Lenovo ThinkPad T420 4236 User Manual page 203

Table 8. Config menu items (continued)
Power ®
Intel SpeedStep
technology (Intel
SpeedStep mounted
models only)
Adaptive Thermal
Management
Optical Drive Speed
CPU Power Management
PCI Express Power
Management
Power On with AC Attach
• Disabled
• Enabled
Mode for AC
• Maximum Performance
• Battery Optimized
Mode for Battery
• Maximum Performance
• Battery Optimized
Scheme for AC
• Maximize Performance
• Balanced
Scheme for Battery
• Maximize Performance
• Balanced
• High Performance
• Normal
• Silent
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
Chapter 8
Select the mode of Intel
SpeedStep technology at
runtime.
Maximum Performance:
Always highest speed
Battery Optimized: Always
lowest speed
Disabled: No runtime
support, lowest speed
This select a thermal
management scheme to
use.
Maximize Performance:
Reduces CPU throttling
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
.
Advanced configuration
185