MSI H510M PLUS V3 PRO H510M-B Benutzerhandbuch Seite 41

EZ Debug LED
These LEDs indicate the debug status of the motherboard.
CPU - indicates CPU is not detected or fail.
DRAM - indicates DRAM is not detected or fail.
VGA - indicates GPU is not detected or fail.
BOOT - indicates the booting device is not detected or fail.
38