Intel D946GZIS Product Guide - Page 14

Intel Desktop Board D946GZIS Product Guide Related Links: Go to the following links or pages for more information about: • SDRAM specifications, http://www.intel.com/technology/memory/ • Installing memory, page 32 in Chapter 2 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 Desktop Board D946GZIS 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 14