Dear,Damian.
Sorry.
There is no Raid Modules in that URL .
There is Raid Modules list in this PDF.
http://download.intel.com/support/motherboards/server/sb/g83982001_s1200bt_config_guide_28.pdf
RMS2AF040 is not compatible with S1200BTL.
AXXRMS2AF040 is compatibe with S1200BTL.
This recipes would be not correct.
http://www.esaa-members.com/app/webroot/recipes/56VMWR970000000000-R5.pdf
Regards.
