thx 4 those tutorials i did all the steps you described but it seems that it doesn't work first i set up the raid bios then i made my unattended win-cd - the textmode setup seems to load the drivers (no errors), but when it asks for choosing a partition to install i don't see a raid-array but the 2 hdds the raid is made of my config-files: txtsetup.sif [SourceDisksFiles] nvatabus.sys = 1,,,,,,4_,4,1,,,1,4 nvraid.sys = 1,,,,,,4_,4,1,,,1,4 [HardwareIdsDatabase] PCI\VEN_10DE&DEV_008E, "nvatabus" PCI\VEN_10DE&DEV_0085, "nvatabus" PCI\VEN_10DE&DEV_00D5, "nvatabus" PCI\VEN_10DE&DEV_00EE, "nvatabus" PCI\VEN_10DE&DEV_00E3, "nvatabus" PCI\VEN_10DE&DEV_00E5, "nvatabus" PCI\VEN_10DE&DEV_0035, "nvatabus" PCI\VEN_10DE&DEV_0036, "nvatabus" PCI\VEN_10DE&DEV_003E, "nvatabus" PCI\VEN_10DE&DEV_0053, "nvatabus" PCI\VEN_10DE&DEV_0054, "nvatabus" PCI\VEN_10DE&DEV_0055, "nvatabus" *_NVRAIDBUS = "nvraid" GenNvRaidDisk = "nvraid" [SCSI.load] nvatabus = nvatabus.sys,4 nvraid = nvraid.sys,4 [SCSI] nvatabus = "NVIDIA NForce Storage Controller" nvraid = "NVIDIA RAID CLASS DRIVER" winnt.sif OemPnPDriversPath="Drivers\Athlon64;Drivers\FP767;Drivers\NVRAID;Drivers\NVLAN" hardware = msi k8 neo4 ultra