Unidentified subject!

["Sergio E . Schvezov" <fox@interlap.com.ar>]

hello debian users

i'm writinng this message to find out if u can orient me into fixing a problem i have with
A.P.M., here's my procedure:

crush:~# hdparm -Y /dev/hda
    /dev/hda
    issuing sleep command

//and the hd turns off
// but 30 seconds later :(

crush:~# hda: irq timeout: status 0xd0 {Busy}
ide0: reset: succes

---------////------------///---------------

but if i do the same with my other identical hd (/dev/hdc)
i don't get that reset

my disks are :

SAMSUNG SV0844A

the same similar thing happens when i do:

apm -S


thanx in advance