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  • Welcome to Circuit-Tech Helpdesk
  • Getting Started
    • Set Up Windows 11
    • Set up Windows 10
    • πŸ–₯️Connecting Desktop To a Single Monitor
    • πŸ–₯️Connecting Desktop To a Dual Monitor
  • user guide
    • 🌍Connecting To the Internet
    • ⌨️Connecting Wireless Keybaord & Mouse
    • πŸ”ŠConnecting Speakers
    • πŸ“·Connecting a Web Camera
    • πŸ‘©β€πŸ’»Getting to know your Windows 10
    • ⬇️Download any updates
    • πŸ’½Download some essential programs
    • 😈Why should I run Anti-Virus Software
    • πŸ’ΎBackup Your Computer
  • Troubleshooting
    • Windows 10
    • internet Connection
    • LCD Monitors
    • Dell Computers
      • Optippex 390 / 790 / 990
        • Small Form Factor (SFF)
          • Setting up the Bios
          • Upgrading Memory
          • Upgrading Hard Drive
          • Replacing Power Supply
          • Replacing DVD
          • Jumper " Error" message
          • Boot Not Found " Error" message
          • No Sound
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  1. Troubleshooting
  2. Dell Computers
  3. Optippex 390 / 790 / 990
  4. Small Form Factor (SFF)

Replacing Power Supply

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Last updated 2 years ago