Onboard Leds; Dimm Leds; Gpu Led; Pcie X16 Slot Leds - MSI X370 GAMING PRO CARBON Manual

Onboard LEDs

DIMM LEDs

These LEDs indicate the memory modules are installed.

GPU LED

This LED indicates the CPU' s iGPU is not detected and you need to install a graphic
card.

PCIe x16 slot LEDs

These LEDs indicate the PCIe x16 slots status.

EZ Debug LED

These LEDs indicate the debug status of the motherboard.
40
Onboard LEDs
DIMM LEDs
GPU LED
LED Color
Red
White
PCI_E2 LED
PCI_E4 LED
PCI_E6 LED
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.
PCIe slot status
x16 mode
x8, x4, x1 mode