User's Manual

Table Of Contents
2.Turnonthecomputer,then,whiletheThinkPadlogoisdisplayedatthelower-leftofthescreen,
pressF12.
3.Selectthedeviceyouwanttostartrst.
Note:TheBootmenuwillbedisplayedwhenthesystemcannotbootfromanydeviceortheoperating
systemcannotbefound.
ThefollowingtableshowsthecontentsoftheStartupmenuitems.
Notes:
Defaultvaluesareinboldface.
Oneachsubmenu,pressEntertoshowselectableoptionsandselectadesiredoption.
Someitemsaredisplayedonthemenuonlyifthecomputersupportsthecorrespondingfeatures.
ThefollowingtableliststheStartupmenuitems.
Table4.Startupmenuitems
Menuitem
SelectionComments
Boot
Referto“Changingthestartup
sequence”onpage75.
NetworkBoot
USBCD
USBFDD
ATAHDD0
ATAHDD1
ATAHDD2
USBHDD
PCILAN
SelecttoppriorityoftheBootPriority
OrderwhenwakingfromLAN.
UEFI/LegacyBootUEFIOnly
Both
LegacyOnly
EnabletheUEFI/Legacyboot.
UEFI/LegacyBootPriority
UEFIFirst
LegacyFirst
Selectpriorityofbootoptionbetween
UEFIandLegacy.
CSMSupport
No
Yes
CompatibilitySupportModule(CSM)is
denedinUEFIspec.
BootMode
Quick
Diagnostics
TheQuickbootisintendedtobootthe
operatingsystemassoonaspossible
byreducingthePOSTelapsedtime.The
Diagnosticsbootistobeusedforthe
problemdeterminationbyperforming
testsofthedevices.
OptionKeyDisplay
Disabled
Enabled
IfyouselectDisabled,thenthemessage
“Tointerruptnormalstartup,pressEnter”
isnotdisplayedduringthePOST.
76UserGuide