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Manuals
Dell OptiPlex 5055 Small Form Factor Owner's Manual
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Notes, cautions, and warnings
Working on your computer
Safety instructions
Turning off your computer
Turning off your — Windows
Before working inside your computer
After working inside your computer
Chassis
Front chassis view
Back chassis view
Disassembly and reassembly
Back cover
Removing cover
Installing cover
Front Bezel
Removing the front bezel
Installing front bezel
Storage device
Removing 2.5–inch hard drive assembly
Removing 2.5–inch hard drive from the hard drive bracket
Installing 2.5–inch hard drive into the hard drive bracket
Installing 2.5–inch hard drive assembly
Expansion card
Removing PCIe expansion card
Installing PCIe expansion card
Cooling shroud
Removing the cooling shroud
Installing cooling shroud
Coin-cell battery
Removing coin cell battery
Installing coin cell battery
Optical drive
Removing optical drive
Installing optical drive
M.2 PCIe SSD
Removing M.2 PCIe SSD
Installing M.2 PCIe SSD
Heat sink assembly
Removing heat sink assembly
Installing heat sink assembly
Processor
Removing the processor
Installing the processor
Intrusion switch
Removing intrusion switch
Installing intrusion switch
Memory modules
Removing memory module
Installing memory module
VGA Daughterboard
Removing the VGA daughter board
Installing the VGA daughter board
SD card
Removing SD card reader
Installing SD card reader
Power supply unit
Removing power supply unit — PSU
Installing power supply unit — PSU
Power switch
Removing power switch
Installing power switch
Speaker
Removing speaker
Installing speaker
System board
Removing the system board
Installing the system board
System board layout
Technology and components
Systems management features
In-Band Systems Management – Dell Client Command Suite
Out-of-Band Systems Management – DASH
AMD APUs, AMD Ryzen CPUs and APUs
AMD PT B350
AMD Radeon R7 M450
AMD Radeon R5 M430
USB features
DDR4
Active State Power Management
System setup
Boot menu
System Setup options
Updating the BIOS in Windows
Updating BIOS on systems with BitLocker enabled
Updating your system BIOS using a USB flash drive
Updating the Dell BIOS in Linux and Ubuntu environments
Flashing the BIOS from the F12 One-Time boot menu
Specifications
Troubleshooting
Diagnostic and Power LED codes
Enhanced Pre-Boot System Assessment — ePSA diagnostics
Getting help
Contacting Dell
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Installing coin cell battery
Hold the coin cell battery with the "+" sign facing up and slide it under the securing tabs at the positive side of the connector.
Press the battery into the connector until it locks into place.
Install the:
expansion card
cooling shroud
cover
Follow the procedure in
After working inside your computer
.
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