thanks for all the replies!! this forum is definitively a great place full of great people
"This was definitely not there for about a month in the beginning and is very random. Also heard only in a silent room"
that is what i hear, a very soft sound but probably it has been there forever, can't be sure, certainly it was there before the 4 feet tall hit i gave to the machine last week
i don't know if it is a normal operation noise or not, when i put my headphones i can't hear it, even without music playing
just tested in xp and i could hear the sound but considerably less times, i think it is a normal sound but can't be sure
i assembled a external hard disk with a samsung sata 2.5" and a empty external usb enclosure, it has its own noises too but very different ones
i can loose almost everything i have on this netbook except two folders i'm backing up now but i'm sure i can't use the warranty because the hits i gave to the unit can be seen easily
time will tell, for the moment it is performing very well
i will do the tests mentioned and report back