Lenovo X131E manual Menu item Submenu item Selection Comments Power, Maximum Performance

Table 4. Config menu items (continued)

Menu item	Submenu item	Selection		Comments
Power	Intel SpeedStep®	•	Disabled	This sub-menu is for
	technology	•	Enabled	Intel SpeedStep mounted
				models only.
		Mode for AC		Select the mode of Intel
		•	Maximum Performance
				SpeedStep technology at
		•	Battery Optimized	runtime.
		Mode for Battery		•	Maximum
					Performance: Always
		•	Maximum Performance		highest speed
		•	Battery Optimized	•	Battery Optimized:
					Always lowest speed
				•	Disabled: No runtime
					support, lowest speed
				Note: This sub-menu is not
				supported in models with
				an AMD CPU.
	CPU Power Management	•	Disabled	Unless this power-saving
		•	Enabled	feature is disabled, it
				stops the processor clock
				automatically when there
				is no system activity. You
				usually do not need to
				change this function.
	Power On with AC Attach	•	Disabled	Enables or disables a
		•	Enabled	feature that powers on the
				system when the ac power
				adapter is attached.
				If you select Enabled, the
				system is powered on when
				the ac power adapter is
				attached. If the system is in
				hibernate state when the ac
				power adapter is attached,
				the system resumes.
				If you select Disabled, the
				system is not powered on
				nor resumed when the ac
				power adapter is attached.
	Intel (R) Rapid Start	•	Disabled	To use this feature, a special
	Technology	•	Enabled	partition on the solid-state
				drive is required.
		Enter after:		When enabled, the
		•	Immediately
				computer enters a lower
		•	1 minute	power state after the
				specified time in sleep
		•	2 minute
				state. And it takes only
		•	5 minutes	seconds to resume normal
		•	10 minutes	operation.
		•	15 minutes

Chapter 7. Advanced configuration 93