Service Reference Guide

A–12 Service Reference Guide
Connector Pin Assignments
20-Pin Power (Deskpro EN)
Connector
Pin Signal Pin Signal Pin Signal Pin Signal
1
2
3
4
5
3 V
3 V/RS
RTN
+5 V
RTN
6
7
8
9
10
+5 V
Aux RTN
Fan OFF
+5 V Aux
+12 V
11
12
13
14
15
+3 V
-12 V
RTN
ON/STBY
RTN
16
17
18
19
20
RTN/RS
RTN
-5 V
+5 V
+5 V
24-Pin Power
Connector
Pin Signal Pin Signal Pin Signal Pin Signal
1
2
3
4
5
6
+3.3 V
+3.3 V
RTN
+5 V
RTN
+5 V
7
8
9
10
11
12
Aux RTN
Fan OFF
+5 V Aux
+12 V
3.3 V Aux
Fan CMD
13
14
15
16
17
18
+3.3 V
-12 V
RTN
ON/STBY
RTN
RTN/(R/S)
19
20
21
22
23
24
RTN
-5 V
+5 V
+5 V
3.3 V R/S
Fan Sink
4-Pin Power (for CPU)
Connector and Icon Pin Signal
1RTN
2RTN
3 12.8 Vcpu
4 12.8 Vcpu
1
2
19
20
1
2
19
20
6-Pin Power (for CPU)
Connector and Icon Pin Signal Pin Signal
1 RTN 4 12.8 Vcpu
2 RTN 5 12.8 Vcpu
3 RTN 6 12.8 Vcpu
6
4