Why is it that its RAID Option interface displays no hard disks to create RAID when I use legacy devices like RocketRAID 840A cards?
By default, CSM is disabled and Above 4G Decode is enabled. If you want to use any legacy devices, please enter your motherboard BIOS Setup to set CMS to [Enable] and Above 4G Decode to [Disable].
Note: If Above 4G Decode is disabled, Dual-GPU graphics cards and Thunderbolt ports may not work.
