TAG MIL-BOOK 10 - Manual (Page 75)

Power Menu
The Power menu contains the power management settings that help save
system power.
Enable Power Management
Serves as the master control for the power management feature. A check
mark indicates enabled, while underline indicates disabled.
Max Performance
Balanced Power Saving
Max Power Saving
Customize
You can only select one of them. A check mark indicates enabled, while
underline indicates disabled.
Max
Performance
Allows maximum system performance but
shortest battery life.
5-18 Setup Configuration Utility (SCU)