http://www.gigabyte.com.tw/Support/Motherboard/Manual_DownloadFile.aspx?FileType=Manual&FileID=18237That is the manual, not sure the exact page, was only 10-20 pages in on the section that talked about the internal and external connections. On the DVI-D conneciton there is a note, and if you scroll down to the bottom of that page, it tells you that the DVI-D port does not support connecting a D-Sub via an adapter.