Onboard Leds - Asus ROG STRIX B450-I Manual

1.1.7
1. Standby Power LED (SB_PWR)
The motherboard comes with a standby power LED. The LED lights up to indicate that
the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should
shut down the system and unplug the power cable before removing or plugging in any
motherboard component. The illustration below shows the location of the onboard LED
ROG STRIX B450-I GAMING Standby power LED
2. Q LEDs (CPU, DRAM, VGA, BOOT)
Q LEDs check key components (CPU, DRAM, VGA card, and booting devices) in
sequence during motherboard booting process. If an error is found, the corresponding
LED remains lit until the problem is solved. This user-friendly design provides an
intuitive way to locate the root problem within seconds.
ROG STRIX B450-I GAMING CPU/ DRAM/
BOOT_DEVICE/ VGA LED
ROG STRIX B450-I GAMING
E14337_ROG_STRIX_B450-I_GAMING_UM.indb 9

Onboard LEDs

The order which the LEDs light up may vary per CPU.
The Q LEDs provide the most probable cause of an error code as a starting point for
troubleshooting. The actual cause may vary from case to case.
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