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What's the right way to hook up a power supply to my computer's parts?

1Answers
OLogan
12/17/2025, 04:43:33 PM

Connecting your power supply unit (PSU) to your computer's components is a crucial step. Here’s how, using a GIGABYTE UD750GM 750W 80 Plus Gold Certified Power Supply as an example:

  1. Open the Case: First, unscrew and remove the side panel of your computer case.
  2. Install the PSU: Locate the PSU bay and secure the power supply within the case.
  3. Connect Motherboard and CPU: Connect the primary motherboard power connector (usually a 20+4 pin) and the CPU power connector (typically a 4+4 pin) to the corresponding sockets on your motherboard.
  4. Connect Other Components: Use the appropriate cables from the PSU to connect to other components:
    • PCI-E: Connect PCI-E (6+2 pin) connectors to your graphics card (if you have one).
    • SATA: Connect SATA power connectors to your solid-state drives (SSDs) or hard disk drives (HDDs).
    • Molex: Connect Molex connectors to any older components that require them, such as fans or certain peripherals. Ensure all connections are firmly and securely plugged in.
  5. Close the Case: Replace the side panel of your case and secure it with the screws.
  6. Power Up: Plug the power cord into the PSU and switch the power supply on. If you encounter any problems, always consult the troubleshooting section of your PSU manual or contact the product's service center.
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