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Chapter 1: Product introduction
4. CPU and chassis fan connectors (3-pin CPU_FAN, 4-pin CHA_FAN)
Connect the fan cables to the fan connectors on the motherboard, ensuring that the
black wire of each cable matches the ground pin of the connector.
Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside the
system may damage the motherboard components. These are not jumpers! Do not place
jumper caps on the fan connectors!
C8HM70-I/HDMI CPU fan connector
CPU_FAN
GND
+12V
Rotation
C8HM70-I/HDMI
CHA_FAN
GND
CHA FAN PWR
CHA FAN IN
CHA FAN PWM
5. USB connectors (10-1 pin USB1112)
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 specication that supports up to
480 Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB module cable is purchased separately.
C8HM70-I/HDMI USB2.0 connector
PIN 1
USB+5V
USB_P11-
USB_P11+
GND
NC
USB+5V
USB_P12-
USB_P12+
GND
USB1112
C8HM70-I/HDMI