Quick question, if I plan on using IOMMU for running a Windows 10 gamer, and I want to pass the discrete GPU will it just work, or do I need a second card? If a single card works, what happens if the vm is set to auto-start, will it post normal, take me to the Linux login then just turn to Windows when the VM is fully running?

 

Thanks,

Tom

Quick question, if I plan on using IOMMU for running a Windows 10 gamer, and I want to pass the discrete GPU will it just work, or do I need a second card? If a single card works, what happens if the vm is set to auto-start, will it post normal, take me to the Linux login then just turn to Windows when the VM is fully running?

 

Thanks,

Tom

You need a dedicated card (either the integrated or a cheapie discrete) for unRaid, in addition to the one you're going to passthrough.

Ok great thanks!

 

Tom

You need a dedicated card (either the integrated or a cheapie discrete) for unRaid, in addition to the one you're going to passthrough.

Not entirely true, even though some cards can be picky.

Since I have no integrated graphics and no want to waste a slot, I have unRAID/POST use my primary 16X card, after loading finishes and the console is displayed, that GPU gets repurposed and taken away from the console into a Win 10 VM.

At 1st I was concerned with this being a problem (as I didn't want to waste a Pcie slot for unRAID console), however this has not been the case. With 4 dedicated GPU's I'm able to run all 4 VM's with a GPU assigned without any issues with UnRAID and the theft of its console output.

 

So with that said, you may want to try before you buy.

I know some cards won't work if they are the only card, for whatever reasons.

For me since my VM's are SeaBIOS I lose the console output as soon as a VM is started, so it would be a major waste at that point (and that'd be the only reason I'd be ambitious enough to convert my VM's to OVMF).