Re: [Xen-users] any VT-d enabled mobos for Xeon 5000 series out there ?

["sven waeyenbergh" <sven.waeyenbergh@xxxxxxxxx>]

Thanx for the info Daniel

it seems that VT-d is enabled on all intel 5400 chipsets,
in any case you can check that in the manual for all the Tyan 5400 boards (always in 3.3.3.1 section) and asus boards.
very weird i cannot find any confirmation on the intel boards, but tyan is always my first pick

thanks a lot.
ban

On Thu, Apr 24, 2008 at 10:22 AM, Daniel Kao <dkao@xxxxxxxxxxxx> wrote:

Ban,

As far as server chipsets are concerned, Intel has stated the Xeon 5400 (DP) or Xeon 3200/3210 (UP) are VT-d capable.  However, it's up to the OEMs in enabling VT-d in the BIOS.  Please note that from what I've seen, it will explicitly state "VT-d" in the BIOS for enabling or disabling on top of anything that refers to "Intel Virtualization" or "Vanderpool".

I've seen multiple 5400-based chipsets support VT-d, but have yet to come across a Xeon 3200/3210 chipset that an OEM has implemented and enabled VT-d functionality.

The Tyan Tempest i5400XT (S5396) is a good example of when the chipset/BIOS supports VT-d.  You'll see it mentioned in the manual:

http://www.tyan.com/manuals/m_s5396_120.pdf

Page 47 of the PDF, section 3.3.3.1, "Intel VT for Directed I/O (VT-d)" shows a great example of how it should look.

I know the guys over at the Microsoft Windows 2008 forums playing around with Hyper-V have been delving into VT-d testing too.  It's been hit-or-miss for them also with VT-d enabled combinations.  (They've been having issues with ASUS Q35-based boards with VT-d).

But alas, an answer to your question, there are no S5000V-based chipset motherboards that have VT-d.  The 5400's should.

Good luck!

Cheers,
Daniel

sven waeyenbergh wrote:

Hi list,

i have seen a lot of questions about VT-d on recent intel mobos.
however, it seems that all tests are done on the newer socket 775-based xeon's or core2's, and not the 5000 series (socket 771 based).

i was planning on getting a intel S5000V chipset, but found out that it does not support VT-d.
Can anyone confirm a mobo that has this enabled and also has 2x LGA771 sockets ?

Thanks,
Ban

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-- 
Cheers,
Daniel Kao, Übermind
Seattle, WA
dkao@xxxxxxxxxxxx

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