Lenovo ThinkPad T430u User Manual page 114

Table 6. Startup menu items (continued)
Menu item
UEFI/Legacy Boot
UEFI/Legacy Boot Priority
Boot Mode
Option Key Display
98
User Guide
Selection
• Both
• UEFI Only
• Legacy Only
• UEFI First
• Legacy First
• Quick
• Diagnostics
• Disabled
• Enabled
Comments
Select system boot capability.
• Both: The system will boot
following the UEFI/Legacy Boot
Priority setting.
• UEFI Only: The system will boot
from the UEFI enabled operating
system.
• Legacy Only: The system will boot
from any operating system other
than the UEFI enabled one.
Note: If you select UEFI Only,
the system cannot boot from the
bootable devices that do not have the
UEFI enabled operating system.
Selects priority of boot options
between UEFI and Legacy.
Screen during POST:
• Quick: The ThinkPad logo screen
is displayed.
• Diagnostics: Test messages are
displayed.
Beep at POST completion:
• Quick: No. Sounds on error cases
only.
• Diagnostics: Yes. Always sounds.
"Ctrl-S" prompt for on-board
Ethernet:
• Quick: No.
• Diagnostics: Yes.
Memory testing during POST:
• Quick: Quick test (or no test).
• Diagnostics: Full test.
Testing other devices during POST:
• Quick: Minimum test (or no test).
• Diagnostics: Can perform
necessary testing for critical
devices.
Note: You also can enter the
Diagnostic mode by pressing Esc
during the POST.
If you select Disabled, then the
message "To interrupt normal startup,
press Enter." is not displayed during
the POST.