After loading the hard disk controler in mine PowerMac G4 MDD 1.25Ghz has started to peep. High frequency peep, is interrupted when on the computer there is a loading, for example fulfill dd if =/dev/zero of=img bs=1k count=10000000
[demime 1.01d removed an attachment of type application/pkcs7-signature which had a name of smime.p7s]