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Dual GPU's Not booting

Ryan Thomas

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Hi Guys 
Wonder if you can help

I have a X79-UP4, 1000w PSU, 4930k, and two XFX RX580's, 
both cards work in all slots individually, Mojave works with 1 card perfectly and in Windows 10 works with both, Luxmark score of 29k... in windows.
So both cards work, all the slots work. Hack works with 1 card , Windows works with both.


BUT!! I cannot get them to work together on the hack side, kernel panics ect..., am I missing a something simple?

Seems to hang around PCI Config Begin, tried all the usual boot flags npci 0x2000 & 0x3000, different System definitions, can't get it to boot.






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