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Dell Vostro 5581 Setup and specifications guide

Power management

Table 1. Power Management. The table describes the power management options.
Option	Description
AC Behavior	Allows you to enable or disable the computer from turning on automatically when an AC adapter is connected. Wake on AC This option is not set by default.
Enable Intel Speed Shift Technology	Allows you to enable or disable the Intel Speed Shift Technology. Enabled—Default
Auto On Time	Allows you to set the time at which the computer must turn on automatically. The options are: Disabled—Default Every Day Weekdays Select Days This option is not set by default.
USB Wake Support	Allows you to enable USB devices to wake the system from standby. Enable USB Wake Support This option is not set by default.
Wake on LAN	This option allows the computer to power up from the off state when triggered by a special LAN signal. Wake-up from the Standby state is unaffected by this setting and must be enabled in the operating system. This feature only works when the computer is connected to AC power supply. Disabled—Default - Does not allow the system to power on by special LAN signals when it receives a wake-up signal from the LAN or wireless LAN. LAN Only - Allows the system to be powered on by special LAN signals.
Block Sleep	This option minimizez AC power usage at times of peak demand.
Peak Shift	Allows you to block entering to sleep in OS environment.
Advanced Battery Charge Configuration	This option enables you to maximize the battery health. By enabling this option, your system uses the standard charging algorithm and other techniques, during the non-work hours to improve the battery health.
Primary Battery Charge Configuration	Allows you to select the charging mode for the battery. The options are: Adaptive—Default Standard - Fully charges your battery at a standard rate. ExpressCharge- The battery charges over a shorter period of time using Dell’s fast charging technology. Primarily AC use Custom If Custom Charge is selected, you can also configure Custom Charge Start and Custom Charge Stop. NOTE: All charging mode may not be available for all the batteries. To enable this option, disable the Advanced Battery Charge Configuration option.