Advanced Acoustic Management (AAM)
Into this page you can set the loudness of your hard disk: a more loud disk is more fast than a quiet disk. This feature is not available for all disks, because it was declared obsolete in decemeber 2010 with the document ATA ACS-2 revision 4a.
To set a new value, move the ruler and then click "Set value". When you enable this feature you can see also the recommended value of manufacturer.
Set to 0 to disable this feature.