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17) F_USB1/F_USB2 (USB Headers, Yellow)
The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
Definition Power (5V) Power (5V) USB DXUSB DYUSB DX+ USB DY+ GND GND No Pin NC
1 2 3 4 5 6 7 8 9 10
• Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header. • Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord from the power outlet to prevent damage to the USB bracket.
18) CI1 (Chassis Intrusion Header)
This motherboard provides a chassis detection feature that detects if the chassis cover has been removed. This function requires a chassis with chassis intrusion detection design.
Pin No. 1 2
Definition Signal GND
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