[herpfan]

I have an old PC running XP with 2, 500G drives in RAID0. Would it be possible to put them in my new Win7 build as RAID0 data drives and still access the old data even though it will be a different RAID controller?

 

[LMiller7]

Probably not.
This is usually possible only if the controllers are the same or very similar. A program such as R-Studio can recover the data do this but be aware that this a commercial program.

The difficulty of data recovery is just one of the reasons why RAID 0 is not generally recommended for desktop use.