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Is it ok to power a GPU using dual 6+2 pin off one cable?

Discussion in 'Power Supplies' started by Jon20, Dec 6, 2018 at 4:26 PM.

  1. Jon20

    Hitman

    Joined: Feb 12, 2008

    Posts: 951

    Location: Newport, Shropshire

    I’ve just purchased a EVGA 2070 XC. My PSU is a Seasonic 550w Focus+ Platinum. The GPU requires a 8 pin and a 6 pin. I haven’t been using a GPU that has required extra power recently so had a look at what cables there were. There’s only the one PCIe cable that has dual 6+2 pin connectors. Is it ok to just use the one cable for both connections?
     
  2. pastymuncher

    Man of Honour

    Joined: Jul 12, 2005

    Posts: 16,885

    Location: Aberlour, NE Scotland

    It will be fine.
     
  3. Acme

    Caporegime

    Joined: Jul 29, 2011

    Posts: 28,417

    Location: Acme's chair

    It will be fine but I tend to use one per cable if I can, just cos it makes me feel better. Lol
     
  4. Jon20

    Hitman

    Joined: Feb 12, 2008

    Posts: 951

    Location: Newport, Shropshire

    Thanks both. I normally use a cable per connection so wasn’t entirely sure if it would be ok.
     
  5. andy_mk3

    Sgarrista

    Joined: Oct 5, 2009

    Posts: 7,588

    Location: Lincolnshire

    My EVGA 1080 won't boot off one cable, I have to use two.
     
  6. Jon20

    Hitman

    Joined: Feb 12, 2008

    Posts: 951

    Location: Newport, Shropshire

    Do the cables have a standard wiring configuration? It’s not really something I’ve ever looked in to. I think I have another Seasonic PSU in the spares box but didn’t want to try one of the cables for that, if they don’t. Just in case it doesn’t boot.
     
  7. Radox-0

    Wise Guy

    Joined: Mar 9, 2015

    Posts: 2,263

    Location: Earth

    I am powering my 1080Ti's off a single branching cable to each GPU with 0 issues (HXi 1200 does not have enough spare PCIe for 3 GPU's) and have been for a few months while my AX1600i cables get sleeved.

    I know some people have seen fractionally better overclock's apparently with a pair of cables to each GPU but no real big difference.
     
  8. Jon20

    Hitman

    Joined: Feb 12, 2008

    Posts: 951

    Location: Newport, Shropshire

    Just to add, I sent a email to Seasonic not long after posting this thread, just wondering if they would be able to supply another PCIe cable. Had a reply back, seems as though they are updating the cable set that comes with the Focus Plus range and are going to be including 2 PCIe cables instead of the 1 that splits in to two 6+2 pin. Have just had to send a proof of purchase and address and they'll send one out to me. Great customer service.
     
  9. Seasonic Rep

    Associate

    Joined: Nov 12, 2018

    Posts: 4

    Location: Taiwan

    You are welcome :)
     
  10. Acme

    Caporegime

    Joined: Jul 29, 2011

    Posts: 28,417

    Location: Acme's chair

    Awesome stuff! :)