Lenovo ThinkPad Edge E425 - Page 119

Table4.Congmenuitems(continued)
Menuitem
SubmenuitemSelectionComments
Changeto“F1–F12keys”
•Default
•Legacy
Ifyouselect“Default,”
pressingF1–F12initiates
specialfunctionsillustrated
oneachkey.Ifyouselect
“Legacy,”youcanuse
F1–F12asstandard
functionkeys.
BootDisplayDevice
•ThinkPadLCD
•Analog(VGA)
•DigitalonThinkPad
Selectthedisplaydevice
thatistobeactivatedat
boottime.Thisselection
iseffectiveforboottime,
passwordprompt,and
ThinkPadSetup.
GraphicsDevice•IntegratedGraphics
•SwitchableGraphics
TheIntegratedGraphics
modeprovideslonger
batterylife,whilethe
SwitchableGraphicsmode
enhancesperformance.
Display
OSDetectionforSwitchable
Graphics
•Disabled
•Enabled
Ifyouselect“Enabled,”the
systemUEFIautomatically
switchesthegraphics
devicesettingtoSwitchable
Graphicsmodeifthe
operatingsystemsupports
thisfeature,andto
IntegratedGraphicsmodeif
theoperatingsystemdoes
notsupportthisfeature.
OpticalDriveSpeed
•HighPerformance
•Normal
•Silent
Settheopticaldrivespeed.
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.
Chapter7.Advancedconguration101