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2.7 Smart Switches
e motherboard has four smart switches: Power Switch, Reset Switch, Clear CMOS
Switch and one BIOS Selection Switch, allowing users to quickly turn on/o the
system, reset the system, clear the CMOS values or boot from dierent BIOS.
Power Switch
(PWRBTN)
(see p.6, No. 20)
Power Switch allows users
to quickly turn on/o the
system.
Reset Switch
(RSTBTN)
(see p.6, No. 21)
Reset Switch allows
users to quickly reset the
system.
Clear CMOS Switch
(CLRCBTN)
(see p.9, No. 14)
Clear CMOS Switch
allows users to quickly
clear the CMOS values.
BIOS Selection Switch
(BIOS_SEL1)
(see p.6, No. 17)
BIOS Selection Switch allows
the system to boot from either
BIOS A or BIOS B.
is function is workable only when you power o your computer and unplug the
power supply.
A B
is motherboard has two BIOS chips, a primary BIOS (BIOS_A) and a backup BIOS
(BIOS_B), which enhances the safety and stability of your system. Normally, the
system will work on the primary BIOS. However, if the primary BIOS is corrupted
or damaged, just ip the BIOS Selection Switch to “B”, then the backup BIOS will
take over on the next system boot. Aer that, use “Secure Backup UEFI” in the UEFI
Setup Utility to duplicate a working copy of the BIOS les to the primary BIOS to
ensure normal system operation. For safety issues, users are not able to update the
backup BIOS manually. Users may refer to the BIOS LEDs (BIOS_A_LED or BIOS_
B_LED) to identify which BIOS is currently activated.
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