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Manuals
OptiPlex 3090 Ultra Service Manual
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Notes, cautions, and warnings
Working on your computer
Safety instructions
Before working inside your device
Safety precautions
Electrostatic discharge—ESD protection
ESD field service kit
Transporting sensitive components
After working inside your device
Stands
Fixed stand
Installing the device on a fixed stand
Removing the device from a fixed stand
Monitor tilt angle
Pro 1.0 Height-adjustable stand-HAS
Installing the device on a Pro 1 height-adjustable stand
Removing the device from Pro 1 height-adjustable stand
Stand tilt, pivot, and swivel images
Offset VESA mount
Installing device on offset VESA mount
Removing the device from offset VESA mount
Pro 2 Height-adjustable stand-HAS
Installing the device on a Pro 2 height-adjustable stand
Removing the device from a Pro 2 height-adjustable stand
Stand tilt, pivot, and swivel images
Wall Mount
Installing device on Wall Mount
Removing the device from Wall Mount
Removing and installing components
Recommended tools
Screw List
Major components of your system
Hard-drive assembly
Removing the hard-drive assembly
Installing the hard-drive assembly
Hard-drive bracket
Removing the hard-drive bracket
Installing the hard-drive bracket
Hard drive
Removing the hard drive
Installing the hard drive
Cover
Removing the cover
Installing the cover
Memory module
Removing the memory module
Installing the memory module
WLAN card
Removing the WLAN card
Installing the WLAN card
Internal solid-state drive
Removing the solid-state drive
Installing the solid-state drive
eMMC Storage module
Removing the eMMC storage module
Installing the eMMC storage module
System fan
Removing the system fan
Installing the system fan
Power button
Removing the power button
Installing the power button
Coin-cell battery
Removing the coin-cell battery
Installing the coin-cell battery
System board
Removing the system board
Installing the system board
Heat-sink
Removing the heat-sink
Installing the heat-sink
Replacing the chassis
Software
Drivers and downloads
System setup
BIOS overview
Entering BIOS setup program
Navigation keys
One time boot menu
System setup options
Updating the BIOS
Updating the BIOS in Windows
Updating the BIOS in Linux and Ubuntu
Updating the BIOS using the USB drive in Windows
Updating the BIOS from the F12 One-Time boot menu
System and setup password
Assigning a system setup password
Deleting or changing an existing system setup password
Clearing BIOS (System Setup) and System passwords
Troubleshooting
Dell SupportAssist Pre-boot System Performance Check diagnostics
Running the SupportAssist Pre-Boot System Performance Check
Diagnostic LED
Recovering the operating system
Real-Time Clock (RTC Reset)
Backup media and recovery options
WiFi power cycle
Getting help and contacting Dell
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