I have the diamond max 9 sata version
its supports AAM
Did you try Hitachi Feature Tool?
If you cannot find a tool, we can examine it from the beginning, and
maybe make a tool "shutup" or similar. In that case initially download
Findpart for DOS version 4.36 at
http://inet.uni2.dk/~svolaf/utilities.htm
do from boot to a DOS floppy:
findpart ide ext fp.txt
and see if the disk is listed in fp.txt.
This would also apply to users with Seagate disks without documented
acoustic management support.