22
Installing the Motherboard
USB1/2: Front Panel USB headers
The motherboard has four USB ports installed on the rear edge I/O port array. Additionally,
some computer cases have USB ports at the front of the case. If you have this kind of case,
use auxiliary USB connector to connect the front-mounted ports to the motherboard.
1 USBPWR Front Panel USB Power
2 USBPWR Front Panel USB Power
3 USB_FP_P0 (-) USB Port 0 Negative Signal
4 USB_FP_P1 (-) USB Port 1 Negative Signal
5 USB_FP_P0 (+) USB Port 0 Positive Signal
6 USB_FP_P1 (+) USB Port 1 Positive Signal
7 GND Ground
8 GND Ground
9 Key No pin
10 NC Not connected
Pin Signal Name Function
IR1: Infrared port
The mainboard supports an Infrared (IR1) data port. Infrared ports allow the wireless
exchange of information between your computer and similarly equipped devices such as
printers, laptops, Personal Digital Assistants (PDAs), and other computers.
SATA1~4: Serial ATA connectors
These connectors are used to support the new Serial ATA devices for the highest date
transfer rates (3.0 Gb/s), simpler disk drive cabling and easier PC assembly. It eliminates
limitations of the current Parallel ATA interface. But maintains register compatibility and
software compatibility with Parallel ATA.
CD_IN1: CD Audio Input connector
Pin Signal Name Function
1 Not Assigned Not assigned
2 Key No pin
3 +5V IR Power
4 GND Ground
5 IR_TX IrDA serial output
6 IR_RX IrDA serial input
1 Ground 2 TX (+)
3 TX (-) 4 Ground
5 RX (-) 6 RX (+)
7 Ground - -
Pin Signal Name Pin Signal Name
Pin Signal Name Function
1 CD in_R CD In right channel
2 GND Ground
3 GND Ground
4 CD in_L CD In left channel
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