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Technical Reference

Table 27. ATX12V Power Connector

Pin Signal Name Pin Signal Name

1 Ground 2 Ground

3 +12 V 4 +12 V

Table 28. Alternate Power Connector

Pin Signal Name

1 +12 V

2 Ground

3 Ground

4 +5 V

2.8.2.3 Add-in Card Connectors

The board has the following add-in card connectors:

•

PCI Express x16: one connector supporting simultaneous transfer speeds up to 8 GBytes/sec

• PCI Express x1: two PCI Express x1 connectors. The x1 interfaces support simultaneous

transfer speeds up to 500 MBytes/sec

• PCI Conventional (rev 2.2 compliant) bus: four PCI Conventional bus add-in card connectors.

The SMBus is routed to PCI Conventional bus connector 2 only (ATX expansion slot 6). PCI

Conventional bus add-in cards with SMBus support can access sensor data and other

information residing on the Desktop Board.

Note the following considerations for the PCI Conventional bus connectors:

• All of the PCI Conventional bus connectors are bus master capable.

• SMBus signals are routed to PCI Conventional bus connector 2. This enables PCI

Conventional bus add-in boards with SMBus support to access sensor data on the boards. The

specific SMBus signals are as follows:

 The SMBus clock line is connected to pin A40.

 The SMBus data line is connected to pin A41.

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Intel BOXD915PBLL Scheda Tecnica Pagina 65