Just to point out, some i7 motherboards are only dual-channel:
http://www.msi.com/index.php?func=prodmbspec&maincat_no=1&cat2_no=170&cat3_no=&prod_no=1968
You should have no problem.
http://www.msi.com/index.php?func=prodmbspec&maincat_no=1&cat2_no=170&cat3_no=&prod_no=1968
You should have no problem.