Intel D945GNT Intel Desktop Board D945GNT Specification Update - Page 9
Digital Noise May Affect Audio Quality When Using the Rear MIC Input on boards - audio driver
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2. Digital Noise May Affect Audio Quality When Using the Rear MIC Input on boards with a 6-Channel (5.1) Audio Subsystem PROBLEM: Digital noise may affect audio quality when using the rear MIC input on boards with a 6-Channel (5.1) Audio Subsystem. The digital noise can affect the MIC signal via the Codec's MIC bias voltage. IMPLICATION: Digital noise may be heard on the rear MIC input when systems are used in the following configuration: input monitor enabled in drivers, MIC boost set to 20dB gain, and MIC volume set to maximum. The digital noise may be heard when recording voice, during voice chat, when dragging window around the screen, or when opening and closing windows. No noise issues have been associated with the front panel MIC input. WORKAROUND: None STATUS: This erratum may be fixed in a future board revision. 3. The placement of capacitors behind PCI Express* x1 connector slot 1 may prohibit some PCI Express x1 add-in cards from properly connecting to the motherboard PROBLEM: Due to the design and placement of the audio circuitry on this motherboard, it was necessary to position capacitors in the keep-out zone behind PCI Express* x1 connector slot 1. IMPLICATION: Some PCI Express x1 add-in cards may not fully connect to PCI Express x1 connector slot 1, due to interference between capacitors in the keepout zone and I/O connectors on the add-in card that are located on the I/O bracket, in line with the edge fingers on the card. WORKAROUND: None STATUS: May be fixed in a later hardware revision. Intel Desktop Board D945GNT Specification Update 9