A–4
483941-001
Service Reference Guide
Connector Pin Assignments
24-Pin Power
Connector
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
1
2
3
4
5
6
7
+3.3 V
+3.3 V
GND
+5 V
GND
+5 V
GND
8
9
10
11
12
13
13-1
P.G
+5 VSB
+12 V
+12 V
+3.3 V
+3.3 V
+3.3 VS
14
15
16
17
18
19
20
-12 V
GND
PSON
GND
GND
GND
NI
21
22
23
24
+5 V
+5 V
+5 V
GND
4-Pin Power (for CPU)
Connector and Icon
Pin
Signal
1
GND
2
GND
3
+12 V
4
+12 V
24
12
13
1