Your board supports Raid configs. Go to Asus and go to support and search for Rampage II Gene. It will list the latest ver files for you to download. The latest Bios was 0904. But I would check all of the available files to make sure you are up to date and ready for Win 7. Attachment 29373
The above shows your internal Sata ports available on your board. It is from the manual which you can download. Attachment 29374
This is a shot of your bios screen where you set the controller in raid mode.
You will need: Under the downloads You will find Sata --- Intel Matrix Storage Manager Driver
V184.108.40.2063 Downlad this file and follow the instructions to make a floppy/USB stick for when you are loading Win 7
You Should get an F6 option during the load to load 3rd party drivers
Down load from Others -- JMicron JMB36X Controller Driver V220.127.116.11 and do the same as for the Matrix Storage Manager.
But first load your new bios and set your controller to raid. On your first boot do a "Ctrl + I" and create your raid array. Now your ready to load Win 7.