Gigabyte GA-Z87X-UD7 TH - Onboard Buttons, Switches, and Leds

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Hardware Installation
1-8 Onboard Buttons, Switches, and LEDs
BIOS Switch and BIOS LED Indicators
TheBIOSswitch(BIOS_SW)allowsuserstoeasilyselectadifferentBIOSforbootuporoverclocking,helpingto
reduce BIOS failure during overclocking. The SB switch allows enabling or disabling of the Dual BIOS function.
TheLEDindicator(MBIOS_LED/BBIOS_LED)showswhichBIOSisactive.
MBIOS_LED(ThemainBIOSisactive)
BBIOS_LED(ThebackupBIOSisactive)
BIOS LED Indicators:
2:BackupBIOS(BootfromthebackupBIOS)
1:MainBIOS(BootfromthemainBIOS)
BIOS_SW (BIOS Switch)
F_USB30
F_U
B_ 
F_  F_ 

_
B
BS_
B
SB_
B
_S

S_
_
B
_U
_
B


 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3 4 5
 S3
BSSS
U
 
1 2 3
4
 
1 2 3 4
 
1 2 3
4
 
1 2 3 4
 __ 3
F_USB3F
F_USB30
F_U
B_ 
F_  F_ 

_
B
BS_
B
SB_
B
_S

S_
_
B
_U
_
B


 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3 4 5
 S3
BSSS
U
 
1 2 3
4
 
1 2 3 4
 
1 2 3
4
 
1 2 3 4
 __ 3
F_USB3F
2: Single BIOS
1: Dual BIOS
SB (SB Switch)
BIOS_SWSB
BBIOS_LED
MBIOS_LED
Quick Buttons
This motherboard has 3 quick buttons: power button, reset button and clear 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 BIOS
conguration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 using
the clear CMOS button.
• NOTE: Do not use the clear CMOS button when the system is on, or the system may shutdown
and data loss or damage may occur.
• Aftersystemrestart,gotoBIOSSetuptoloadfactorydefaults(selectLoadOptimizedDefaults)or
manuallyconguretheBIOSsettings(refertoChapter2,"BIOSSetup,"forBIOScongurations).
CMOS_SW
PW_SW
RST_SW
1 2
1 2
F_USB30
F_U
B_ 
F_  F_ 

_
B
BS_
B
SB_
B
_S

S_
_
B
_U
_
B


 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3 4 5
 S3
BSSS
U
 
1 2 3
4
 
1 2 3 4
 
1 2 3
4
 
1 2 3 4
 __ 3
F_USB3F
F_USB30
F_U
B_ 
F_  F_ 

_
B
BS_
B
SB_
B
_S

S_
_
B
_U
_
B


 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3 4 5
 S3
BSSS
U
 
1 2 3
4
 
1 2 3 4
 
1 2 3
4
 
1 2 3 4
 __ 3
F_USB3F
1 2
1 2