HP Compaq dx6100 Series Technical Reference Manual page 148

Power and Signal Distribution
Power Button/LED, HD LED
Header P5 (USDT, SFF, ST)
HD LED Cathode 1
HD LED Anode 3
Chassis ID0 9
Therm Diode A 13
UART1 DCD- 1
UART1 RX DATA 3
UART1 TX DATA 5
UART1 DTR 7
Hood Lock 1
NOTE:
No polarity consideration required for connection to speaker header P6.
Figure 7-10. Header Pinouts
7-16
2 PS LED Cathode
4 PS LED Anode
GND5
6 Pwr Btn
8 GND
10 Chassis ID1
GND 11 12 NC
14 Therm Diode C
CD ROM Audio Header
1 Audio (Left Channel)
2 Ground
3 Ground
4 Audio (right channel)
Serial Port A
Header P54
2 UART1 DSR-
4 UART1 RTS-
6 UART1 CTS-
8 UART1 RI-
GND 9 10 Comm A Detect-
Hood Lock
Header P124
2 Coil Conn
4 +12V
GND 5 6 Hood Unlock
361834-001
Power Button/LED, HD LED
Header P5 (MT, CMT)
HD LED Cathode 1
HD LED Anode 3
GND5
M Reset 7
+5 VDC 9
NC 11
GND 13
Chassis ID2 15
Chassis ID0 17
CD ROM Audio
Headers P7, P11
Serial Port B
Header P52
UART2 DTR- 1
UART2 CTS- 3
UART2 TX DATA 5
GND 7
+5.0V 9
UART2 RTS- 11
UART2 DCD- 13
+12V 15
Hood Sense
Header P125
2 PS LED Cathode
4 PS LED Anode
6 Pwr Btn
8 GND
10 NC
12 GND
16 +5 VDC
18 Chassis ID1
2 UART2 RX DATA
4 UART2 DSR-
6 UART2 RI-
8 GND
10 +3.3V aux
12 Comm B Detect
14 -12V
1 Hood SW Detect
2 GND
3 Hood Sensor
Technical Reference Guide