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Chapter 2: Hardware information
2.6.5 CNR slot
The Communications and Networking Riser (CNR) slot supports interface
cards that integrates audio, modem, and network functionality.
The CNR specification supports interfaces including:
• Audio Codec ‘97 (AC ’97) - for audio and/or modem functions
• Local Area Network (LAN) - for networking functions
• Universal Serial Bus (USB) - for functions implemented in the USB
interface, and technologies such as broadband, DSL, and wireless
• System Management Bus (SMB) - for Plug-n-Play functionality
• Power - to provide the signals required for power management, and the
main power supplies to operate the CNR circuitry
The CNR is tagged to replace the current Audio Modem Riser (AMR) slot
because of its flexibility and added features. Also, the CNR slot does not
take up the motherboard space for one PCI slot because it is a shared
slot; rather, it provides you more options.
P4B266
®
P4B266 Communication & Networking
Riser Slot