Desktop Board Features
15
Intel
®
946GZ Express Chipset
The Intel 946GZ Express Chipset consists of the following devices:
• Intel 946GZ Express Chipset Graphics and Memory Controller Hub (GMCH)
• Intel 82801GB I/O Controller Hub (ICH7)
The Intel 946GZ Express Chipset contains two separate, mutually exclusive graphics
options. Either the integrated GMA 3000 graphics controller is used or a PCI Express
x16 add-in card can be used. When a PCI Express x16 add-in card is installed, the
GMA 3000 graphics controller is disabled.
NOTE
A minimum of 512 MB of system memory is required in order for the Intel GMA 3000
integrated graphics controller to operate properly.
Related Link:
Go to the following link for more information about the Intel 946GZ Express Chipset:
http://developer.intel.com/design/nav/pcserver.htm
Onboard Audio Subsystem
Intel Desktop Board D946GZAB has a flexible 6-channel (5.1) onboard audio
subsystem that includes a SigmaTel STAC9227 audio codec and an HD Audio Link
header.
The audio subsystem features:
• Intel
®
High Definition Audio interface
• Advanced jack sense, for the back panel connectors, that enables the audio codec
to recognize the device that is connected to an audio port and retask the connector
via the audio driver.
• S/N (signal-to-noise) ratio: 95 dB
• Microphone input supporting:
― Stereo microphone
― Microphone boost
The subsystem includes the following connectors:
• Front panel audio connector, including functionality for:
― Line out
― Microphone in
• Back panel audio connectors that are configurable through the audio device
drivers:
― Line in/retasking jack
― Line out/retasking jack
― Mic in/retasking jack
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