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Chapter 2: Motherboard Installation
Pin
Signal Pin
Signal
1
NC
2
KEY
3
+5V
4
GND
5
IRTX
6
IRRX
Here is a list of USB pin assignments.
1. Locate the F_USB1~2 headers on the motherboard.
2. Plug the bracket cable onto the F_USB1~2 headers.
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.
IR1: Infrared Port 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.
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
1
VERG_FP_USBPWR0
2
VERG_FP_USBPWR0
3
USB_FP_P0(-)
4
USB_FP_P1(-)
5
USB)
6
USB)
7
GROUND
8
GROUND
9
KEY
10 GROUND
F_USB1~2: Front Panel USB Headers
The motherboard has USB ports installed on the rear edge I/O port array. Addition-
ally, some computer cases have USB ports at the front of the case. If you have this
kind of case, use auxiliary USB headers F_USB1~2 to connect the front-mounted
ports to the motherboard.
SPDIFO1: SPDIF out header
This is an optional header that provides an S/PDIF (Sony/Philips Digital Interface)
output to digital multimedia device through optical fiber or coaxial connector.
Pin
Signal
1
SPDIF
2
+5VA
3
Key
4
GND
