I have an old noisy HD on my system that I only use for backups. The high-pitch noise is driving me mad. Is there a way to stop the disk running, without affecting the way my other HD runs? In power options any setting seems to apply to all drives together. Or is the only way to turn it off in BIOS? My system: Win XP-Pro, Pentium IV 2,60 GHz, MSI Mobo 850-Max, 512 MB Rimm, 80 GB HD@7200, 16 GB HD@3600. DVB, DVD, CDWR, 17" LCD monitor. 2-puter LAN with shared internet connection via satellite, 1500 kbps down. 128 kbps up (RDSI using 2*64K B-channels). ISP = SatSpeed+. Connection via satellite is assisted with active-prefetching (nothing to do with windows-prefetching). The second comp in my LAN is identical, but P IV @ 2.80 GHz with 256 MB dram. I thought i'd just state all that since this is only my second post on the forum.