I have 2 seagate 500gig 7200.11 drives in raid 0. i currently just installed windows on to it and made a small 25 gig partition for the os and thats all i have. i then remembered i had an old 7200.10 320gig drive that i wanted to use for my pagefile music. now the raid setup was configured as disk0 but after i plugged in my old drive it became disk1. because of this my os is on disk 1 and not 0 which kinda bugs me. i changed the boot order in my bios but that doesnt change the fact that the other hdd is 0 and not 1. if i unplug the secondary drive the raid setup goes back to 0. i can not simpily switch cables or ports as they are driffernt drives and in raid setup. i have the two drives in raid on my gigabyte sata controller which only has 2 ports. the secondary is on my intel sata controller. so i was wondering if that controler has disk priority or something. my question is disk the fact that my os is on disk 1 have any performance limitations and is there a way i can have my raid installed and my secondary but keep my raid setep as disk 0. or is there a way i can change which disk is what in windows?