HP dc7800 manual Audio Subsystem, Integrated Graphics Subsystem Statistics

System Overview

2.3.9 Graphics Subsystem

These systems use the Q35 GMCH component, which includes an integrated graphics controller that can drive an external VGA monitor. The controller implements Dynamic Video Memory Technology (DVMT 3.0) for video memory. Table 2-5 lists the key features of the integrated graphics subsystem.

Table 2-5

Integrated Graphics Subsystem Statistics

	Q35 GMCH
	Integrated Graphics Controller
Recommended for	Hi 2D, Entry 3D
Bus Type	Int. PCI Express
Memory Amount	8 MB pre-allocated
Memory Type	DVMT 3.0
DAC Speed	400 MHz
Maximum 2D Resolution	2048x1536 @ 85 Hz
Software Compatibility	Quick Draw,
	DirectX 9.0,
	Direct Draw,
	Direct Show,
	Open GL 1.4,
	MPEG 1-2,
	Indeo
Outputs	1 RGB

The IGC supports dual independent display for expanding the desktop viewing area across two monitors. The USDT form factor includes a DVI-D interface for direct connection with a digital video monitor. The graphics subsystem of the SFF and CMT systems can be upgraded by installing an SDVO ADD2 card or PCIe x16 graphics card in the PCIe x16 graphics slot.

2.3.10 Audio Subsystem

These systems use the integrated High Definitions audio controller of the chipset and the ADI AD1884 High Definition audio codec. HD audio provides improvements over AC’97 audio such as higher sampling rates, refined signal interfaces, and audio processors with a higher signal-to-noise ratio. The audio line input jack can be re-configured as a microphone input, and multi-streaming is supported. These systems include a 1.5-watt output amplifier driving an internal speaker. All models include front panel-accessible stereo microphone in and headphone out audio jacks.

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