- Notes, cautions, and warnings
- Working on Your Computer
- Removing and
Installing Components
- Recommended Tools
- System Overview
- Removing the Cover
- Installing the Cover
- Removing the Intrusion Switch
- Installing the Intrusion Switch
- Removing the Front Bezel
- Installing the Front Bezel
- Removing The Expansion Card
- Installing the Expansion Card
- Memory Module Guidelines
- Removing the Memory
- Installing the Memory
- Removing the Coin-Cell Battery
- Installing the Coin-Cell Battery
- Removing the Hard Drive
- Installing the Hard Drive
- Removing the Optical Drive
- Installing the Optical Drive
- Removing the Speaker
- Installing the Speaker
- Removing the Power Supply
- Installing the Power Supply
- Removing the Heatsink Assembly
- Installing the Heatsink Assembly
- Removing the Processor
- Installing the Processor
- Removing the System Fan
- Installing the System Fan
- Removing the Power Switch
- Installing the Power Switch
- Removing the I/O Panel
- Installing the I/O Panel
- System Board Components
- Removing the System Board
- Installing the System Board
- System Setup
- Diagnostics
- Troubleshooting Your Computer
- Technical Specifications
- Contacting Dell
Dell OptiPlex 3020–Mini Tower Owner's Manual
Installing the Power Supply
- Place the power supply in the chassis and slide towards the back of the system to secure it.
- Tighten the screws to secure the power supply to the back of the computer.
- Connect the 4-pin and 8-pin power cables to the system board.
- Thread the power cables through the chassis clips.
- Install the cover.
- Follow the procedures in After Working Inside Your Computer.
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