Gigabyte Z390 AORUS XTREME User Manual page 71

C-2. UEFI RAID Configuration
Step 1:
In BIOS Setup, go to BIOS and set CSM Support to Disabled (Figure 6). Save the changes and exit BIOS Setup.
Step 2:
After the system reboot, enter BIOS Setup again. Then enter the Peripherals\Intel(R) Rapid Storage Technology
sub-menu (Figure 7).
Figure 6
Figure 7
- 71 - Configuring a RAID Set