Glad that I could help. Remember slot 1 is wired as x8 and can support up to 2 SSD, slot 4 is x16 and can support up to 4 SSD. Slot 5 is gen 2, intended for thunderbolt and only support half the speed.
The only annoyance/limitation to RAID options is the OS. If you are running a non-server type OS like Windows 7,10, etc., regardless of the version, you are limited to RAID 0 (Striping) and 1 (Mirroring). RAID 5 which I'd have liked to use is not supported by the OS so it is grayed out.
I am not sure even if the RAID configuration could have been done in the BIOS, if Windows 10 would properly see and work with it or not but OS controlled RAID functionality is definitely very limited and I would have liked it more if the RAID setup was not controlled by the OS.
Chino de Oro
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Posted January 26th, 2022 23:00
@elemamae , yes it does. It support bifurcation natively so there is no menu option. Inside OS, you will see each partition and set up at your choice.