24-Pin Power
Connector
Pin
Signal
1
+3.3V
2
+3.3V
3
GND
4
+5V
5
GND
6
+5V
138 Appendix A Connector Pin Assignments
Pin
Signal
7
GND
8
POK
9
+5 Vaux
10
+12V
11
+12V
12
+3.3V
Pin
Signal
13
+3.3V
14
–12V
15
GND
16
PSON
17
GND
18
GND
Pin
Signal
19
GND
20
open
21
+5V
22
+5V
23
+5V
24
GND