I've had two Amilo si1520, one with a exchange of motherboard. Two of these motherboard was so noisy I couldn't use the laptop. The second computer was sent in for service since it can not handle audio and video without glithces (klicks and "freezes").. which the first Amilo couldn't either by the way.
The computer came back from service with the problem still there
and with high noise and piiping levels from the new motherboard that wasn't there to nealry the same degree before it went in for service. The noise is now so loud it mathces the first Amilo I bought and hence it is useless.
The annoying sounds is not coming from the HD or fan, it seems to come from lousy parts on the motherboard. Oscilators/clocks, microprocessors and other chips often vibrate to a small degree.. sometimes more sometimes less and can create resonances in the motherboard and other structures in the "non-damped" laptop.
The scary thing is right now I'm typing on a Packard Bell that is completely silent.. for half the price of the amilo. It also run audiofiles without problems which the Amilo can not so far.
The even more scary thing is FSC attitude to this well known problem. A bulletin went out to Swedish service partners (FSC doesn't repair their own products but outsource this part) were FSC said they are aware about the noise problems but there is nothing that can be done to the situation..
How about taking a look at other CHEAPER BETTER laptops from other companies???
Swedish techies feel that FSC computers are of relatively poor quality since they often have to repair and troubleshoot these and they feel that they are more noisy than other laptops. That should be read as "much to noisy".
If you want quality and good customer support chances are you have better luck with other companies.