Desktop Board Features
15
Accelerated Graphics Port (AGP)
✏
NOTE
The board is only compatible with 1.5 V AGP cards.
The AGP is a high-performance bus 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 AGP 4X and 2X add-in cards. The AGP card retention mechanism is
used only with cards with retention notches (see Figure 3 on page 22). For information about
installing the AGP card retention mechanism and an AGP card, see Chapter 2.
Communication and Networking Riser (CNR)
(D850GB only)
The CNR provides an interface that supports the audio, modem, USB, and LAN interfaces of the
Intel 850 chipset.
Audio Subsystem (D850GBAL only)
The audio subsystem features the following:
• Intel 82801BA ICH2
• Analog Devices AD1881 analog codec (AC ’97)
✏
NOTE
The 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 Section 3.
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