Ah sweet, it was just a guess I have no experience with it just know vaguely how they are set up. Glad it worked.
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Educated guesses is what we do best.
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Really cool experiment.
Now I just need some Vega II’s to test too 
Updated 3-11-19
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My eyes must be betraying me, Becose i’m seing quadro 
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It seems to be no good for crossfire because the option disappears after more than 2 cards are installed. Unless someone knows a way around this???
I have never know there to be a limit like that before, I wonder why it has changed now.
Crossfire the crossfires!
Anyways this is pretty bad ass and possibly a reason of the shortage but if i still manage to get mine this week i’ll forgive you.
My guess would be userbase that has >2 cards and bandwidth limitations of PCIe Gen 3.
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on some high end 990fx boards you can run 4way crossfire just fine. old PCIe Gen 3 . given that the fx line was repurposed server chips and had all the lanes. on my crosshair v i can run 8x8x8x8 or 16x16x4x4 or 16x8x8x8
yes you would have to run threadripper to do this now but 
I have the asus z10pe-d8 ws motherboard with dual E5-2673v3 xeons installed. Is this capable?
probably not as easily as the lanes are split between the two cpus.
having a host and a guest vm with a pair of crossfired gpus is probably the better option as you can pin cores from one cpu to each os and pair of cards. to be honest i have no clue about intel and there chip set and lane setup. i went with AMD and have only used AMD systems since the dual core Athlon days .
I am 99% certain FX is PCIe Gen2, and the GPUs from 2014 were not nearly as powerful as modern cards.
Apart from that, there has to be a reason for AMD to push forward to PCIe Gen4. I bet Vii has something to do with it.
there were a few revisions with 3.0 but not many.
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Late to the party but yeah my Radeon 7 came in day before yesterday. No SR-IOV. Amdpls I just need like 5 seats
As cool as that would be, if you want that for gaming a Radeon V2 is not gonna do much divided up 5 ways…
If all it is doing is a bunch if desktops and one game fine but any more than, or even just, 2 separate games and it is gonna have to be old light games or super slow modern games.
Indie games exist, or party games that only require a browser (Use your words, Quiplash, etc).
SR-IOV support would make the Vii the cheapest SR-IOV card in existance.
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Soooo now I am wondering, how are you powering these?
2x 750 watt and 1x 1600 watt PSUs
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