That is correct, once you have set RAID as your mode of SATA your drives will not show in BIOS
How I install Windows is quite simple really.
USB OS drive - Microsoft USB tool works perfectly for me.
Only the two SSD's that I wish to have my OS installed on in the Intel 6G SATA ports.
USB stick in a USB2 port.
In BIOS F5 to defaults.
Set RAID as mode of SATA
Ctl I for RAID set up.
Set up my RAID
Save and exit
Boot to OS install.
USB stick will be picked up automatically.
If you are using Win7 SP1 or Win8 you will not need to install any RAID drivers.
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