Supermicro C7Z270-CG Motherboard User's Manual
14. RAID capacity size can be changed here.
15. The information indicated below confirms that the RAID was successfully
created.
16. On the main screen, select Save & Exit. Set the item, DUAL Boot Option #1,
to [UEFI Hard Disk].
17. Press <F4> key to save the configuration and restart the system.
F-4