13
Chapter 2: Motherboard Installation
Here is a list of USB pin assignments.
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.
SIR1: Infrared Port Header
The infrared port allows the wireless exchange of information between your
computer and similarly equipped devices such as printers, laptops, Personal
Digital Assistants (PDAs), and other computers.
1. Locate the infrared port-
SIR1
header on the motherboard.
2. If you are adding an infrared port, connect the ribbon cable from the port
to the SIR1 header and then secure the port to an appropriate place in
your system chassis.
Pin
Signal
Pin
Signal
1
VERG_FP_USBPWR0
2
VERG_FP_USBPWR1
3
USB_FP_P0(-)
4
USB_FP_P1(-)
5
USB)
6
USB)
7
GROUND
8
GROUND
9
KEY
10
USB_FP_OC0
Pin
Signal
Pin
Signal
1
NC
2
KEY
3
+5V
4
GND
5
IRTX
6
IRRX
