optane memory is required before removing the SATA storage device accelerated by the Intel Optane
memory module from the computer.
Steps
1. On the taskbar, click the search box, and then type Intel Rapid Storage Technology.
2. Click Intel Rapid Storage Technology.
The Intel Rapid Storage Technology window is displayed.
3. On the Intel Optane memory tab, click Disable to disable the Intel Optane memory.
Troubleshooting 73
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.
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)
Steps
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.
Flashing the BIOS
About this task
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:
Steps
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.
74 Troubleshooting
9. Double-click the BIOS update file icon and follow the instructions on the screen.
Flashing the BIOS from the F12 One-Time boot menu
Update your computer BIOS using the BIOS update.exe file that is copied to a FAT32 USB drive and booting from the F12
One-Time boot menu.
About this task
BIOS Update
You can run the BIOS update file from Windows using a bootable USB drive or you can also update the BIOS from the F12
One-Time boot menu on the computer.
Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12
One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the
BIOS supports this BIOS update option.
NOTE: Only computers with BIOS Flash Update option in the F12 One-Time boot menu can use this function.
Updating from the One-Time boot menu
To update your BIOS from the F12 One-Time boot menu, you need the following:
●USB drive formatted to the FAT32 file system (key does not have to be bootable)
●BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive
●AC power adapter that is connected to the computer
●Functional computer battery to flash the BIOS
Perform the following steps to perform the BIOS update flash process from the F12 menu:
CAUTION: Do not turn off the computer during the BIOS update process. The computer may not boot if you turn
off your computer.
Steps
1. From a turn off state, insert the USB drive where you copied the flash into a USB port of the computer.
2. Turn on the computer and press F12 to access the One-Time Boot Menu, select BIOS Update using the mouse or arrow keys
then press Enter.
The flash BIOS menu is displayed.
3. Click Flash from file.
4. Select external USB device.
5. Select the file and double-click the flash target file, and then click Submit.
6. Click Update BIOS. The computer restarts to flash the BIOS.
7. The computer will restart after the BIOS update is completed.
WiFi power cycle
About this task
If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be
performed. The following procedure provides the instructions on how to conduct a WiFi power cycle:
NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.
Steps
1. Turn off your computer.
2. Turn off the modem.
3. Turn off the wireless router.
4. Wait for 30 seconds.
5. Turn on the wireless router.
Troubleshooting 75
6. Turn on the modem.
7. Turn on your computer.
Flea power release
About this task
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:
Steps
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.
76 Troubleshooting
Getting help and contacting Dell
Self-help resources
You can get information and help on Dell products and services using these self-help resources:
Table 17. Self-help resources
Self-help resources Resource location
Information about Dell products and services www.dell.com
My Dell app
Tips
Contact Support In Windows search, type Contact Support, and press
Enter.
Online help for operating system www.dell.com/support/windows
Access top solutions, diagnostics, drivers and downloads, and
learn more about your computer through videos, manuals and
documents.
Your Dell computer is uniquely identified by a Service Tag or
Express Service Code. To view relevant support resources for
your Dell computer, enter the Service Tag or Express Service
Code at www.dell.com/support.
For more information on how to find the Service Tag for your
computer, see Locate the Service Tag on your computer.
Dell knowledge base articles for a variety of computer
concerns
1. Go to www.dell.com/support.
2. On the menu bar at the top of the Support page, select
Support > Knowledge Base.
3. In the Search field on the Knowledge Base page, type the
keyword, topic, or model number, and then click or tap the
search icon to view the related articles.
Contacting Dell
To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell.
NOTE: Availability varies by country/region and product, and some services may not be available in your country/region.
NOTE: If you do not have an active Internet connection, you can find contact information about your purchase invoice,
packing slip, bill, or Dell product catalog.
6
Getting help and contacting Dell 77