GA-8KNS Ultra 939 PATA RAID Configuration

I have just recently upgraded to the GA-8KNS Ultra 939. At present I
havea Maxtor 80 GB HDD ATA 133. I work wit a lot of large files so my
HDD takes a lot of thrashing. I dont really want to spend a lot of
money so I thought I would add an additional 80 GB HDD and set it up
as RAID 0.

After spending the morning searching the forums and google I have come
up with almost no information. My questions a

1) Does this board actually support PATA RAID?
2) Is the performance using the onboard ATA RAID really as dismal as
they say?
3) Can I just add the second HDD and set up the array within windows
using the Nvidia (Nraid) controller?
4) Or will I have to completely reformat my computer and install RAID
drivers on install?

Thanks for any and all help.

Regards,

Wad