Serg008, unfortunately this has ended up in a bricked board. Since this board was brand new i will try to RMA it. Anyway, it was worth a try. Thanks for your effort Serg008 !
Thanks for the feedback....Sorry... Try to reset bios by jumper or remove battery. Strange, but week ago same method's modified bios has been flashed and confirmed as working (with other Q1900-ITX mobo).