Asus ROG STRIX Z390-F GAMING - Onboard Leds

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Chapter 1: Product Introduction
Chapter 1
1.1.8 Onboard LEDs
1. Q LEDs (BOOT_LED, VGA_LED, DRAM_LED, CPU_LED)
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.
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.
2. Memory LED (Mem_LED)
TheMem_LEDwilllightupandremainlitwhiletheMemOK!IIfunctionisinuse.When
there-trainingiscomplete,theMem_LEDwillturnoff.