Possible values of an option:
The option description:
This option normally entering into group under the general title
Or similar, is responsible for tracking activity of the disk drive and the periphery connected to serial and parallel ports of the computer.
At value [Disabled] (or [Ignore], [Off]) tracking the given devices misses, allowing the computer to pass in power savings mode even at their activity. Value [Enabled] (or [Monitor], [On]) orders to quit a mode with the under consumption of energy (or not to pass in it) at activity of any of marked above devices.
Other options identical to destination: