Intel BOXD845BGSE Product Specification - Page 64

Add-in Board and Peripheral Interface Connectors

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Intel Desktop Board D845BG/D845PT Technical Product Specification 2.8.2.4 Add-in Board and Peripheral Interface Connectors Figure 14 shows the location of the add-in board connector and peripheral connectors for the D845BG board. Note the following considerations for the PCI bus connectors (for both boards): • All of the PCI bus connectors are bus master capable. • PCI bus connector 1 has SMBus signals routed to it. This enables PCI bus add-in boards with SMBus support to access sensor data on the 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 E F GH 2 1 2 1 2 1 1 40 39 40 39 34 33 Item A B C D E F G H I J K L L KJ I OM13002 Description For more information see: Communication and Networking Riser (CNR) Table 34 PCI bus connector 6 Table 35 PCI bus connector 5 Table 35 PCI bus connector 4 Table 35 PCI bus connector 3 Table 35 PCI bus connector 2 Table 35 PCI bus connector 1 Table 35 AGP connector Table 36 Diskette drive Table 37 Primary IDE Table 38 Secondary IDE Table 38 SCSI LED Table 39 Figure 14. D845BG Add-in Board and Peripheral Interface Connectors 64

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Intel Desktop Board D845BG/D845PT Technical Product Specification
64
2.8.2.4
Add-in Board and Peripheral Interface Connectors
Figure 14 shows the location of the add-in board connector and peripheral connectors for the
D845BG board.
Note the following considerations for the PCI bus connectors (for both boards):
•
All of the PCI bus connectors are bus master capable.
•
PCI bus connector 1 has SMBus signals routed to it.
This enables PCI bus add-in boards with
SMBus support to access sensor data on the 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
OM13002
1
2
33
34
1
2
40
39
1
2
40
39
1
I
J
K
L
H
A
D
C
B
F
E
G
Item
Description
For more information see:
A
Communication and Networking Riser (CNR)
Table 34
B
PCI bus connector 6
Table 35
C
PCI bus connector 5
Table 35
D
PCI bus connector 4
Table 35
E
PCI bus connector 3
Table 35
F
PCI bus connector 2
Table 35
G
PCI bus connector 1
Table 35
H
AGP connector
Table 36
I
Diskette drive
Table 37
J
Primary IDE
Table 38
K
Secondary IDE
Table 38
L
SCSI LED
Table 39
Figure 14.
D845BG Add-in Board and Peripheral Interface Connectors