Lenovo ThinkPad T520 User Manual page 228

Table 8. Config menu items (continued)
Menu item
Beep and Alarm
210
User Guide
Submenu item
Optical Drive Speed
CPU Power Management
PCI Express Power
Management
Power On with AC Attach
Power Control Beep
Low Battery Alarm
Password Beep
Selection
• Balanced
• High Performance
• Normal
• Silent
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
Comments
Balanced: Balances
sound, temperature and
performance
Note: Each scheme affects
fan sound, temperature,
and performance.
Set the speed of optical
drive to the desired
performance.
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.
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