Lenovo ThinkPad Edge E430 - Page 122

Table4.Congmenuitems(continued)
Menuitem
SubmenuitemSelectionComments
BootDisplayDevice
•ThinkPadLCD
•Analog(VGA)
•HDMI
Selectthedisplaydevice
thatistobeactivatedat
boottime.Thisselection
iseffectiveforboottime,
passwordprompt,and
ThinkPadSetup.
GraphicsDevice•SwitchableGraphics
•IntegratedGraphics
TheIntegratedGraphics
modeprovideslonger
batterylife,whilethe
SwitchableGraphicsmode
enhancesperformance.
Display
OSDetectionforSwitchable
Graphics
•Disabled
•Enabled
IfyouselectEnabled,the
systemUEFIautomatically
switchesthegraphics
devicesettingtoSwitchable
Graphicsmodeifthe
operatingsystemsupports
thisfeature,andto
IntegratedGraphicsmodeif
theoperatingsystemdoes
notsupportthisfeature.
IntelSpeedStep
®
technology
•Disabled
•Enabled
ModeforAC
•MaximumPerformance
•BatteryOptimized
ModeforBattery
•MaximumPerformance
•BatteryOptimized
SelectthemodeofIntel
SpeedSteptechnologyat
runtime.
•Maximum
Performance:Always
highestspeed
•BatteryOptimized:
Alwayslowestspeed
•Disabled:Noruntime
support,lowestspeed
Note:Thissub-menuisnot
supportedinmodelswith
anAMDCPU.
CPUPowerManagement
•Disabled
•Enabled
Unlessthispower-saving
featureisdisabled,it
stopstheprocessorclock
automaticallywhenthere
isnosystemactivity.You
usuallydonotneedto
changethisfunction.
Power
PCIExpressPower
management
•Disabled
•Enabled
Enablesordisablesa
featurethatautomatically
adjustspowermanagement
whenthereisnoPCI
Expressactivity.You
usuallydonotneedto
changethisfunction.
BeepandAlarmKeyboardBeep•Disabled
•Enabled
Enablesordisablesthe
keyboardbeepwhen
unmanageablekey
combinationsarepressed.
106UserGuide