P7 Power Supply Connector

The picture is an example of this connector.

P7 power supply connector.

Plugging an atx power supply into ac power while the p1 connector is not connected to a load will destroy the power supply. All standard pc power supplies that use the p8 and p9 connectors have them installed end to end so that the two black wires ground connections on both power cables are next to each other. Dc power connector p7 there are only 2 cables that connect to the hard drive power cable from the power supply and the data cable that connects from the drive to the motherboard. Basics on psu cables and where they plug in inside the computer.

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Alternatively referred to as the at style connector p8 connector and p9 connector the p8 and p9 are ibm power connectors. Eyeboot 24 pin to 8 pin power supply atx psu adapter cable for dell motherboards. Free shipping on your first order shipped by amazon. With the introduction of atx motherboards and power supplies were replaced by the atx style connector.

Standard atx power supplies typically have the main power connector p1 additional 12v connectors as well as peripheral floppy drive serial ata and pci express receptacles which we will describe below. They connect the power supply to the motherboard on at baby at and lpx motherboards. These supplies feature two main power connectors p8 and p9 each with 6 pins that attach the power supply to the motherboard. The original atx systems had 20 pin main connector p1.

Depending on the power supply the connector may contain one 12 volt rail in all 8 pins or two 12 volt rails taking up 4 pins apiece. For the operation basics of smps psu see our power supply tutorial. The 8 pin 12 volt cable is polarized so it can only be plugged into the 8 pin motherboard connector correctly.