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Installing the Motherboard
AUX_IN: Auxliary In header (optional)
Pin Signal Name Function
1 AUX_L AUX In left channel
2
GND Ground
3
GND Ground
4
AUX_R AUX In right channel
SATA1/2/3/4: Serial ATA connectors
These connectors are use to support the new Serial ATA devices for the highest date transfer
rates (150 MB/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.
Pin Signal Name Function
1 Ground 2 TX+
3 TX- 4 Ground
5 RX- 6 RX+
7 Ground - -
Pin Signal Name
Pin Signal Name
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 coxial connector.
Pin Signal Name Function
1 SPDIF SPDIF digital output
2 +5VA 5V analog power
3 Key No pin
4 GND Ground
Pin Signal Name
Function
USB3/4: Front Panel USB header
The motherboard has four USB ports installed on the rear edge I/O port array. Additionally,
there are two USB headers onboard. Use the auxiliary USB headers 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 USB_FP_OC0 Overcurrent signal
Pin Signal Name Function
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