INSTALLATIONS
CN4: 10/100 RJ-45 and USB1/2 Ports
CN5: 1394 Connector
J3: SPDIF Out Connector
CN6: GbE RJ-45 and USB3/4 Ports
CN7: Audio Connector
The audio connector, from top to bottom, is composed of Line in, Line
out and Microphone jacks.
PWR1: ATX Power Supply Connector
Signal Name Pin # Pin # Signal Name
3.3V 13 1 3.3V
-12V 14 2 3.3V
Ground 15 3 Ground
PS-ON 16 4 +5V
Ground 17 5 Ground
Ground 18 6 +5V
Ground 19 7 Ground
-5V 20 8 Power good
+5V 21 9 5VSB
+5V 22 10 +12V
+5V 23 11 +12V
Ground 24 12 +3.3V
14 MB740 User’s Manual
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