Asus ROG STRIX X470-F GAMING Bios Manual page 33

PCIEX16_3 4X-2X Switch
This item allows you to set the PCIEX16_3 Mode. Configuration options: [Auto] [2X] [4X]
[Auto] Automatic configuration.
If PCIe mode M.2 device is inserted to M.2_2, switches PCIEx16_3 to X4
mode;
Else if no device or SATA mode M.2 device is inserted to M.2_2, whenever
PCIEx1_1 or PCIEx1_3 is occupied, switches PCIEx16_3 to X2 mode;
When a device (with bandwidth >= 4X) is inserted into PCIEX16_3 and no
device is inserted into both PCIEx1_1 and PCIEx1_3, switches PCIEX16_3
to X4 mode.
[2X] Forces PCIEX16_3 to run at X2 mode.
[4X] Forces PCIEX16_3 to run at X4 mode.
Asmedia USB 3.1 Controller
[Disabled] Disables the controller.
[Enabled] Enables the rear USB 3.1 controller.
RGB LED lighting
When system is in working state
This item allows you to turn the RGB LED lighting on or off when the system is in the
working state. Configuration options: [On] [Off]
When system is in sleep, hibernate or soft off states
This item allows you to turn the RGB LED lighting on or off when the system is in the
sleep, hibernate or soft off states. Configuration options: [On] [Off]
Intel LAN Controller
This item allows you to enable or disable the Intel LAN controllers. Configuration options:
[On] [Off]
The following item appears only when you set the Intel LAN Controller to [Enabled].
Intel LAN OPROM
This item allows you to enable or disable the PXE Option Rom of the Intel LAN
controller. Configuration options: [On] [Off]
Charging USB devices in Power State S5 [Disabled]
[Enabled] Charges USB devices even when the system is in Power State S5.
[Disabled] Disables this function.
Serial Port Configuration
The sub-items in this menu allow you to set the serial port configuration.
Serial Port 1 [On]
Allows you to enable or disable the serial port (COM).Configuration options: [On] [Off]
Change Settings [IO=3F8h; IRQ=4]
This item appears only when you set the Serial Port to [On] and allows you to select
the Serial Port base address. Configuration options: [IO=3F8h; IRQ=4] [IO=2F8h;
IRQ=3] [IO=3E8h; IRQ=4] [IO=2E8h; IRQ=3]
ROG STRIX X470-F GAMING BIOS Manual
33