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Dual RX580, X79 not booting!

Joined
Nov 3, 2011
Messages
63
Motherboard
Gigabyte X79-UP4
CPU
i7-4930K
Graphics
2x RX 580
Mac
Mac Pro
Classic Mac
Color Classic
Mobile Phone
iOS
Hi Guys
Wonder if you can help

I have a X79-UP4, 1000w PSU, and two XFX RX580's, there are two PCI 16x slots on this board,
and both cards work in both slots individually. also tried the 8x slots with the same result.
So both cards work, all the slots work.

BUT!! I cannot get them to work together, kernel panics ect..., am I missing a something simple?
 
Joined
Nov 3, 2011
Messages
63
Motherboard
Gigabyte X79-UP4
CPU
i7-4930K
Graphics
2x RX 580
Mac
Mac Pro
Classic Mac
Color Classic
Mobile Phone
iOS
So I got the 2nd card working in Windows, but still no luck on the Hack side
 
Joined
Nov 3, 2011
Messages
63
Motherboard
Gigabyte X79-UP4
CPU
i7-4930K
Graphics
2x RX 580
Mac
Mac Pro
Classic Mac
Color Classic
Mobile Phone
iOS
Working, Deleted my DSDT/SSDT, System Rocks DSDT Free
 
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