MSI 945G Neo User Manual page 93

(3) Reset Disks to Non-RAID
Select option 3 Reset Disks to Non-RAID and press <Enter> to delete the RAID
volume and remove any RAID structures from the drives. The following screen
appears:
Press <Y> key to accept the selection.
MSI Reminds You...
1. You will lose all data on the RAID drives and any internal RAID
structures when you perform this operation.
2. Possible reasons to 'Reset Disks to Non-RAID' could include issues
such as incompatible RAID configurations or a failed volume or
failed disk.
Introduction to Intel ICH7R SATA RAID
5 - 7