Add-In Board And Peripheral Interface Connectors - Intel D845GRG Specification

2.2.2.3

Add-in Board and Peripheral Interface Connectors

Figure 4 shows the location of the add-in board connector and peripheral connectors for the
Desktop Board D845GRG. 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.
Figure 4. Add-in Board and Peripheral Interface Connectors
A B C D E
2
1
2
1
H
I
Item Description
A CNR (optional)
B PCI bus connector 3
C PCI bus connector 2
D PCI bus connector 1
E AGP connector
F Diskette drive
G Primary IDE
H Secondary IDE
I SCSI LED
40
39
34
40 2
1
39 33
G F
Product-Specific Features
OM13374
19