Lenovo ThinkPad Edge E525 - Manual (Page 119)

Table 4. Config menu items (continued)
Menu item Submenu item Selection Comments
Change to “F1–F12 keys” • Default
• Legacy
If you select “Default,”
pressing F1–F12 initiates
special functions illustrated
on each key. If you select
“Legacy,” you can use
F1–F12 as standard
function keys.
Boot Display Device • ThinkPad LCD
• Analog (VGA)
• Digital on ThinkPad
Select the display device
that is to be activated at
boot time. This selection
is effective for boot time,
password prompt, and
ThinkPad Setup.
Graphics Device • Integrated Graphics
• Switchable Graphics
The Integrated Graphics
mode provides longer
battery life, while the
Switchable Graphics mode
enhances performance.
Display
OS Detection for Switchable
Graphics • Disabled
• Enabled
If you select “Enabled,” the
system UEFI automatically
switches the graphics
device setting to Switchable
Graphics mode if the
operating system supports
this feature, and to
Integrated Graphics mode if
the operating system does
not support this feature.
Optical Drive Speed • High Performance
• Normal
• Silent
Set the optical drive speed.
CPU Power Management • Disabled
• Enabled
Unless this power-saving
feature is disabled, it
stops the processor clock
automatically when there
is no system activity. You
usually do not need to
change this function.
Power
PCI Express Power
management • Disabled
• Enabled
Enables or disables a
feature that automatically
adjusts power management
when there is no PCI
Express activity. You
usually do not need to
change this function.
Chapter 7 . Advanced configuration 101