MSI 955X Platinum Series User Manual page 108

(4) Specify Volume Size
Specify the amount of available array space to be used by the new RAID
volume. You may enter the amount in the space or use the slider to specify. It is
recommended you use 100% of the available space for the optimized usage. For
RAID 0 volume, if you do not specify 100% of the hard drive space, the rest hard
drive space will be worked as RAID 1 volume, which is the new technology called
Intel Matrix RAID. Then click Next to continue.
(5) Start Creating RAID Volume from Existing Hard Drive Wizard
Before you continue the procedure of RAID volume creation from existing
hard drive, read the dialogue box below carefully. Please note that once you click
Finish, the existing data on the selected hard drive(s) will be deleted permanently
and this operation cannot be undone. It is critical that you backup all important data
before selecting Finish to start the migration process.
Introduction to Intel ICH7R SATA RAID
5-19