I just bought an old cube to use as a test server (need to buy 5 in total, I thought I'd try one first), perfect little machines. Installed some more RAM and a new HDD, Seagate 7200.9 80GB. All well and good. The whole machine is practically silent except occasionally the HDD (it can't be anything else) makes REALLY loud seek sounds. The first time it scared the hell out of me it was so loud, I it sounded like some threw ball-bearings into a fan! There are some reports of loud seek noise around and SMART says it's fine but is this normal? I can't seem to pin it down to any particular behaviour, it's just every now and then.