Onboard Buttons, Switches And Leds - Gigabyte X570 AORUS MASTER User Manual

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Onboard Buttons, Switches and LEDs

BIOS Switches 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.
BBIOS_LED MBIOS_LED
S 3
S _
S 3
S _
Before setting the SB switch, be sure to turn off your computer and power supply.
S _
Status LEDs
1 2 3
The status LEDs show whether the CPU, memory, graphics card, and operating system are working properly
after system power-on. If the CPU/DRAM/VGA LED is on, that means the corresponding device is not working
normally; if the BOOT LED is on, that means you haven't entered the operating system yet.
S _
1 2 3
S _
S _
U
B_
U
B_
B_
S
S
BIOS_SW
B S S S
2
BIOS_SW
1
SB
2
1
SB
S F
B S S S
2
1
2
1
BIOS LED Indicators:
B_ S F
MBIOS_LED (The main BIOS is active)
BBIOS_LED (The backup BIOS is active)
B_
1
CPU: CPU status LED
DRAM: Memory status LED
VGA: Graphics card status LED
BOOT: Operating system status LED
CPU DRAM
1
VGA BOOT
- 23 -
B S S
S
1
1 2 3
S
1 2 3
U
1: Main BIOS (Boot from the main BIOS)
2: Backup BIOS (Boot from the backup BIOS)
_ U
1: Dual BIOS
2: Single BIOS
_
S _S
_
_
S _S
_
_
B_
USB 0_ B
Hardware Installation
B_
USB 0_ B
_S
_ _ 3
_ _ 3
_ _B
_ _B
S F_
B
S F_
B
F_USB3
F_USB3
F_
F_