User Guide
ASUS X99-M WS/SE
1-15
Chapter 1
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.
• 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
®
OS environment, the EPU function will be
activated after the next system bootup.
• You may change the EPU settings in BIOS setup program and enable the EPU
function at the same time. However, the system will use the last setting you have
made.