Does Intel DX79SI and Intel DX79TO board support VT-D

**Bajrang Pandey** · 12-05-2012

As we know that now a days the virtual machines are taking advantage of the VT-D technology and if we compare the VT-D technology with the VT-X then the gains are more with VT-D technology but then the gain is mostly with the graphics processing units and sound cards in a number of cases, so here I just wanted to ask that, Does Intel DX79SI and Intel DX79TO board support VT-D, I have been checking out for the same but then I have got varying answers so Is there anyone who is quite sure about what I am asking and can clear my doubt?? Any help regarding this will be highly appreciated.

**Kanesteyn** · 12-05-2012

In that case I will like to inform you that VT-d is processor and it is depends on the operating system, as far as I am aware the current 2011 socket processors (i7-3930K, i7-3960X) does not support VT-d but then they just support VT-x, I don’t think that we will be able to see VT-d support if intel continues to follows their normal offerings under the Extreme series but then there are chances that they can come up with a locked 39xx for the socket 2011 which will supports VT-d. I don’t think that they will be coming up with the same soon as well but then we can just expect, time will tell if it will or will not.

**Bajrang Pandey** · 12-05-2012

I have checked out for the current 2011 socket processors and I have found them to be supporting the below technologies:

Intel Virtualization Technology (Intel VT)
Intel Virtualization Technology for Directed I/O (Intel VT-d)
Intel Virtualization Technology Intel Core i7 processor family for the LGA-2011Socket Extensions
Intel 64 Architecture
Intel Streaming SIMD Extensions 4.1 (Intel SSE4.1)
Intel Streaming SIMD Extensions 4.2 (Intel SSE4.2)
Intel Advanced Vector Extensions (Intel AVX)
Intel Hyper-Threading Technology
Execute Disable Bit
Intel Turbo Boost Technology
Enhanced Intel SpeedStep Technology

I also wanted share that the previous processors were having errata affecting VT-d which might have been fixed with the newer processors and/or stepping, as far as the socket 1155 processors are concerned Intel is having Q67 boards with VT-d support but then I don’t think that they are having support for it on x79 boards, so here I just wanted to know that if this is the case or does these boards actually support VT-d or not.

**Vishwa12** · 12-05-2012

I don’t think that Intel DX79SI and Intel DX79TO board supports VT-D as they are not mentioned in the below list, I just wanted to share that the below list is of VT-d Enabled Systems:
VT-d enabled chipsets:

Intel Q35 (desktop / workstation)
Intel Q45 (desktop / workstation)
Intel X58 (desktop / workstation)
Intel 55x0 (server)
Intel 3450 (workstation / server)

Chipsets having VT-d capability:

Intel X38 (desktop / workstation)
Intel X48 (desktop / workstation)
Intel 32x0 (server)
Intel Desktop Boards having VT-d support enabled:
Intel DQ35JO
Intel DQ35MP
Intel DX38BT
Intel DX48BT2
Intel DQ45CB (BIOS 0061 required, previous versions are known to cause problems)
Intel DQ45EK
Intel DX58SO

ASUS Desktop Boards having VT-d support enabled:

ASUS P5E-VM DO (Intel Q35 chipset)
ASUS P6T Deluxe (Intel X58 chipset
ASUS P6T6 WS Revolution (Intel X58 chipset)
ASUS Z8NA-D6 (dual processor nehalem board)

Motherboards based on 32x0 having working VT-d:

Intel server board: S3210SHLX (BIOS >R0044 required.)
Supermicro server mainboard: X8DT3-F

OEM systems having VT-d enabled:

Dell: Optiplex 755, Optiplex 980
HP Compaq: DC7800
Fujitsu-Siemens: Esprimo 5925
Lenovo: ThinkStation E20 and Thinkserver TS200v

**celestiall** · 12-05-2012

These are the Intelt Desktop Boards that support Intel VT and the Intel DX79SI and Intel DX79TO board are mentioned in the below list so I don’t think that they might be supporting VT-D:
Chipset: Desktop Board