Asus Z9PE-D8 WS - Manual (Page 42)

2-20 Chapter 2: Hardware information
1. Power-on switch
The motherboard comes with a power-on switch that allows you to power
up or wake up the system. The switch also lights up when the system is
plugged to a power source indicating that you should shut down the system
and unplug the power cable before removing or plugging in any motherboard
component. The illustration below shows the location of the onboard power-
on switch.
2.6 Onboard Switches
Onboard switches allow you to fine-tune performance when working on a bare
or open-case system. This is ideal for overclockers and gamers who continually
change settings to enhance system performance.
2. Reset switch
Press the reset switch to reboot the system.