Lenovo E431, E531 manual Power, Maximum, Performance Always, Battery Optimized

Table 4. Config menu items (continued)

Menu item	Submenu item	Selection		Comments
	OS Detection for Switchable	•	Disabled	If you select Enabled, the
	Graphics	•	Enabled	system UEFI automatically
				switches the graphics
				device setting to Switchable
				Graphics mode if the
				operating system supports
				this feature, and to
				Integrated Graphics mode if
				the operating system does
				not support this feature.
Power	Intel SpeedStep®	•	Disabled	Select the mode of Intel
	technology	•	Enabled	SpeedStep technology at
				runtime.
				•	Maximum
					Performance: Always
					highest speed
				•	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.
	Intel (R) Rapid Start	•	Disabled	Note: To use this feature, a
	Technology	•	Enabled	special partition on the M.2
				solid-state drive is required.
		Enter after:		When enabled, the system
		•	Immediately
				enters a lower power state
		•	1 minute	after the specified time in
				sleep state. And it takes
		•	2 minutes
				only seconds to resume
		•	5 minutes	normal operation.
		•	10 minutes
		•	15 minutes
		•	30 minutes
		•	1 hour
		•	2 hours
		•	3 hours

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