Back everything up before doing anything. Start the computer and usually just after the computer post screen there will be a raid post screen. It will tell you what button to press to configure raid. Once in the setup set the controller to JBOD - just a bunch of disks. This will treat each drive connected to the raid controller as a separate drive.
If you have two controllers on the motherboard you could move the drives over to the non-raid one and boot from there.
I appreciate the info, however I am not seeing anything come on screen telling me to configure raid, is there something else I could try?