User`s guide

Motherboard User’s Guide

1 Locate the USB3/USB4 header on the motherboard.

2 Plug the bracket cable onto the USB3/USB4 header.

3 Remove a slot cover from one of the expansion slots on the system

chassis. Install an extension bracket in the opening. Secure the

extension bracket to the chassis with a screw.

Pin Signal Pin Signal

1 USB DUA L V CC 2 USB DUA L V CC

3 USBP4- 4 USBP5-

5 USBP4+ 6 USBP5+

7 GROUND 8 GROUND

9 KEY 10 USBOC45#

IR1: Infrared Header

The infrared port allows the wireless exchange of information between your com-

puter and similarly equipped devices such as printers, laptops, Personal Digital

Assistants (PDAs), and other computers.

Here is a list of headers USB3/USB4 pin assignments.

1 Locate the infrared port-IR1 header on the motherboard.

2 If you are adding an infrared port, connect the ribbon cable from the

port to the IR1 header and then secure the port to an appropriate

place in your system chassis.

Pin Signal Pin Signal

1NC2KEY

3+5V 4GND

5 IRTX 6 IRRX

SPK1: Speaker Header

Connect the cable from the PC speaker to the SPK1 header on the motherboard.

Pin Signal

1Sigal

2Key

3GND

4VCC