Pavilion 523n and Sound Blaster 5.1

I want to change the audio on my Pavilion 523n, and having installed an
earlier version of Sound Blaster on a different computer a few years ago, I
want to install Sound Blaster Live 5.1 on the Pavilion.. Will Legacy , etc
on the Pavilion prevent me from doing so? Are there any known problems
pecular to the 523n with an Athelon 2000 chip?
Thanks
Mike