I am having a problem with my IOMMU. When I check it says that it is disabled. When I check in the bios VT-d shows enabled. Everything I can find for my hard says that I should be able to use IOMMU. I am running GA-Z87X-UD4H with a I7-4770K. I am wondering if there is something I need to do to turn on this function. I want to be able to pass through a NIC so I can run PFsense in a VM.

10 minutes ago, PaulWilson859 said:

I am running GA-Z87X-UD4H with a I7-4770K. I am wondering if there is something I need to do to turn on this function.

Replace the CPU with a model that has VT-d. Yours doesn't.

Thank You. What i read must have been wrong. Do you have any suggestions that would work with the motherboard I already have.

The i7-4770 has VT-d. It's just the k version that's crippled.

I did some more reading and I read that. That does not make since. The cheaper part supports a feature that the more expensive part does not. 

8 hours ago, PaulWilson859 said:

The cheaper part supports a feature that the more expensive part does not.

Supply and demand. More people would pay more money for an overclockable gaming processor than an obscure virtualization tweak. Plus, fewer parts off the assembly line pass the overclocking tests, so less supply = higher cost.

 

Purely a marketing thing.