Brian and Shaene-- your info is useful. Do you know how this applies to external FW drives. Do they spin down as well as the internal drives? I have several external FW devices that I use on an occasional basis--how is the best way to handle them. Brian-- I notice in a later post-- you evidently disconnect yours. I would find this inconvenient but I could do it if that seems to be the best way. I use mine primarily for archiving and backup purposes (on a manual basis not with software). Any thoughts? John in Tucson On Feb 10, 2004, at 8:23 PM, Brian Silverio wrote: > Anne, > "Use separate time to put display to sleep" just turns your monitor > off. If you are running a download or or backup they will continue to > run. Move the mouse or press a key and the monitor turns back on. > > "Put the hard disk to sleep when possible" will cause your hard > drive(s) to spin down if they are not accessed in some (unknown to me) > time period. I have five drives and find that my boot drive rarely > spins down. The others often do. Then when I do something that uses > the "sleeping" drive I have to wait for it to spin up to speed. Again > downloads and backups will continue to run w/o problem. > > "Put computer to sleep when it is inactive for x minutes" is another > story. My understanding of "inactive" is that a human has not touched > a key or moved the mouse in x minutes. when this happens your > downloads will stop, also any other process that is running will stop. > Things will resume when you wake the machine up. Your download will > have to be restarted. I would think twice about trusting a backup > that had a system sleep happen in the middle. Unless you had verified > the backup. > > I hope this helps > > Brian