I7 3820 Steppings

[rjos]

I read recently that the i7 CPUs did not have functional VT-d until the recent C2 stepping.

I am interested in the 3820 which is spec'd for VT-d. The Intel page on 3820 says it is stepping M1.

How can I know if this stepping is has functional VT-d?

ray

 

[Zevs]

I bought a 3820 for Gigabyte GA-X79-UD5, and VT-d can be enabled in the bios. I'm not 100% sure how to make it fully work with VMware, but it seems to work definitely faster than it was on q6600, in all aspects, including I/O.

 

[rjos]

Zevs,

That sounds great that you have found much improved performance. Can you report your CPU stepping and have you tried to pass through video card to a VM?

 

[Zevs]

Zevs,

That sounds great that you have found much improved performance. Can you report your CPU stepping and have you tried to pass through video card to a VM?

It's marking is SR0LD, which is M1 I believe. M0 afaik are engineering samples only. I didn't try to pass it yet because I don't know how to do it. My old VMs still have their virtual adapters. I've read some stuff about how to enable VT-d on VMware ESX, but I have VMware workstation.