dfi lanparty nf4 -- 3rd sata drive install

I have a DFI LanParty nF4 motherboard with 2 sata drives installed
using RAID 1. I'm running fedora core 4.

I've installed a 3rd SATA drive and the kernel gave this message when
it was installed:

nv_sata: Secondary device added

But I can't seem to see the device beyond this message. fdisk -l only
shows /dev/sda and /dev/sdb along with the /dev/md devices.

I really just wanted to use this as a non raid drive, is that possible?