Thanks in advance for anyone that has any ideas. I have this same post going on at a DFI forum as well. I have had probelms with Raid 0 with this chipset since i got it. It seems that nforce 4 and raid drivers dont get along bery good. I was finaly able to get it working by enabling raid 0 striping in bios on both drives. Creating the raid array in the BIOS. Then not installing raid drivers during the XP 32-bit install. Installing XP then using the NView Raid utility to build the raid 0 stripe array after i plugged in the second hardrive. Now this is happening and im very confused. For some reason windows is only letting me use 34 gigs (one drive worth space) instead of the 68gig raid 0 stripe array. HEre is a picture. OF what im talking bout. Im very confused i have the lastest BIOS as Revision A for my lanparty nf4 sli -Dr and am using the latest chipset drivers. nForce_6.53_WinXP2K_english. Please help this is very annoying. Thanks in advance.