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x pins UNKNOWN connector layout
x pins UNKNOWN connector
20 Pin Front panel USB, Speaker (Optional MIC) Proprietary
2..................20
1..................19
Viewed from the top (connector) side of the motherboard.
Motherboard Pin
Name		 Motherboard Pin
Number		 Direction Pin
Number		 Pin
Name		 Description
Data0- 1 -?-     Data - for USB port 0 (Bottom)
Data0+ 3 -?-     Data + for USB port 0 (Bottom)
Data1- 5 -?-     Data - for USB port 1 (top)
Data1+ 7 -?-     Data + for USB port 1 (top)
GND 9 -?-     Ground
GND 11 -?-     Ground
Left Audio In * 13 -?-     Input for rear Audio (L) *
Right Audio In * 15 -?-     Input for rear Audio (R) *
GND 17 -?-     Ground
MIC IN 19 -?-     Microphone Input (+)
Detect ** 2 -?-     See below **
Vcc 4 -?-     +5V for USB ~Both~
? 6 -?-     Unknown
Vcc 8 -?-     +5V for USB ~Both~
Ring * 10 -?-     Speaker Ring & RS Terminal *
Tip * 12 -?-     Speaker Tip & TS Terminal *
Detect ** 14 -?-     See below **
Keyed 16 -?-     No pin
GND 18 -?-     Ground
? 20 -?-     Unknown

   To use this board in a non-dell case w/o front USB & sound:

*  Jump (connect) pins 10-13 (L) and 12-15 (R) for rear sound.

** Jump (connect) pins 2-14 to avoid "Front panel USB cable not detected" error.

 
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