Gigabyte GA-Z77X-UD5H WIFI User Manual - Page 23

Onboard Buttons, Switches and LEDs, Quick Buttons, BIOS Switch and BIOS LED Indicators

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1-8 Onboard Buttons, Switches and LEDs BIOS Switch and BIOS LED Indicators The BIOS switch (SW4) allows users to easily select a different BIOS for boot up or overclocking, helping to reduce BIOS failure during overclocking. The LED indicator (MBIOS_LED/BBIOS_LED) shows which BIOS is active. BIOS Switch: SW4 1: Main BIOS (Boot from the main BIOS) 3: Backup BIOS (Boot from the backup BIOS) BIOS LED Indicators: BBIOS_LED (The backup BIOS is active) MBIOS_LED (The main BIOS is active) SS 33 BB SS SS SS 1 12 23 3 11 Quick Buttons This motherboard has 3 quick buttons: power button, reset button and clearing CMOS bu1 tton. The power button and reset bu1t1t22o33n allow users to quickly turn on/off or reset the computer in an open-case environment when they want to change hardware components or conduct hardware testing. Use this button to clear the CMOS values (e.g. date information and BIOS configuration) and reset the CMOS values to factory defaults when needed. PW_SW: Power button 1 1 RST_SW: Reset button CMOS_SW: Clear CMOS Button BB__ SS BB SS SS 1 1 __SS SS 11 22 33 1 12 23 3 11 FF__ FF__UUSSBB3300 FF__ UU •• Always turn off your computer and unplug the power cord from the power outlet before clearing the CMOS values. •• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or manually configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS configurations). - 23 - Hardware Installation

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- 23 -
Hardware Installation
1-8
Onboard Buttons, Switches and LEDs
Quick Buttons
This motherboard has 3 quick buttons: power button, reset button and clearing CMOS button. The power button
and reset button allow users to quickly turn on/off or reset the computer in an open-case environment when they
want to change hardware components or conduct hardware testing. Use this button to clear the CMOS values
(e.g. date information and BIOS configuration) and reset the CMOS values to factory defaults when needed.
PW_SW:
Power button
RST_SW:
Reset button
CMOS_SW:
Clear CMOS Button
•
Always turn off your computer and unplug the power cord from the power outlet before clearing
the CMOS values.
•
After system restart, go to BIOS Setup to load factory defaults (select Load Optimized
Defaults) or manually configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS
configurations).
BIOS Switch and BIOS LED Indicators
The BIOS switch (SW4) allows users to easily select a different BIOS for boot up or overclocking, helping to reduce
BIOS failure during overclocking. The LED indicator (MBIOS_LED/BBIOS_LED) shows which BIOS is active.
3: Backup BIOS (Boot from the backup BIOS)
1: Main BIOS (Boot from the main BIOS)
BIOS Switch:
MBIOS_LED (The main BIOS is active)
BBIOS_LED (The backup BIOS is active)
BIOS LED Indicators:
SW4