Pcie 6 pin wiring diagram. Many video cards draw significantly more than 75 watts provided by the motherboard slot so the 6 pin pci express power cable was created. The cable i have does have 6 cables 3 black 3 yellow. Graphics card 6 pin and 8 pin connectors explained. Most modern gpus require an external power supply to work as a standard pcie port only provides 150w of power.
You can pick one of these up for around 5 7 eur550 from any decent computer store. So i just bought a gigabyte r9 280x rev2 and a 6 mini pcie 8 pin cable from amazon. These high power cards draw most of their power from the 12 volt rail so this cable provides only 12 volts. This is an 8 pin version introduced with the pci express 20 specification released in january 2007.
6 pin power connector can supply 75 watt to the graphics card while 8 pin power connector can deliver maximum of 150w to your graphics card. Buy adapters or power converter cables for 6 pin pci e and 8 pin pci e connectors. This connector is used to provide extra 12 volt power to pci express expansion cards. However in the diagramblueprint it seems that the connector p2 doesnt have anything connected on pin 2 only 13456.
This connector is used to provide extra 12 volt power to pci express expansion cards. Hp 6 pin proprietary power supply video card upgrade adapter elitedesk gpu. A graphics card with one 8 pin power connector can get maximum of 225w of power 75w from pci express x16 slot and 150w. I have attached the diagram below.
I tried to follow the second picture and look at the third picture. When hooking everything up the fans dont spend and the screen doesnt come on in windows or mac os can remote in though.