Asus M4A77D User Manual - Page 38

IEEE 1394a Connector

Page 38 highlights

8. CPU and chassis fan connectors (4-pin CPU_FAN, 3-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. CPU_FAN CHA_FAN GND CPU FAN PWR CPU FAN IN CPU FAN PWM GND +12V Rotation M4A77D M4A77D fan connectors DO NOT forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! DO NOT place jumper caps on the fan connectors. Only the 4-pin CPU fan supports the ASUS Q-Fan feature. 9. IEEE 1394a connector (10-1 pin IE1394_1) This connector is for an IEEE 1394a port. Connect the IEEE 1394a module cable to this connector, then install the module to a slot opening at the back of the system chassis. M4A77D TPA1GND TPB1+12V GND IE1394_1 PIN 1 TPA1+ GND TPB1+ +12V M4A77D IEEE 1394a Connector Never connect a USB cable to the IEEE 1394a connector. Doing so will damage the motherboard! The IEEE 1394a module is purchased separately. 1-28 Chapter 1: Product introduction

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CPU_FAN
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
M4A77D
M4A77D fan connectors
GND
+12V
Rotation
CHA_FAN
8.
CPU and chassis fan connectors (4-pin CPU_FAN, 3-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.
Only the 4-pin CPU fan supports the ASUS Q-Fan feature.
DO NOT forget to connect the fan cables to the fan connectors. Insufficient air flow inside
the system may damage the motherboard components. These are not jumpers! DO NOT
place jumper caps on the fan connectors.
9.
IEEE 1394a connector (10-1 pin IE1394_1)
This connector is for an IEEE 1394a port. Connect the IEEE 1394a module cable
to this connector, then install the module to a slot opening at the back of the system
chassis.
Never connect a USB cable to the IEEE 1394a connector. Doing so will damage the
motherboard!
The IEEE 1394a module is purchased separately.
M4A77D
M4A77D
IEEE 1394a Connector
PIN 1
TPA1-
GND
TPB1-
+12V
GND
TPA1+
GND
TPB1+
+12V
IE1394_1
Chapter 1: Product introduction
1-28