1 Reply Latest reply on Nov 25, 2016 9:33 PM by wfricker

    Best way to configure 5x1p + 1 on 2 Saph Rad 390x using Eyefinity


      Hi All,

      I am working with a friend to build a really awesome pc for his 6 monitor setup.  It needs to be able to run a 5x1p group plus one additional monitor at the highest resolution possible (4k would be nice) I am getting a little dizzy reading through hundreds of sites to find a clear answer with specific details and would really appreciate some help.  The pc build includes:

      Intel Core i7-5960X 3.0GHz 8-Core Processor


      Corsair Dominator Platinum 64GB (4 x 16GB) DDR4-3200 Memory



      I am looking at purchasing two of these video cards:

      SAPPHIRE NITRO Radeon R9 390X DirectX 12 100381NTOCL 8GB 512-Bit GDDR5 PCI Express 3.0 OC Version w/ backplate (UEFI) Video Card



      Can you recommend the best way to set up the cables (which ports or hubs to use) and the best way to configure the settings)  I am flexible about the cards if anyone can recommend other cards that would be much better, but I would prefer not to get into a dizzying discussion about the which cards should be used)  Thanks for your help - W

        • Re: Best way to configure 5x1p + 1 on 2 Saph Rad 390x using Eyefinity

          The problem I have run into is that as I understand it, Eyefinity requires all of the monitors in a group to be connected to the same card. The only way to connect more than three monitors to the R9 390x would be to use a DisplayPort hub. The problem is the  bandwidth limitations  that a Multi Stream transport is capable of transmitting is as follows:


          > RESOLUTION...................MAXIMUM # of DISPLAYS

          > 1680 x 1050 (WSXGA)........5

          > 1920 x 1080 (1080p)..........4

          > 2560 x 1600 (WQXGA).......2

          > 4k or 2k...............................1


          > What am I missing? Even with two high end R9 390x video cards in crossfire (or four for that matter), I would be unable to use Eyefinity on 6 panels at even 1080p, let alone 2k or 4k? If I forget about Eyefinity, I can connect six panels to the two cards without issue, but will have to give up using all the displays as a single large eyefinity screen.