Some or all storage drives are missing
from the BIOS menu.
Ensure that the signal cables and power cables for all the
storage drives are connected correctly.
Ensure that the computer is configured correctly to support
the storage drives.
If the computer is installed with SATA storage drives, ensure
that the SATA storage drive enablement module (one to five storage
drives) is installed.
If the computer is installed with SAS storage drives, ensure
that the SAS storage drive enablement module (one to five storage
drives) or the LSI MegaRAID SAS adapter is installed.