Hey, I've got an external Lacie d2 300 GB harddrive. When it's not doing anything, it's really really quiet, which is great. But when it's active and I'm transfering files to or from it, it makes these horrible ticking sounds. I'm pretty sure it's the drive itself and not the fan, because the ticking seems to correspond to the start/finish of transfering a file and I've never heard a fan make this sound (and it doesn't make this sound on lower speeds).
But yeah, the ticking is very loud - it sounds like someone his hitting a piece of wood with a metal rod over and over, really fast. Any suggestions or advice would be great!