Asus X99-S User Manual page 34

5. EPU switch
Enable this switch to automatically detect the current PC loadings and intelligently
moderate the power consumption.
Enable this switch when the system is powered off.
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The EPU LED (O2LED3) near the EPU switch lights up when you enable the EPU
switch. Refer to section 1.2.8 Onboard LEDs for the exact location of the EPU LED.
If you enable this switch under Windows
activated after the next system bootup.
You may change the EPU settings in the software application or BIOS setup program
and enable the EPU function at the same time. However, the system will use the last
setting you have made.
OS environment, the EPU function will be
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Chapter 1: Product introduction