Pinout of the PCI-Express Power Connector

[W1zzard]

http://www.techpowerup.com/articles/116/images/pciepower.jpg

Many new PCI-Express video cards use this 6 pin connector as additional source of power, because the PCI-E bus is limited to 150W power draw max.

http://www.techpowerup.com/articles/116/images/pcie.jpg

The middle pin in the bottom row is not connected.

[Unregistered]

The middle pin is certainly connected on both PCIe leads of my Enermax 600W Noisetaker SLI power supply. It has 3 grounds on one side, and 3 +12V's on the other side of the connector.

[CaTalyst.X]

The pin on the connector from the power supply may in fact be connected to +12V, but the pinout of a graphics card PCI-E power connector lists that pin as N/C

-CaT

[peta01]

Can I manualy add power connector to my card? It has not power connector by default, but there are pins for it and newer version have this connector. ASUS X800np
thanks