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J11: Power LED Connector
Pin # Signal Name
1 Vcc
2 NC
3 PLED
J12: System Function Connector
Signal Name Pin Pin Signal Name
Ground 1 2 PS_ON
5V 3 4 HDD Active
Ground 5 7 Reset
ATX power on switch: Pins 1-2
HDD LED: Pins 3-4
Reset switch: Pins 5-6
J13: USB5/6 Port Pin Header
Signal Name Pin Pin Signal Name
Vcc 1 5 Ground
D- 2 6 D+
D+ 3 7 D-
Ground 4 8 Vcc
J14: Speaker Connector
The J14 connector supports 2W/8ohm stereo audio power amplifier.
Pin # Signal Name
1 Audio L
2 Ground
3 Ground
4 Audio R
J15: Compact Flash Connector
J16, J17: Serial ATA Connectors
MI920 User’s Manual 19