Some guys over at HKEPC have successfully cracked crossfire and they successfully ran two Ati cards without the need for a Crossfire Edition Card also they successfully ran x700 and x300 cards together in crossfire mode.
They successfully did it after a month by reverse engineering the VGA Bios and Drivers. This shows that the Composition Engine isn't needed for Crossfire to work.
Here are some results:
3DGuru said:The folks at HKEPC have successfully deciphered how the whole ATI Crossfire perception actually works. As a result, they are able to run two slaves cards in Crossfire without the need for the Crossfire edition master card.
The remarkable thing though has to be that they have done that one X850, X700 and X300SE HM all worked on Crossfire!
They successfully did it after a month by reverse engineering the VGA Bios and Drivers. This shows that the Composition Engine isn't needed for Crossfire to work.
Here are some results:
name='3DGuru said:http://www.guru3d.com/admin/imageview.php?image=5273[/IMG'] [/quote]
Source: [URL=http://www.guru3d.com/newsitem.php?id=2832]Guru3D[/URL]
Link to the article @ [URL=http://www.hkepc.com/hwdb/atixfcracked-1.htm]HKEPC[/URL]
Note this needs to be translated if anybody succefuly translates it pls post ;)
EDIT: There isn't a direct link for the image. Sry