How to install a 6 pin pcie cable to your power supply

Written by ruri ranbe
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How to install a 6 pin pcie cable to your power supply
Most ATX power supplies include six-pin and eight-pin PCI Express power cables. (power supply image by robert mobley from Fotolia.com)

ATX power supplies originally focused on supplying voltage rails of +3.3 and +5 volts. Some PCI Express cards, however, require multiple +12 volts of current. Following the development of PCI Express technology, ATX PSUs were revised to include additional +12 volt rails to supply enough power to the expansion slots.

Legacy power supplies do not include the six-pin PCIE cable required to power high-end PCI Express devices. Many video cards need a six-pin PCIE cable in order to run. If your power supply does not have a six-pin PCIE power cable, you can use an adaptor to convert two four-pin peripheral connectors to a six-pin power cable.

Skill level:
Easy

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Instructions

  1. 1

    Shut down the computer. Disconnect the power cable from the rear of the system. Remove any other cables connected to the device panel.

  2. 2

    Loosen the screws securing the cover to the computer's case. Take caution not to remove the screws securing the power supply to the system.

  3. 3

    Lift the cover off of the case and touch the chassis to ground yourself. Locate the power supply, then find two available four-pin peripheral connectors coming from the PSU.

  4. 4

    Remove the PCI Express-to-Molex adaptor from its packaging. Attach the two Molex connectors to the power supply's four-pin peripheral cables.

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