Intel says it DOES support VT-d, at
http://www.intel.com/support/motherboards/desktop/sb/CS-030922.htm
(see last table on that page).
Intel says it DOESN'T support VT-d, at
http://ark.intel.com/compare/70898,70903,69045
Trying to build a configuration with totally non-kludged, orthodox, VT-d end-to-end support is hairy enough as it is, which is a major reason for leaning toward Intel boards in the first place.
How can a customer know, is the list on the CS-030922 page 100.0000 percent reliable and authoritative, or not?