Change from a Magic 3.0 to 3.1 ?

[sp4m]

Is there any differences in the installation between magic 3.0 and 3.1?

I have a 3.0 now, but maybe i can get a 3.1 for free... how hard would it be to change it? do i have to move any cables or can i just use the old ones?

thanx for any help...