Hi,
I have Scaleo Pa 1519 with M2R-FVM motherboard. It has had Seagate ST3250824AS since I bought it. And I added Western-Digital WD1600JS-08NCB1 later. Both are SATA. WD drive supports low-niose management option in BIOS.
Sometimes I hear strange noise from hard drives. I am not sure, which of them makes this noise. It sounds like a "clock". Ticking with period of 0.5-1 seconds and some dizzing in between. This can start any time and end by itself. A duration can also vary from less than a minute to several and probably tens of minutes. It is not connected to computer usage, either I run a game or it just idle and I am sitting in other end of the room.
What could it be?