razer blade 2018 rz09-02705

has 2 drives:

- CV6-8Q128 Lite On CV6 Series 128GB SATA 6.0 Gbps SSD

- Seagate Firecuda 2tb ssd



When laptop boots I press p12 to select which device to boot off, and the only option to select is the LITE-OD SSD, the seagate is not an option. why?



I had booted from a w10 install USD drive and successfully installed w10 on the Seagate drive, but the bios wonbt let me boot from the 2nd drive, why