If you wanted to add size then it would be raid0 which requires a reinstall. raid1 would be a mirrored array and would not add size and requires a reinstall.
Not to mention raid0 is not very safe for important data.
Partitions are a good thing. I always run one drive for os and programs and one for data which facilitates a easier windows reinstall when that time comes.
So regardless of if you board supports it or not it does not sound like what you want.
Originally Posted by Mak213
Next the truth is that the 2 drives act as 1 drive. So you dont get the combined space of the 2 drive. Just the space of 1 drive.
True of raid1 which is a mirrored setup. raid0 gives you the size of both drives combined as 1. raid5 uses 3 drives and you get 2/3 or the total combined drive size.