[SOLVED]: Primary Master Hard Disk Error. Reboot and select proper boot device or insert boot media in selected boot device and press key.

My server was unable to boot from hard disk (it was impossible to choose that disk drive as a boot option in BIOS). The solution was to change SATA settings:
I set "Configure SATA#1 as" to "[AHCI]" and "AHCI CodeBase" to " [Intel AHCI ROM]".
(instead of "SATA#1 Configuration [Enhanced] / Configure SATA#1 as [IDE]" which did not work for me)

#Supermicro Primary Master Hard Disk Error
#Primary Master Hard Disk Error
#Secondary Master Hard Disk Error
#Supermicro BIOS can see disk drive, but can't boot from it
#Supermicro BIOS can't see the disk as boot option