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F_USB1~2: Front Panel USB headers
The motherboard has two USB 2.0 headers supporting four USB 2.0 ports. Addition-
ally, 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.
Unlike F_USB2 in this mainboard, F_USB1 supports EZ Charger technology, pro-
vides 3 times current than general USB port in off mode for USB devices. It is useful
and excellent, especially for the iPhone, iPad and iPod touch devices that need a
large amount of current for faster recharging within less time.
Pin
Signal Name
1
USBPWR
2
USBPWR
3
USB_FP_P0-
4
USB_FP_P1-
5
USB_FP_P0+
6
USB_FP_P1+
7
GND
8
GND
9
Key
10
NC
Please make sure that the USB cable has the same pin assignment as
indicated above. A different pin assignment may cause damage or system
hang-up.
COM: Onboard serial port header
Connect a serial port extension bracket to this header to add a serial port to your
system.
Pin
Signal Name
1
DCDB
2
SINB
3
SOUTB
4
DTRB
5
GND
6
DSRB
7
RTSB
8
CTSB
9
RI
10
Key
Function
Front Panel USB Power
Front Panel USB Power
USB Port 0 Negative Signal
USB Port 1 Negative Signal
USB Port 0 Positive Signal
USB Port 1 Positive Signal
Ground
Ground
No pin
Not connected
Function
Data Carrier Detect
Serial Input
UART B Serial Output
UART B Data Terminal Ready
Ground
Data Set Ready
RART B Request to Send
Clear to Send
Ring Indicator
No pin
Installing the Motherboard
17
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