>> This thread has examples of PCIe x1-to-x16 risers and PCIe x4-to-x16 cables
>> that seem to work well with PCIe x16 graphics cards in the X5000 standard case.

> I have been using the X4 to X16 cable now for the graphics cards
> as you can now see in the second page of the thread you refer to.
> https://forum.hyperion-entertainment.com/viewtopic.php?p=55237#p55237

Yes, that's what I referred to in my comment that I wrote here some hours after you posted those pictures to the Hyperion forum. In fact, the second page was already complete by then ;-)