I am trying to do a simple setup as hardware Raid 0 to get the best performance out of my existing system but continue running into problems. Components K9A2 Platinum/ Bios 1.4 Vista Ultimate 64 Apevia case with gauges, 1- 120mm and 3-80mm fans 1- WD 10k raptor 2-15k Fujitsu MAX3147RC 2-2GB GSkill pc8500 1066mhz AMD Phenom 9600BE ATI FireGL 5600 1- DVD/CD with litescribe 1- floppy drive 1- multi card reader OCZ 700watt ps I have been setup Promise Raid 0 on the K9A2 Platinum and I am not able to get Vista to stripe across the raid disks like it is supposed to. One setup was using the Fujitsu drives on the Promise 5 & 6. Both disk were setup on LD1, Raid 0 stripe. Under Disk Management this shows up as one disk(C Drive), but the OS or any other info only goes on one disk and does not stripe across both disks because the second disk is only an extension of the first. Anything installed on the C Drive goes to the first disk and nothing will go on the second disk(at least until the first disk is full). Because both disk are the C Drive(one extending or spanning to the other) software striping is not an option. The second setup using the Fujitsu drives on the Promise 5 & 6. This time I set the disks up on LD1 and LD2 Raid 0 stripe. During the install, Vista only lets you select one of the drives to install the OS on. Under Disk Management this shows up as 2 different disk, but Vista is not striped across both disk. Why isn't Vista striped across both harddrives? You can however use any unallocated space on these drives to do a software stripe with Vista Ultimate. This seems to only be good for storage. The last time I checked hardware Raid 0 meant striping info across the disks for faster performance. This system is slow for the components it has. It all points to a crappy motherboard.