Lenovo E435 Menu item Submenu item Selection Comments Display, ThinkPad LCD, Switchable Graphics

Table 4. Config menu items (continued)

Menu item	Submenu item	Selection		Comments
Display	Boot Display Device	•	ThinkPad LCD	Select the display device
		•	Analog (VGA)	that is to be activated at
				boot time. This selection
		•	HDMI
				is effective for boot time,
				password prompt, and
				ThinkPad Setup.
	Graphics Device	•	Switchable Graphics	The Integrated Graphics
		•	Integrated Graphics	mode provides longer
				battery life, while the
				Switchable Graphics mode
				enhances performance.
	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.
		Mode for AC		•	Maximum
		•	Maximum Performance		Performance: Always
					highest speed
		•	Battery Optimized
				•	Battery Optimized:
		Mode for Battery			Always lowest speed
				•	Disabled: No runtime
		•	Maximum Performance
					support, lowest speed
		•	Battery Optimized
				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.
	PCI Express Power	•	Disabled	Enables or disables a
	management	•	Enabled	feature that automatically
				adjusts power management
				when there is no PCI
				Express activity. You
				usually do not need to
				change this function.
Beep and Alarm	Keyboard Beep	•	Disabled	Enables or disables the
		•	Enabled	keyboard beep when
				unmanageable key
				combinations are pressed.

106User Guide