1 Before working inside your computer............................................................................................................. 7
Before you begin ................................................................................................................................................................7
Inside view of your computer..........................................................................................................................................10
System board components.............................................................................................................................................. 11
4 Removing the computer cover .....................................................................................................................12
6 Removing the front bezel ............................................................................................................................ 14
7 Replacing the front bezel..............................................................................................................................16
15 Replacing the coin-cell battery...................................................................................................................28
16 Removing the wireless card........................................................................................................................29
24 Removing the processor............................................................................................................................ 42
25 Replacing the processor............................................................................................................................ 43
Downloading the audio driver.........................................................................................................................................60
Downloading the graphics driver................................................................................................................................... 60
Downloading the USB driver...........................................................................................................................................61
Downloading the chipset driver..................................................................................................................................... 62
Downloading the network driver....................................................................................................................................62
35 System setup.............................................................................................................................................64
System Setup Options.................................................................................................................................................... 65
Flashing the BIOS............................................................................................................................................................ 68
36 System and setup password...................................................................................................................... 69
Assigning a system password and setup password.....................................................................................................69
Deleting or changing an existing system setup password.......................................................................................... 70
Flashing the BIOS.............................................................................................................................................................73
Reinstall Windows using a USB recovery drive............................................................................................................ 73
Enhanced Pre-Boot System Assessment (ePSA) diagnostics................................................................................... 74
Running the ePSA diagnostics..................................................................................................................................74
Flea power release........................................................................................................................................................... 75
Wi-Fi power cycle............................................................................................................................................................ 75
38 Getting help and contacting Dell................................................................................................................76
NOTE: The images in this document may dier from your computer depending on the conguration you ordered.
Topics:
•Before you begin
•Safety instructions
•Recommended tools
•Screw list
Before you begin
1 Save and close all open les and exit all open applications.
2 Shut down your computer. Click Start > Power > Shut down.
NOTE
: If you are using a dierent operating system, see the documentation of your operating system for shut-down
instructions.
3 Disconnect your computer and all attached devices from their electrical outlets.
4 Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
5 Remove any media card and optical disc from your computer, if applicable.
6 After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board.
1
Safety instructions
Use the following safety guidelines to protect your computer from potential damage and ensure your personal safety.
WARNING
best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.
WARNING: Disconnect all power sources before opening the computer cover or panels. After you nish working inside the
computer, replace all covers, panels, and screws before connecting to the electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is at and clean.
CAUTION: To avoid damaging the components and cards, handle them by their edges, and avoid touching pins and 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 shipped
with the product or at www.dell.com/regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the
metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate static electricity,
which could harm internal components.
CAUTION: When you disconnect a cable, pull on its connector or on its pull tab, not on the cable itself. Some cables have
connectors with locking tabs or thumb-screws that you must disengage before disconnecting the cable. When disconnecting
cables, keep them evenly aligned to avoid bending any connector pins. When connecting cables, ensure that the ports and
connectors are correctly oriented and aligned.
: Before working inside your computer, read the safety information that shipped with your computer. For more safety
Before working inside your computer7
CAUTION: Press and eject any installed card from the media-card reader.
Recommended tools
The procedures in this document may require the following tools:
•Phillips screwdriver #1
•Plastic scribe
Screw list
The following table provides the list of screws that are used for securing dierent components to the computer.
Table 1. Screw list
ComponentSecured toScrew typeQuantityScrew image
Computer coverChassis#6-32x6.352
Solid-state drive/Intel
Optane memory
Card-retention bracketChassis#6-32x6.351
Wireless cardSystem boardM2x3.51
Power-supply unitChassis#6-32x6.354
3.5-inch hard driveChassis#6-32x3.64
2.5-inch hard drive(s)
NOTE: Depending
on the
conguration
ordered there may
be up to two 2.5inch hard drives
installed.
Optical driveChassisM2x22
System boardM2x3.51
ChassisM3x3.52-4
Front-I/O bracketChassis#6-32x6.351
System boardChassis#6-32x6.358
System boardChassis#6-32x4.8, stando1
8Before working inside your computer
After working inside your computer
CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.
1 Replace all screws and ensure that no stray screws remain inside your computer.
2 Connect any external devices, peripherals, or cables you removed before working on your computer.
3 Replace any media cards, discs, or any other parts that you removed before working on your computer.
4 Connect your computer and all attached devices to their electrical outlets.
5 Turn on your computer.
2
After working inside your computer9
Technical overview
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Topics:
•Inside view of your computer
•System board components
Inside view of your computer
3
Figure 1. Inside view of your computer
processor fan and heat-sink assembly2solid-state drive/Intel Optane memory