ECS Motherboard User Manual page 43

SPK1: Speaker Header
Connect the cable from the PC speaker to the SPK1 header on
the motherboard.
Pin
1 Vcc5
3 GND
IR1: Infrared 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.
Pin
1 NC
3 VCC5
5 IRTX
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.
Chapter2: Motherboard Installation
Signal Pin Signal
2 NC
4 SPKR
Signal Pin Signal
2 KEY
4 GND
6 IRRX
19