Run the Intel Control Panel software, and disengage/un-accelerate the cache drive in it's settings. It may take a while, as all the info on the SSD make need to be copied to the HDD.
In your BIOS, set your SATA ports from RAID to ACHI (not really neccesary).
Secure Erase the SSD, using the OCZ Toolbox, or Parted Magic.
Then, through Disk Management*, format the drive, and it's ready.
*start/computer/right-click/manage/disk management/right click on drive/make your choices.
BTW: 60GB is nothing, you won't be able to copy much to it.