ASROCK X99 Extreme4/3.1 Manual De Instrucciones página 28

2.7 Smart Switches
he motherboard has a Clear CMOS Switch, allowing users to clear the CMOS
values.
Clear CMOS Switch
(CLRCBTN)
(see p.3, No. 14)
his function is workable only when you power of your computer and unplug the power
supply.
26
Clear CMOS Switch
allows users to quickly
clear the CMOS values.