User's Manual

Table Of Contents
Table6.Startupmenuitems
Menuitem
SelectionComments
Boot
Referto“Changingthestartup
sequence”onpage102.
NetworkBoot
Referto“Bootsubmenu”onpage
103.
UEFI/LegacyBoot
Both
UEFIOnly
LegacyOnly
UEFI/LegacyBootPriority
UEFIFirst
LegacyFirst
CSMSupport(forUEFIOnly)
No
Y es
Selectsystembootcapability.
Both:Thesystemwillboot
followingtheUEFI/LegacyBoot
Prioritysetting.
UEFIOnly:Thesystemwillboot
fromtheUEFIenabledoperating
system.
LegacyOnly:Thesystemwillboot
fromanyoperatingsystemother
thantheUEFIenabledone.
Note:IfyouselectUEFIOnly,
thesystemcannotbootfromthe
bootabledevicesthatdonothavethe
UEFIenabledoperatingsystem.
CompatibilitySupportModule(CSM)
isrequiredforbootingthelegacy
operatingsystem.IfyouselectUEFI
Only,CSMSupportisselectable.
ForBothorLegacyOnlymood,CSM
Supportisnotselectable.
BootMode
Quick
Diagnostics
ScreenduringthePOST:
Quick:TheThinkPadLogoscreen
isdisplayed.
Diagnostics:Testmessagesare
displayed.
BeepatPOSTcompletion:
Quick:No.Soundsonerrorcases
only.
Diagnostics:Yes.Alwayssounds.
“Ctrl-S”promptforon-board
Ethernet:
Quick:No.
Diagnostics:Yes.
MemorytestingduringthePOST:
Quick:Quicktest(ornotest).
Diagnostics:Fulltest.
Testingotherdevicesduringthe
POST:
Quick:Minimumtest(ornotest).
104UserGuide