Lenovo ThinkPad X1 User Manual page 126

Table 4. Config menu items (continued)
Submenu item
CPU Power Management
PCI Express Power Management
Power On with AC Attach
Disable Built-in Battery
Beep and Alarm
Power Control Beep
Low Battery Alarm
Password Beep
Keyboard Beep
110
User Guide
Selection
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Yes
• No
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Enabled
• Disabled
Comments
Enable or disable the power saving
feature that stop the microprocessor
clock automatically when there are no
system activities. Normally, it is not
necessary to change the setting.
Enable or disable a feature that
automatically adjusts power
management when there is no PCI
Express activity. Normally, it is not
necessary to change the setting.
Enable or disable a feature that
powers on the system when AC is
attached.
If you select "Enabled," the system
is powered on when AC is attached.
When the system is in hibernate state,
the system resumes.
If you select "Disabled," the system is
not powered on nor resumed when
AC is attached.
Temporarily disable battery for
servicing the system. After selecting
this item, the system will be
automatically powered off. The
system is then ready to be serviced.
Note: The ac power adapter must
be disconnected from the system to
perform this operation.
The battery will be automatically
re-enabled when the ac power
adapter is reconnected to the system.
If this function is enabled, a beep
sounds when the computer enters a
power management mode, when it
resumes operational mode, and when
the ac power adapter is connected or
disconnected.
Enable or disable the low battery
alarm.
Enable this option to have a beep
sound when the system is waiting for
a power-on, hard disk, or supervisor
password. Different beeps will be
sounded when the entered password
matches or does not match the
configured password.
Enable or disable keyboard
beep when unmanageable key
combinations are pressed.