Dell Precision T5400 (Late 2007) - Manual (Page 169)

Adding and Replacing Parts 169
Pin Number Signal name 18-AWG Wire
1 3.3 V Orange
2 3.3 V Orange
3 3.3 V Orange
4 COM Black
5 POK Gray
6 5VSB Purple
7 COM Black
8 M12 Blue
9 12 VD Yellow/ White
10 5 V Red
11 5 V Red
12 COM Black
13 OPEN
14 3.3 VSE Orange
15 3.3 V Orange
16 12 VD Yellow/ White
17 PSON Green
18 12 VD Yellow/ White
19 COM Black
20 COM Black
21 FAN FAULT Brown
22 5 V Red
23 5 V Red
24 COM Black