Hello.

I wanted to create a "One Computer, 2 Windows" computer with 2 different Graphics cards.

First to my Components:

 

i7 4790k

Asus Maximus VI Gene

2x8 GB Corsair Dominator 2400

Gigabyte 1070 G1 Gaming

KFA2 gtx 960 2g OC

powered with Dark power pro 11 850w + platinum

 

i'm using the latest unRAID software and a ISO of Windows 7 Home Premium 64 bit.

 

I cant run both machines at the same time.

 

"Execution Error

 

Requested operation is not valid: PCI device 0000:01:00.0 is in use by driver QEMU, domain Windows 7"

 

I'm running the latest bios drivers and done all the stuff via toturial.

 

 

I found my graphics cards here:

 

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [10de:1b81] (rev a1)

01:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:10f0] (rev a1)

02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM206 [GeForce GTX 960] [10de:1401] (rev a1)

02:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:0fba] (rev a1)

 

and they're in the following group:

 

/sys/kernel/iommu_groups/1/devices/0000:01:00.0

/sys/kernel/iommu_groups/1/devices/0000:01:00.1

/sys/kernel/iommu_groups/1/devices/0000:02:00.0

/sys/kernel/iommu_groups/1/devices/0000:02:00.1

 

i think that's something causing my problem, but i cant find a fix for it. I'm googleing since a few hours, and now I am here.

 

I hope you guys can give me some tips

 

Thank you

In all likelihood, both of your video card ports are associated with the PCIe root hub, and without a Core Extreme or Xeon processor, you won't be able to separate them from the root controller(s) they are associated with now.

 

Short of buying a new motherboard and processor, and possibly memory (Xeon will be using ECC RAM), there's not much you can do.

In all likelihood, both of your video card ports are associated with the PCIe root hub, and without a Core Extreme or Xeon processor, you won't be able to separate them from the root controller(s) they are associated with now.

 

Short of buying a new motherboard and processor, and possibly memory (Xeon will be using ECC RAM), there's not much you can do.

Yes there is.

He can enable the ACS override in settings > VM manager and that will most likely fix the problem.

 

Assuming it works with his configuration. It certainly didn't with mine, but my machine has a lowly i7 3770, a whole generation older than Haswell.

Assuming it works with his configuration. It certainly didn't with mine, but my machine has a lowly i7 3770, a whole generation older than Haswell.

Assuming it doesn't work and not mentioning the ACS override option and telling him he need to buy a Xeon or extreme CPU and a new motherboard is a little extreme 

True. They should try ACS override anyway, and if it works, it'll be his solution. The hardware solution was not really a solution, since it implies expensive purchases, which are a crazy thing to do if you can live without the functionality and don't really have money to burn.

 

I just didn't want them to get their hopes up. But at least it's something that can be reversed easily in the event that it doesn't work.