Originally posted by: HopJokey
...the extra RAID controller...
I've been looking at both boards as well and I believe they offer the same 6 x SATA connectors via the ICH9R and 2 x eSATA via the JMicron controller. I see no mention of an extra RAID controller on the ABIT board.
I'm not sure about fan control on the ASUS board tho, the OP would have to hit the manual.
There are some differences on the rear connectors in terms of what's available. Look at the pics on Newegg.
I have heard some reports that the placement of the x16 PCI-Express slot on the ASUS board can be problematic when using "huge" (long) video cards. Apparently the card can interfere with some of the SATA connectors. There seems to be a little more room on the ABIT board.