User Manual

10
ASUS X99 Series Feature Manual
EPU (Energy Processing Unit)
EPU is a real-time system power-saving chip that automatically detects the current
system load and intelligently moderates power usage. It offers a total system-wide energy
optimization, reduces fan noise, and extends the lifespan of your hardware components.
Using EPU
• When you enable Congured Max CPU Power for advanced energy saving condition,
the CPU frequency may display 800 MHz in the Windows
®
OS information of your
computer. However, the true CPU frequency varies depending on the wattage that you
manually set. You can adjust the CPU wattage from the lowest base on your preferred
default value.
• Congured Max CPU Power may decrease the total power delivery to the CPU and
affects the CPU performance under system heavy load. To restore your system to its
default settings, reboot your computer.
Click to
select a fan
profile
Check the
checkbox to mute
Click to select
USB Controller
Power behavior
Click
or
to adjust the
configured Max
CPU Power
Click to configure the settings
in High Performance mode
Click to configure the settings
in Max Power Saving mode
Click to configure the
settings in Away mode
Tick to select a setting for
Voltage Decrement
Click to undo
the adjustments
Click to enable the
default settings
Click to apply
the adjustments