HP dc73 Service Reference Guide - HP Compaq dc7800 Business PC - Page 210
-Pin MicroFit Power (CMT, SFF), 4-Pin Power (for CPU), 6-Pin Power (for CPU) (CMT, SFF
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24-Pin MicroFit Power (CMT, SFF) Connector 24 12 Pin Signal 1 +5 Vaux 2 GND 3 +5V 4 +5V 5 PS_ON 6 GND 13 1 Pin Signal 7 PWRGD 8 +3.3V 9 +3.3V 10 Tach 11 GND 12 Fan-CMD Front Pin Signal 13 +12V 14 +5V Sense 15 GND 16 +5V 17 +5V 18 +3.3V Pin Signal 19 GND 20 +3.3V 21 Sense 22 +3.3V 23 +3.3V 24 GND 4-Pin Power (for CPU) Connector and Icon Pin Signal 1 GND 2 GND 3 +12V CPU 4 -12V CPU 6-Pin Power (for CPU) (CMT, SFF) Connector and Icon 4 6 Pin Signal 1 GND 2 GND 3 GND 4 12V CPU 5 12V CPU 6 +12V 198 Appendix A Connector Pin Assignments
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24-Pin MicroFit Power (CMT, SFF)
Connector
24
12
13
1
Front
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
1
2
3
4
5
6
+5 Vaux
GND
+5V
+5V
PS_ON
GND
7
8
9
10
11
12
PWRGD
+3.3V
+3.3V
Tach
GND
Fan-CMD
13
14
15
16
17
18
+12V
+5V Sense
GND
+5V
+5V
+3.3V
19
20
21
22
23
24
GND
+3.3V
Sense
+3.3V
+3.3V
GND
4-Pin Power (for CPU)
Connector and Icon
Pin
Signal
1
2
3
4
GND
GND
+12V CPU
-12V CPU
6-Pin Power (for CPU) (CMT, SFF)
Connector and Icon
Pin
Signal
6
4
1
2
3
4
5
6
GND
GND
GND
12V CPU
12V CPU
+12V
198
Appendix A
Connector Pin Assignments