HP Micro Server N36L - setting Raid

I tried to set RAID 1 for mirroring.....

set it on CMOS....

but it didn't work... I can't format the drive.... 

when I tried to do format the drive....it shows up Blur Screen... or error messages...

so I used RAIDXpert...

(http://support.amd.com/us/gpudownload/windows/Pages/raid_windows.aspx#2)

and... now...... it's working!!!