According to SoF in this thread.......
http://www.xtremesystems.org/forums/...d.php?t=213690 (see posts 23 & 24), ACC doesn't do anything for Phen2. I read somewhere (another forum I think.....didn't b/m it) that Phen2 has ACC 'built in', whatever that means. Dunno, however SoF has been tweaking these things for several months so I'd tend to believe him when he states ACC doesn't matter. That being said, SB750 has other advantages over SB600 in SATA and USB performance. Enjoy your new DFI!:D
Found the link.it was right here...Doh!....
http://www.xtremesystems.org/forums/...201154&page=38.....post #947.:D