Se può interessare segnalo questa utility (non l'ho ancora provata perchè sono in attesa del mio primo notebook, ma ne ho sentito parlare bene):
http://www.hitachigst.com/hdd/support/download.htm
Power Booster
This utility works with our Travelstar drives. Power Booster is a utility for laptops that gives users direct control over the Advanced Battery Life Extender power settings for our mobile disk drives. Power Booster allows any computer with an ATAPI 4 mobile disk drive and running Windows 95/98 to directly control advanced power management features of the drive. Advanced Battery Life Extender is an advanced power savings implementation and Power Booster is a user interface to it.