Use the drivers for the Intel Matrix Storage Manager and be sure to get the latest ones from the Intel website at http://www.intel.com/support/chipsets/imsm/sb/CS-022648.htm#4
The drivers on the ASUS supplied CD are all old and you should really get the latest ones. Some of the ASUS supplied drivers have problems and won't work properly depending on your hardware. I think the lan driver was particularly bad and in need of the latest version.
The Intel MSM is a very nice piece of software that includes RAID monitoring to detect potential problems including early warning on disk failure. You want to have the latest and greatest copy of that for sure.