Omg Fernando I'm reading this post and hoping that this is what will work for me. I just put together the following system this morning: DFI NF4 SLI-DR Expert, 4400+ Toledo, 2 gig OCZ dual chan ram, 2 x 74 gig Raptor HDD, and some other fun stuff. Anyway, after i got it to boot up I tried to set up RAID for the hdd's using this manual, http://www.angrygames.com/nf4raid-1.htm but when i got to the part where you put in the floppy that came with the DFI board to install the SATA raid drivers, i got a message saying the oeminf.txt file (or something like that) was corrupt. So i got another copy of an updated set of drivers and a different file in that set was corrupt. So then I came across this and I hope this is what my problem is. I'm going to try it in the morning. As I understand it I just need a copy of winxp (i have it), nlite (i'll get it) and the up-to-date drivers (i'll get them). And them burn an .iso using nlite and the first post instructions. My only question is, will your method be a substitute for the initial process which requires the sata raid drivers on a floppy? Thanks so much and keep your fingers crossed for me.