User Manual
ASUS PRIME X470-PRO
3-15
Chapter 3
Hot Plug
These items allow you to enable/disable SATA Hot Plug Support. Conguration options:
[Disabled] [Enabled]
3.6.5 Onboard Devices Conguration
The items in this menu allow you to switch between PCIe Lanes and congure onboard
devices.
HD Audio Controller
This item allows you to use the Azalia High Denition Audio Controller. Conguration options:
[Disabled] [Enabled]
PCIEX16_1 Bandwidth
This item displays on AMD Ryzen™ with Radeon™ Vega Graphics/ 7th Generation A-Series
processors.
[X8 Mode] The PCIe x16_1 slot runs at x8 mode.
[PCIe RAID Mode] The Hyper M.2 x16 card and other add-on M.2 devices all run at x4
mode, which allows you to create a PCIe RAID array.
Use PCIe RAID Mode when installing the Hyper M.2 x16 card or other M.2 adapter cards.
Installing other devices when using PCIe RAID Mode may cause your PC to fail to boot up.
PCIEX16_2 Bandwidth
This item displays on AMD Ryzen™ 2nd Generation/ Ryzen™ 1st Generation processors.
[X8 Mode] The PCIe x16_2 slot runs at x8 mode.
[PCIe RAID Mode] The Hyper M.2 x16 card and other add-on M.2 devices all run at x4
mode, which allows you to create a PCIe RAID array.
PCIEX16_3 4X-2X Switch
This item allows you to set the PCIEX16_3 Mode. Conguration options: [Auto] [2X] [4X]
[Auto] Automatic conguration.
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.
[X2] Forces PCIEX16_3 to run at X2 mode.
[X4] Forces PCIEX16_3 to run at X4 mode.
Asmedia USB 3.1 Controller
Enables or disables the rear USB 3.1 controller. Conguration options: [Disabled] [Enabled]