Intel D845EPI Intel Desktop Board D845EPI Technical Product Specification - Page 49

Add-in Board and Peripheral Interface Connectors

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Technical Reference 2.8.2.3 Add-in Board and Peripheral Interface Connectors Figure 6 shows the location of the add-in board connector and peripheral connectors for the Desktop Board D845EPI. 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, enabling PCI bus add-in boards with SMBus support to access sensor data on the Desktop Board. The SMBus signals are as follows:  The SMBus clock line is connected to pin A40.  The SMBus data line is connected to pin A41. A BCD 2 1 2 1 G F 40 39 2 40 39 1 E Item A B C D E F G Description PCI bus connector 3 PCI bus connector 2 PCI bus connector 1 AGP connector Diskette drive Primary IDE Secondary IDE 34 33 OM16247 Figure 6. Add-in Board and Peripheral Interface Connectors 49

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Technical Reference
49
2.8.2.3
Add-in Board and Peripheral Interface Connectors
Figure 6 shows the location of the add-in board connector and peripheral connectors for the
Desktop Board D845EPI.
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, enabling PCI bus add-in boards with SMBus
support to access sensor data on the Desktop Board.
The SMBus signals are as follows:
The SMBus clock line is connected to pin A40.
The SMBus data line is connected to pin A41.
OM16247
A
2
40
39
40
39
1
G
E
F
2
33
34
1
2
B
C
D
Item
Description
A
PCI bus connector 3
B
PCI bus connector 2
C
PCI bus connector 1
D
AGP connector
E
Diskette drive
F
Primary IDE
G
Secondary IDE
Figure 6.
Add-in Board and Peripheral Interface Connectors