Intel Desktop Boards D845EPT2 and D845EBG2 Product Guide 16 Expansion Slots The Desktop Boards D845EPT2 and D845EBG2 have the following expansion capabilities: The Desktop Board D845EPT2 has: · Three PCI bus add-in card connectors · SMBus routed to PCI bus connector 1 slot · One AGP connector · One optional CNR connector (slot shared with PCI bus connector 3) The Desktop Board D845EBG2 has: · Six PCI bus add-in card connectors · SMBus routed to PCI bus connector 1 slot · One AGP connector · One optional CNR connector (slot shared with PCI bus connector 6) Accelerated Graphics Port (AGP) /NOTE The Desktop Boards D845EPT2 and D845EBG2 are only compatible with 1.5 V AGP cards. AGP is a high-performance interface for graphics-intensive applications, such as 3D graphics. AGP is independent of the PCI bus and is intended for exclusive use with graphical display devices. The AGP connector supports 1.5 V AGP 4X and 2X add-in cards. The boxed desktop board comes with an integrated AGP card retention mechanism (RM). For information about installing the AGP card, see Chapter 2 on page 21.Communication and Networking Riser (CNR) (Optional) The optional CNR provides an interface that supports various features such as audio, modem, and LAN. BIOS The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI and IDE auto-configuration utilities. The BIOS is stored in the Firmware Hub. The BIOS can be updated by following the instructions in Chapter 3 on page 37. PCI Auto Configuration If you install a PCI add-in card in your computer, the PCI auto-configuration utility in the BIOS automatically detects and configures the resources (IRQs, DMA channels, and I/O space) for that add-in card. You do not need to run the BIOS Setup program after you install a PCI add-in card.
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