hdparm say: max udma capable 2
the disk is udma5
 
/root/.gnupg/pubring.gpg
------------------------
pub  1024D/BE8E00BE 2002-12-06 Aryix Berius (nothing.........) <aryix@softhome.net>
     Key fingerprint = 249D C5BC 8B9A C46A C7F4  397D 2A6D 9FF6 BE8E 00BE
sub  2048g/C1C6CB29 2002-12-06