Originally Posted by bigtoe
As far as I know both Sapphire and DFI are using the ATI SB. Regarding bios support this will probably come from ATI for those who follow the reference designs, those who deviate will probably work on their own bios.
Oskar has worked on the DFI crossfire, so expect something special from DFI, its out real soon and i should with luck have a preview board and i will post on Xtreme.
1T overclocks on grouper are a little less than the DFI NF4, some will see 300+ 1T some will not. I do know 2T is almost as fast with the tweaks we have worked on and i have benched 320+fsb this way. The board is REALLY fast with VX or good BH die dimms and 2-2-2 all 1T. Developement still continues though, so don't panick because you can not do 310fsb, I just run 285 2.5-3-3- and play with rartio's etc and im still getting 3400+ in memtest86 at high clocks ;)