Hi maklabouhel,
In short - No.
Assuming that you are wanting to set up your RAID array on SSDs attached to SATA ports - you will need to set the SATA ports to RAID. Then you'll need to invoke the RAID configuration capability during the BIOS start up cycle to build your RAID 1 array.
Booting from your NVMe drive will not be affected.
Regds, JR
p.s. An NVMe drive cant be set to AHCI (if that's what you meant); NVMe is a modern alternative to AHCI designed specifically for solid state storage.