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AGP Connector
✏
NOTE
The boards are compatible with 1.5 V AGP cards only.
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 use with graphical display devices. The
AGP connector supports 1.5 V AGP 4X and 2X add-in cards.
An AGP card retention mechanism (RM) may be included with the boxed desktop board to be used
only with cards with retention notches (see Figure 14 on page 32).
For information about installing the AGP card RM and an AGP card, see Chapter 2 on page 21.
Communication and Networking Riser (CNR) (Optional)
The CNR provides an interface that supports various features such as audio, modem, USB, and
LAN interfaces of the Intel 850 chipset.
Audio Subsystem
The AC '97 compliant audio subsystem consists of the following:
•
Intel 82801BA I/O Controller Hub (ICH2)
•
Analog Devices Inc. AD1885 analog codec
✏
NOTE
The audio line out connector, located on the back panel, is designed to power either headphones
or amplified speakers only. Poor audio quality may occur if passive (non-amplified) speakers are
connected to this output.
Audio drivers and utilities are available from Intel's World Wide Web site:
http://support.intel.com/support/motherboards/desktop
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI and IDE
auto-configuration utilities, and the video BIOS. The BIOS is stored in the Firmware Hub. The
BIOS can be updated by following the instructions in Chapter 3 on page 43.
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.
Desktop Board Features
15
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