Fan Leds; Pcie X16 Slot Leds - MSI X299M GAMING PRO CARBON AC Quick Start Manual

Fan LEDs

These LEDs indicate the fan control mode.

PCIe x16 slot LEDs

These LED indicate the PCIe x16 slots status.
30
Onboard LEDs
PUMP_FAN1 LED
CPU_FAN1 LED
PCI_E1 LED
PCI_E2 LED
PCI_E3 LED
LED Color Fan control mode
Red PWM mode
Green DC mode
LED Color PCIe slot speed status
Red x16
White x8, x4, x1