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45
2.8.2 Internal I/O Connectors
The internal I/O connectors are divided into the following functional groups:
• Audio (see page 46)
ATAPI CD-ROM
Front panel audio
• Power and hardware control (see page 48)
Fans [3]
ATX12V power
Main power
Chassis intrusion
• Add-in boards and peripheral interfaces (see page 51)
PCI bus
AGP
IDE
Diskette drive
2.8.2.1 Expansion Slots
The board has the following expansion slots:
• AGP connector: The AGP connector is keyed for Universal 0.8 V AGP 3.0 cards or 1.5 V
AGP 2.0 cards only. Do not install a legacy 3.3 V AGP card. The AGP connector is not
mechanically compatible with legacy 3.3 V AGP cards.
• Three PCI rev 2.2 compliant local bus slots. The SMBus is routed to PCI bus connector 2 only
(ATX expansion slot 6). PCI add-in cards with SMBus support can access sensor data and
other information residing on the Desktop Board.
✏
NOTE
This document references back-panel slot numbering with respect to processor location on the
board. The AGP slot is not numbered. PCI slots are identified as PCI slot #x, starting with the
slot closest to the processor. Figure 11 (page 51) illustrates the board’s PCI slot numbering.