Lenovo ThinkPad T420 (English) User Guide - Page 200

Always On USB Charge in, Battery, Wake On LAN is

Page 200 highlights

Table 8. Config menu items (continued) USB Ethernet LAN Option ROM • Disabled • Enabled USB UEFI BIOS Support • Disabled • Enabled Always On USB • Disabled • Enabled Always On USB Charge in • Disabled off mode • Enabled If you select "AC and Battery", Wake On LAN is enabled with any power sources. Note: AC is required with magic packet type Wake On LAN. Note: Wake On LAN function does not work when a hard disk password is set. Load the Ethernet LAN Option ROM to enable startup from an integrated network device. Enable or disable boot support for USB diskette, USB memory key, and USB optical drive. If you select "Enabled", the external USB devices can be charged via USB ports even when the system is in low power mode (standby, hibernate, or power-off). If you select "Enabled", the Always On USB connector enables you to charge some devices, such as iPod and iPhone and BlackBerry smartphones. Note: If you want to charge these devices when your computer is in hibernation mode or powered off, you will need to open the Power Manager program and configure corresponding settings to enable the Always On USB connector function. For details about how to enable the Always On USB connector function, refer to the online help of the Power Manager program. 182 User Guide

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Table 8. Config menu items (continued)
If you select “AC and
Battery”, Wake On LAN is
enabled with any power
sources.
Note:
AC is required with
magic packet type Wake
On LAN.
Note:
Wake On LAN
function does not work
when a hard disk password
is set.
Ethernet LAN Option ROM
Disabled
Enabled
Load the Ethernet LAN
Option ROM to enable
startup from an integrated
network device.
USB UEFI BIOS Support
Disabled
Enabled
Enable or disable boot
support for USB diskette,
USB memory key, and USB
optical drive.
Always On USB
Disabled
Enabled
If you select “Enabled”, the
external USB devices can
be charged via USB ports
even when the system is in
low power mode (standby,
hibernate, or power-off).
USB
Always On USB Charge in
off mode
Disabled
Enabled
If you select “Enabled”, the
Always On USB connector
enables you to charge
some devices, such as iPod
and iPhone and BlackBerry
smartphones.
Note:
If you want to charge
these devices when your
computer is in hibernation
mode or powered off, you
will need to open the Power
Manager program and
configure corresponding
settings to enable the
Always On USB connector
function.
For details
about how to enable the
Always On USB connector
function, refer to the online
help of the Power Manager
program.
182
User Guide