User Manual
Table Of Contents
- XPS 15 Service Manual
- Before working inside your computer
- After working inside your computer
- Removing the base cover
- Replacing the base cover
- Removing the battery (half-length)
- Replacing the battery (half-length)
- Removing the battery (full-length)
- Replacing the battery (full-length)
- Removing the hard drive
- Replacing the hard drive
- Removing the solid-state drive (half-length)
- Replacing the solid-state drive (half-length)
- Removing the solid-state drive (full-length)
- Replacing the solid-state drive (full-length)
- Removing the speakers
- Replacing the speakers
- Removing the wireless card
- Replacing the wireless card
- Removing the fans
- Replacing the fans
- Removing the heat-sink assembly
- Replacing the heat-sink assembly
- Removing the memory modules
- Replacing the memory modules
- Removing the system board
- Replacing the system board
- Removing the audio daughter-board
- Replacing the audio daughter-board
- Removing the coin-cell battery
- Replacing the coin-cell battery
- Removing the keyboard
- Replacing the keyboard
- Removing the display assembly
- Replacing the display assembly
- Removing the power-adapter port
- Replacing the power-adapter port
- Removing the antenna cover
- Replacing the antenna cover
- Removing the display hinges
- Replacing the display hinges
- Removing the antenna module
- Replacing the antenna module
- Removing the palm-rest assembly
- Replacing the palm-rest assembly
- BIOS overview
- Diagnostics
- Getting help and contacting Dell

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 the BIOS setup program
1 Turn on or restart your computer.
2 Press F2 when the Dell logo is displayed on the screen to enter the BIOS setup
program.
You can change the user-definable settings in BIOS setup program.
Timing key sequences
The keyboard is not the first device initialized by Setup. As a result, if you press a
keystroke too early, the keyboard is locked out. In such case, a keyboard error
message is displayed on the screen, and you cannot restart your computer with the
Ctrl+Alt+Del key combination.
To prevent the keyboard from locking, wait until the keyboard is initialized completely.
The keyboard is initialized if one of the following occurs:
• The keyboard lights flash.
• The F2=Setup prompt appears at the top-right corner of the screen during boot.
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.
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