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Manuals
OptiPlex 3070 Tower Service Manual
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Notes, cautions, and warnings
Working on your computer
Safety instructions
Before working inside your computer
Safety precautions
Electrostatic discharge—ESD protection
ESD field service kit
Transporting sensitive components
After working inside your computer
Technology and components
DDR4
USB features
USB Type-C
Advantages of DisplayPort over USB Type-C
HDMI 2.0
Intel Optane memory
Enabling Intel Optane memory
Disabling Intel Optane memory
Major components of your system
Removing and installing components
Disassembly and reassembly
Side cover
Removing side cover
Installing side cover
Bezel
Removing front bezel
Installing front bezel
Front panel door
Opening front panel door
Closing front panel door
Hard drive assembly—3.5-inch and 2.5-inch
Removing 3.5–inch hard drive
Installing 3.5–inch hard drive
Removing the 2.5–inch hard drive assembly
Removing the 2.5–inch drive from the drive bracket
Installing the 2.5–inch hard drive into the hard drive bracket
Installing the 2.5-inch drive assembly
Optical drive
Removing optical drive
Installing optical drive
M.2 PCIe SSD
Removing M.2 SSD
Installing M.2 SSD
SD card reader
Removing SD card reader
Installing SD card reader
Memory module
Removing memory module
Installing memory module
Expansion card
Removing PCIe expansion card
Installing PCIe expansion card
Optional VGA module
Removing optional VGA module
Installing optional VGA module
Power supply unit
Removing power supply unit or PSU
Installing power supply unit or PSU
Intrusion switch
Removing intrusion switch
Installing intrusion switch
Power button
Removing power button
Installing power button
Speaker
Removing speaker
Installing speaker
Coin cell battery
Removing coin cell battery
Installing the coin cell battery
Heat sink fan
Removing heat sink fan
Installing heatsink fan
Heatsink assembly
Removing heatsink assembly
Installing heatsink assembly
Processor
Removing processor
Installing processor
System fan
Removing system fan
Installing system fan
System board
Removing system board
Installing the system board
Troubleshooting
Dell SupportAssist Pre-boot System Performance Check diagnostics
Running the SupportAssist Pre-Boot System Performance Check
Diagnostics
Diagnostic error messages
System error messages
Recovering the operating system
Backup media and recovery options
WiFi power cycle
Getting help
Contacting Dell
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Installing the 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 [1].
Press the battery into the connector until it locks into place [2].
Close the
front panel door
.
Install the:
Front bezel
Side cover
Follow the procedure in
After working inside your computer
.
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