Main Power Connector; Processor Core Power Connector (2 X 4 Pin); Processor Core Power Connector (2 X 2 Pin); Auxiliary Pci Express Graphics Power - Intel S975XBX2 - Workstation Board Motherboard Specification

Table 24. Main Power Connector
Pin Signal Name
1 +3.3 V
2 +3.3 V
3 Ground
4 +5 V
5 Ground
6 +5 V
7 Ground
8 PWRGD (Power Good)
9 +5 V (Standby)
10 +12 V
11 +12 V
12 2 x 12 connector detect
Table 25. Processor Core Power Connector (2 x 4 Pin)
Pin Signal Name
1 Ground
2 Ground
3 Ground
4 Ground
Table 26. Processor Core Power Connector (2 x 2 Pin)
Pin Signal Name
1 Ground
2 Ground
Table 27. Auxiliary PCI Express Graphics Power
Pin Signal Name
1 +12 V
2 1 x 4 connector detect
3 Ground
4 +5 V
Pin Signal Name
13 +3.3 V
14 -12 V
15 Ground
16 PS-ON# (power supply remote on/off)
17 Ground
18 Ground
19 Ground
20 No connect
21 +5 V
22 +5 V
23 +5 V
24 Ground
Pin Signal Name
5 +12 V – Rail 1
6 +12 V – Rail 1
7 +12 V – Rail 2
8 +12 V – Rail 2
Pin Signal Name
2 +12 V
4 +12 V
Technical Reference
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