cipisek said:
Remedy to your problem is like this:

Find somewhere in the internet this three files:

jraid_i.inf
Jraid.sys
jraid.cat

( They come in drivers-pack for your Amilo Xi2550 as well. )

Move them to SD card.

Let SD card in computer, boot from installation DVD and in the hard driver windows choose "select driver". Point to the memory card ( SD ) and choose one of them.

Done - you see all SCSI ( SATA ) driver in your machine. Now, you can make partition on the disks or whatever you like.

Thank you very very so much its work for me