
Technical Reference
2.8.2.4Add-in  Board and Peripheral Interface Connectors
Figure 11 shows the location of the add-in  board connector and peripheral connectors. Note the following considerations for the PCI bus connectors:
•All of the PCI bus connectors are bus master capable.
•SMBus signals are routed to PCI bus connector 2. This enables PCI bus add-in  boards with SMBus support to access sensor data on the Desktop Board. 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.
| A | B | C | D | 
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| 
 | 
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 | 2 | 40 | 
| 
 | 
 | 
 | 39 2 | |
| 
 | 
 | 
 | 1 | |
| 
 | 
 | 
 | 2 | 34 | 
| 
 | 
 | 
 | 1 | 33 | 
| 
 | 
 | 
 | 
 | 39 1 | 
| 
 | 
 | G | F | E | 
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| 
 | 
 | 
 | 
 | OM17037 | 
 | 
| 
 | Item | Description | Item | Description | 
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| 
 | A | PCI bus connector 3 | E | Diskette drive | 
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| 
 | B | PCI bus connector 2 | F | Primary IDE [black] | 
 | 
| 
 | C | PCI bus connector 1 | G | Secondary IDE [white] | 
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| 
 | D | AGP connector | 
 | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
Figure 11. D865PCD Add-in  Board and Peripheral Interface Connectors
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