Datasheet

Technical Reference
67
2.8.2.3 Add-in Board and Peripheral Interface Connectors
Figure 15 shows the location of the add-in board connector and peripheral connectors for the
Desktop Board D845GEBV2. Note the following considerations for the PCI bus connectors (for
both Desktop Boards):
• 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.
OM13579
1
2
40
39
1
2
33
34
1
1
2
40
39
K
I
JL
A B C D E
F
G H
Item Description Item Description
A CNR (optional) G PCI bus connector 1
B PCI bus connector 6 H AGP connector
C PCI bus connector 5 I Diskette drive
D PCI bus connector 4 J Primary IDE
E PCI bus connector 3 K Secondary IDE
F PCI bus connector 2 L SCSI LED
Figure 15. D845GEBV2 Add-in Board and Peripheral Interface Connectors
Figure 16 shows the location of the add-in board connector and peripheral connectors for the
Desktop Board D845GERG2.