Power supply (primary) – NEC SP B-Series User Manual
Page 107

B-6 Connector Pin Assignments
Power Supply (Primary)
Voltages from the power supply are input to the system board through the
primary power supply connector. The following table shows the connector pin
locations and pin assignments.
Primary Power Supply Connector Pin Assignments
Pin
Signal
Pin
Signal
1
+3.3V
11
+3.3V
2
+3.3V
12
-12V
3
Ground
13
Ground
4
+5V
14
PS-ON# (Power supply
remote on/off control)
5
Ground
15
Ground
6
+5V
16
Ground
7
Ground
17
Ground
8
PWRGD (Power Good)
18
-5V
9
+5VSB
19
+5V
10
+12V
20
+5V