September 12, 20169 yr Hello, all works fine with the gigabyte MB. only the second pcie works with max x4 lanes... so i buy the asus mb. the mainboard works in x8 x8 mode... the first vm with the pcie graphicscard in the first pcie slot works perfect. when i try to boot the second vm with the second graphicscard in the second pcie slot. i become a error message that the graphicscard already in use! when i try to start the second vm first. it works. but when i try to start the first vm i becom that error message that teh grapgicscard already in use... is that the asus vt-d problem? all bios options checked... no plan whts the problem. please help me many thanks matthias
September 13, 20169 yr Author i found a solution Enable PCIe ACS Override: yes works with the asus mfg
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