Intel D975XBX2 - Desktop Board Motherboard - 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 Desktop Board D975XBX2 Technical Product Specification
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Table 24. Main Power Connector
Pin Signal Name Pin Signal Name
1 +3.3 V 13 +3.3 V
2 +3.3 V 14 -12 V
3 Ground 15 Ground
4 +5 V 16 PS-ON# (power supply remote on/off)
5 Ground 17 Ground
6 +5 V 18 Ground
7 Ground 19 Ground
8 PWRGD (Power Good) 20 No connect
9 +5 V (Standby) 21 +5 V
10 +12 V 22 +5 V
11 +12 V 23 +5 V
12 2 x 12 connector detect 24 Ground
Table 25. Processor Core Power Connector (2 x 4 Pin)
Pin Signal Name Pin Signal Name
1 Ground 5 +12 V – Rail 1
2 Ground 6 +12 V – Rail 1
3 Ground 7 +12 V – Rail 2
4 Ground 8 +12 V – Rail 2
Table 26. Processor Core Power Connector (2 x 2 Pin)
Pin Signal Name Pin Signal Name
1 Ground 2 +12 V
2 Ground 4 +12 V
Table 27. Auxiliary PCI Express Graphics Power
Pin Signal Name
1 +12 V
2 1 x 4 connector detect
3 Ground
4 +5 V