Lenovo X220I TABLET, X220 TABLET, X220-4287, 42872W5, 42875TU, 42912XU manual Maximize Performance

Table 6. Config menu items (continued)

Menu item	Submenu item	Selection		Comments
	Adaptive Thermal	Scheme for AC		This selects a thermal
	Management	•	Maximize Performance	management scheme to
				use.
		•	Balanced
		Scheme for Battery		Maximize Performance:
				Reduces CPU throttling
		•	Maximize Performance	Balanced: Balances
		•	Balanced
				sound, temperature and
				performance
				Note: Each scheme affects
				fan sound, temperature,
				and performance.
	Optical Drive Speed	•	High Performance	Set the speed of optical
		•	Normal	drive to the desired
				performance.
		•	Silent
	CPU Power Management	•	Disabled	Enable or disable the power
		•	Enabled	saving feature that stop
				the microprocessor clock
				automatically when there
				are no system activities.
				Normally, it is not necessary
				to change the setting.
	PCI Express Power	•	Disabled	Enable or disable a feature
	Management	•	Enabled	that automatically adjusts
				power management when
				there is no PCI Express
				activity. Normally, it is not
				necessary to change the
				setting.
	Power On with AC Attach	•	Disabled	Enable or disable a feature
		•	Enabled	that powers on the system
				when AC is attached.
				If you select “Enabled”, the
				system is powered on when
				AC is attached. When the
				system is in hibernate state,
				the system resumes.
				If you select “Disabled”, the
				system is not powered on
				nor resumed when AC is
				attached.

190User Guide