Asus SABERTOOTH990FXGEN3, 990FX R20 manual Onboard LEDs, Post State LEDs, Standby Power LED

1.2.8Onboard LEDs

1.POST State LEDs

The POST State LEDs provide the status of these key components during POST (Power-On-Self Test): CPU, memory modules, VGA card, and hard disk drives. If an error is found, the critical component’s LED stays lit up until the problem is solved.

2.Standby Power LED

The motherboard comes with a standby power LED. The green 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.

Chapter 1

1-28 Chapter 1: Product introduction