I ran into this issue with an Intel DG965RY. If you look at the datasheet from intel, specifically section 1.2 (page 43) you can see the differences between the two.
http://www.intel.com/content/www/us/en/io/intel-io-controller-hub-8-datasheet.html
They are not significant enough to pose an issue in this case. I've ran the DSDT edit for the mobile version on this board for a year and have not seen any issues at all.
Good luck.