Dear Fernando,
thanks at first for your answer. I did a mistake in writing, of course are 4x250 GB Hitachi in RAID 10 (0+1 effectively). I used the same RAID (Type, Hardware & Software) in three different Vista Ultimate installation. Only by last one have I these difficulties.
The installed BIOS (from Asus) is already latest 1238 but, I suppose, with legacy RAID-ROM. One attempt (in the past) to update ROM-File was unsuccessful cause of space deficiency by a RAID-ROM-file 84,5KiB. Even the delete of old RAID-ROM file and Logo-file don't allow me to insert/include the new one. The new version I downloaded is 119 KiB.
Don't remember anymore which applications are needed in addition for make the job.
Due the already under RAID installed Vista, do I need to reinstall the OS?