ThinkPad S540 - Page 111

•Someitemsaredisplayedonthemenuonlyifthecomputersupportsthecorrespondingfeatures.
ThefollowingtableliststheStartupmenuitems.
Table6.Startupmenuitems
Menuitem
SelectionComments
Boot
Referto“Changingthestartup
sequence”onpage94
.
NetworkBoot
•USBCD
•USBFDD
•ATAHDD0
•ATAHDD1
•USBHDD
•PCILAN
Selectthebootdevicewhenthesystem
wakesfromLAN.IftheWakeon
LANfunctionisenabled,thenetwork
administratorcanturnonallofthe
computersinaLANremotelybyuseof
networkmanagementsoftware.
UEFI/LegacyBoot•Both(IfOSOptimizedis
Disabled)
•UEFIOnly(IfOSOptimizedis
Enabled)
•LegacyOnly
UEFI/LegacyBootPriority
•UEFIFirst
•LegacyFirst
CSMSupport(forUEFIOnly)
•No
•Yes
Selectsystembootcapability.
•Both:Thesystembootsbythe
followingUEFI/LegacyBootPriority
setting.
•UEFIOnly:Thesystembootsfrom
theUEFIenabledoperatingsystem.
•LegacyOnly:Thesystembootsfrom
anyoperatingsystemotherthanthe
UEFIenabledone.
Note:IfyouselectUEFIOnly,the
systemcannotbootfromthebootable
devicesthatdonothavetheUEFI
enabledoperatingsystem.
CompatibilitySupportModule(CSM)is
requiredforbootingthelegacyoperating
system.IfyouselectUEFIOnly,CSM
Supportwillbeselectable.ForBothor
LegacyOnlymood,CSMSupportwill
notbeselectable.
BootMode
•Quick
•Diagnostics
TheQuickbootisintendedtobootthe
operatingsystemassoonaspossible
byreducingthePOSTelapsedtime.The
Diagnosticsbootistobeusedforthe
problemdeterminationbyperforming
testsofthedevices.
OptionKeyDisplay
•Enabled
•Disabled
IfyouselectDisabled,thenthemessage
“Tointerruptnormalstartup,pressEnter”
willnotbedisplayedduringthePOST.
BootDeviceListF12Option
•Enabled
•Disabled
IfyouselectEnabled,theF12keywillbe
recognizedandtheBootmenuwindow
willbedisplayed.
BootOrderLock
•Disabled
•Enabled
IfyouselectDisabled,yourcomputer
willbootusingthedefaultpriority.Ifyou
selectEnabled,yourcomputerwillboot
usingthepriorityyouhavecustomized.
Chapter8.Advancedconfiguration95