Hello all,
I recentally bought a new 15 powerbook with an 80gig 5400prm HD. The HD makes a low humming sound the entire time the powerbook is on. This noise isn't loud, though it is audible while I'm typing. I was just wondering if the 80 gig 4200rpm HDs do the same thing, because my friends 12 inch powerbook with a 40gig 4200rpm HD runs basically silently.