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Manuals
Inspiron 27-7790 Service Manual
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Notes, cautions, and warnings
Safety instructions
Before working inside your computer
Before you begin
Electrostatic discharge—ESD protection
ESD field service kit
Transporting sensitive components
After working inside your computer
Removing and installing components
Inside view of your computer
Recommended tools
Screw list
Back cover
Removing the back cover
Installing the back cover
Bottom cover
Removing the bottom cover
Installing the bottom cover
Stand
Removing the stand
Installing the stand
Hard drive
Removing the hard drive
Installing the hard drive
System-board shield
Removing the system-board shield
Installing the system-board shield
Memory modules
Removing the memory modules
Installing the memory modules
Coin-cell battery
Removing the coin-cell battery
Installing the coin-cell battery
Heat sink
Removing the heat sink
Installing the heat sink
Wireless card
Removing the wireless card
Installing the wireless card
Solid-state drive
Removing the solid-state drive
Installing the solid-state drive
Media-card reader
Removing the media-card reader
Installing the media-card reader
Speakers
Removing the speakers
Installing the speakers
Microphones
Removing the microphones
Installing the mircrophones
Fan
Removing the fan
Installing the fan
Antennas
Removing the antennas
Installing the antennas
Camera
Removing the camera
Installing the camera
Power-button board
Removing the power-button board
Installing the power-button board
System board
Removing the system board
Installing the system board
Base panel
Removing the base panel
Installing the base panel
Display panel
Removing the display panel
Installing the display panel
Device drivers
Intel Chipset Software Installation Utility
Video drivers
Intel Serial IO driver
Intel Trusted Execution Engine Interface
Intel Virtual Button driver
Wireless and Bluetooth drivers
System setup
System setup
Entering BIOS setup program
Navigation keys
Boot Sequence
System setup options
Clearing CMOS settings
Clearing forgotten passwords
Troubleshooting
Enhanced Pre-Boot System Assessment (ePSA) diagnostics
Running the SupportAssist Pre-Boot System Performance Check
Display built-in self test
Diagnostics
Recovering the operating system
Flashing BIOS (USB key)
Flashing the BIOS
WiFi power cycle
Flea power release
Getting help and contacting Dell
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