Hi. I''m newbie with Xen and event with linux, but almost 2 weeks i spend on installation both on my box (thanks to Zhang Enming for his tutorials) and finally i did it. VGA passthrough is possible on P8H67 even if in bios isn''t option to turn on virtualisation. * Hardware: - CPU: i5 2400 - GTX 560 DirectCUII Top - drivers 275.50 - P8H67 with bios 3603 - 4GB ram :( *Software: - Ubuntu 12.04 - Dom0 kernel - 3.3-rc7 - DomU - windows xp sp3 - x86 (HVM pciback) - Xen 4.2-rc4 with patch from David Gis *Functionality - Asus P8H67 + Asus GTX560OC = VGA passthrough *Comments In this moment i don''t know that patch from David Gis is needed but i used it. Dom0 , DomU Windows XP sp3. I''m newbie but i will try to answer for questions about my configuration. Any suggestions will be appreciated.