Lenovo ThinkPad T420 (English) User Guide - Page 203
Enabled, Maximum Performance, Battery Optimized, Disabled, Balanced, Normal, Power
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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 Select the mode of Intel SpeedStep technology at runtime. Mode for AC • Maximum Performance • Battery Optimized Mode for Battery Maximum Performance: Always highest speed Battery Optimized: Always lowest speed • Maximum Performance • Battery Optimized Disabled: No runtime support, lowest speed Scheme for AC • Maximize Performance • Balanced Scheme for Battery This select a thermal management scheme to use. Maximize Performance: Reduces CPU throttling • Maximize Performance • Balanced Balanced: Balances sound, temperature and performance • High Performance • Normal • Silent • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled 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 Chapter 8. Advanced configuration 185