System Board 53
Power Supply and Aux Power HeadersThe power supply header on the system board connects to the power
supply header labelled P1.
Power Supply header
Pin Signal Name
1 +3.3 V
2 +3.3 V
3Ground
4+5 V
5Ground
6+5 V
7Ground
8 PWRGD (Power Good)
9+5 VSB
10 +12 V
11 +3.3 V
12 -12 V
13 Ground
14 PS-ON# (power supply remote on/off control)
15 Ground
10
111
20
1
2
3
4