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6+2 pci power, +2 matter which plug

digitalcoffee
By digitalcoffee
in Graphics Cards
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I just upgraded to a gpu requiring 2x 8 pin  from 2x 6pin and I cannot tell which +2 wires go to which pci power cable without dissasembly and following the cables.   Does it matter?  Thx!

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2 minutes ago, digitalcoffee said:

I just upgraded to a gpu requiring 2x 8 pin  from 2x 6pin and I cannot tell which +2 wires go to which pci power cable without dissasembly and following the cables.   Does it matter?  Thx!

Do you mean 6+2 pin ? Like this one in picture.  If you have 2 cables with 6+2pin then you can plug both into the 2x8pin on the GPU.
 

image.jpeg

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yes, however, i have cablemod cables and the +2 wires run seperately all the way back to the modular psu.  so I am unsure which +2 belongs to which 8 pin pci power connection.  

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yes, however, i have cablemod cables and the +2 wires run seperately all the way back to the modular psu.  so I am unsure which +2 belongs to which 8 pin pci power connection.  psu end connected with 8pins but the 2 are detatched from the 6pin connector at gpu end.

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3 minutes ago, digitalcoffee said:

yes, however, i have cablemod cables and the +2 wires run seperately all the way back to the modular psu.  so I am unsure which +2 belongs to which 8 pin pci power connection.  psu end connected with 8pins but the 2 are detatched from the 6pin connector at gpu end.

I understand now.  I can't say for sure if it matters or not but I would personaly try to figure out which +2pin belongs to the 6pin just to be sure.  It might draw different wattage from each connector, I doubt the draw is equal between each 8pin all the time so In my mind it would be best if the +2 that belongs to the +6 should be together.

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Those are grounds, they should be shared, connected to the chassis, should not make a difference at all.  They probably terminate on adjacent PCB pads inside the PSU.

This post has been ninja-edited while you weren't looking.

 

I'm a used parts bottom feeder.  Your loss is my gain.

 

I like people who tell good RGB jokes.

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The +2 goes on the rightmost contacts on the GPU's connector. In other words the 6 goes to the left

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