cannot access my third hard drive

[hockey3]

I have just setup my new computer and just configured a raid0 (sata) with 2 500gb hard drives. I finished installing xp and wanted to copy some of my files over from my old 250gb hard drive (ide), so I hooked it up (trying both slave and master) but xp (with raid) will not recognize it in my computer or in device manager. Also I had to wipe out grub from the 250gb but it was successful. Any suggestions?

 

[CompTIA_Rep]

Check bios and make sure it sees it and it is activated.

 

[hockey3]

I checked and it does see it and it is activated. also I changed the raid controller in the bios back to ide and was able to boot the 250gb drive into windows but it was really slow and for some reason my usb ports wouldn't work so thats as far a I got.
any further suggestions?