Asus M3A78-CM - Motherboard - Micro ATX Specifications download pdf (Page 34)

8. USB connectors (10-1 pin USB78, USB910, 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 specication 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 2.0 module is purchased separately.

9. CPU, Chassis, and Power Fan connectors (4 pin CPU_FAN, 3-pin CHA_FAN,

3_pin PWR_FAN)

The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or a total of

1A~2.22A (26.64W max.) at +12V. 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. Insufcient air ow inside

the system may damage the motherboard components. These are not jumpers! DO NOT

place jumper caps on the fan connectors.

Only the CPU FAN supports ASUS Q-Fan.

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Asus M3A78-CM - Motherboard - Micro ATX Specifications Page 34