The board you are looking support for is discontinued but as long as you have the latest firmware update you should be able to configure the BMC in the BIOS successfully. Apparently the board you have is defective so we suggest replacing it.
Thank you for your answer.
That was my mistake, i work only with boars s1200 or newer series, where without RMM i can use embended web server to control board.
But by reading manuals for S5500BC->BMC->ARF i discovered that this board without RMM didn't have web server page
All was simple