Nonetheless the 6 pin pci express power cable officially provides only 75 watts.
Pcie power cable 8 pin voltage.
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.
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The only difference is the two extra grounds.
The pci express 2 0 specification released in january 2007 added an 8 pin pci express power cable.
This connector is used to provide extra 12 volt power to pci express expansion cards.
The extra 4 pins doubled the current capacity of the 12 volt rail so that one is easy to overload when only using a 20 pin main power cable.
Many video cards draw significantly more than 75 watts provided by the motherboard slot so the 6 pin pci express power cable was created.
Many pci express video cards which have the 6 pin or 8 pin pci express power cable still draw a substantial portion of their 12 volt load through the pci express slot.
It is not used by the power supply for remote voltage sensing to compensate for voltage drop over the wiring.
Sense pins are connected to ground at power supply or adapter cable.
A graphics card with one 8 pin power connector can get maximum of 225w of power 75w from pci express x16 slot and 150w.
This is an 8 pin version introduced with the pci express 2 0 specification released in january 2007.
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8 pin pci express pcie power cable connector.
However the 8 pin is designed to supply up to 150w of power the 6 pin only 75w.
This allows the pcie card to detect if a supply cable is connected or not and whether a 6 pin supply is connected to 8 pin socket to indicate less power is available.
I upgraded from my x800gto which had it s own special wire connection to a 9600gt.
Graphics card 6 pin and 8 pin connectors explained.
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Pci e power cable 8 pin vs 6 pin you are correct.
As the title asks.
