in meantime on my 3rd visite to Intel's downloads I finally noticed the newer version 0.49 :-) simply it had changed name from BIOS to Firmware.
I updated flash to 0.49, but no change. When I set RAID and LSI there is not a single hd found.
I connect a single SATA 2 disk to Sata 0 but BIOS doesn't see a disk.
When Raid is set to Intel, Bios finds harddisk.
Did I missed something or motherboard is faulty?
That's expected behavior - once you enable ESRT2 the BIOS doesn't manage the HDDs directly. The ESRT2 OpROM manages the disks, and thus the HDDs are not displayed in BIOS. You should disable Quiet Boot in BIOS and press Ctrl-E during POST to configure RAID. Once RAID is created the VD can be seen in Boot Options menu in BIOS. You may refer to the following step-by-step demo: