18
Installing the Motherboard
CASEOPEN: Chassis Intrusion Detect Header
Short Chassis cover is removed
Open Chassis cover is closed
Pin 1-2 Function
F_USB1~3: 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.
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.
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
FunctionPin Signal Name
SATA1~6: Serial ATA connectors
These connectors are used to support the new Serial ATA devices for the highest data
transfer rates (3.0 Gb/s), simpler disk drive cabling and easier PC assembly. It elimi-
nates limitations of the current Parallel ATA interface. But maintains register com-
patibility and software compatibility with Parallel ATA.
1
Ground 2 TX+
3 TX- 4 Ground
5 RX- 6 RX+
7 Ground - -
Pin Signal Name
Pin Signal Name
CD_IN: Analog audio input connector
Pin Signal Name Function
1 CD_L Left CD-in signal
2 GND Ground
3 GND Ground
4 CD_R Right CD-in signal
This detects if the chassis cover has been removed. This function needs a chassis
equipped with instrusion detection switch and needs to be enabled in BIOS.
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