Aurora R8, setting up a RAID 0? advice please

Hi guys, Long story short, I wanted to (correctly) set up a RAID0 between two SSD’s I’ve added since buying my R8. Shipped with 512gb boot NVMe SSD and a 2tb HDD and SATA mode set to AHCI in BIOS.

I’ve physically installed the two samsung pro 850’s and everything works under AHCI as separate drives. Not a problem there. Not sure if I’ve done this right thus far, but everything seems to work. I’d appreciate some input if what I’ve done was correct or needs redoing etc etc.

Here’s what I’ve done... Went into BIOS and changed SATA from AHCI to RAID ON. Rebooted and was expecting a non-boot situation as the OS was installed under AHCI - to my surprise, it booted to desktop without any sign of an issue.

No sign of any ‘enter RAID settings using CTRL&I’ during boot so I went to Intel and downloaded and installed RST and was able to configure the RAID 0 array between the two Samsung’s as I wanted.

All appears to be working fine, installed steam onto the new array, OS drive appears to be functioning normally, as does everything else. I was really expecting to have to reinstall the OS, didn’t expect it to boot after making the changes.

Have I done this correctly or have I missed anything in the process? - tried to find a guide but couldn’t. I’d appreciate any input on this subject, if I’ve made any errors or done it the wrong way, I’d appreciate info on the best way to have done this.

Thanks in advance guys.