Service Reference Guide

Service Reference Guide A–11
Connector Pin Assignments
14-Pin Power (810, 810E, 820, and 845 Chipset-Based
Boards)
Connector
Pin Signal Pin Signal Pin Signal Pin Signal
1
2
3
4
+3.3 V
+3.3 V Aux
RTN
+5 V
5
6
7
8
RTN
+5 V
RTN
+3.3 V
9
10
11
12
-12 v
Fan OFF
ON/STBY
+5 V Aux
13
14
Fan speed
+12 V
20-Pin Power (Deskpro EP)
Connector
Pin Signal Pin Signal Pin Signal Pin Signal
1
2
3
4
5
+3.3 V
+3.3 V
RTN
+5 V
RTN
6
7
8
9
10
+5 V
RTN
Fan OFF
+5 V Aux
+12 V
11
12
13
14
15
+3.3 V
-12 V
RTN
ON/STBY
RTN
16
17
18
19
20
RTN
RTN
-5 V
+5 V
+5 V
1
2
13
14
1
2
19
20