ASROCK 939S56-M Manual page 8

4. When the JBOD array's configuration is finished, click the Create
button. Then a warning message will pop up. Pay attention to the
warning message, and then click Yes button to finish the creation of
JBOD array, or click No button to cancel.
NOTE
If the disk you selected has the ability of booting,
another warning message will pop up before "SiS
Software RAID" message. You may click Yes button
to continue or click No button to cancel.
5. Next, another message box will pop up to tell user that disk setting
has been changed and ask whether to restart the computer or not.
Click Yes button to restart the computer or click Cancel button to
skip restarting.
NOTE
New Setting will be activated only after you restart
the computer.