Compaq 850 manual Functional Description, RAM DAC Sdram

Appendix J Compaq/NVIDIA Quadro2 MXR AGP Graphics Card

J.2 FUNCTIONAL DESCRIPTION

The NVIDIA Quadro2 MXR Graphics Card provides high performance 2D and 3D display imaging. The card’s AGP design provides an economical approach to 3D processing by off- loading 3D effects such as texturing, z-buffering and alpha blending to the system memory while 32 megabytes of on-board SDRAM stores the main display image.

NVIDIA NV11GL Graphics Controller

128-bit
166-MHz
Data Bus	32 MB

Card

Edge

Connector

AGP Bus

AGP 4X

I/F

Video

Scalar

2D/VGA	3D Array
Engine	Engine

Memory

I/F

CRT

Controller

350-MHz

RAM

DAC

	SDRAM
	Frame Buffer
VSync	Analog
HSync	Monitor
RGB	Connector

BIOS

ROM

Figure J-2.NVIDIA Quadro2 MXR Graphics Card Block diagram

The NVIDIA Quadro2 MXR Graphics Card includes the following features:

♦32-MB SDRAM frame buffer using 128-bit 183-MHz access

♦AGP 4X transfers with sideband addressing

♦2D drawing engine

♦3D rendering engine

♦350-MHz RAMDAC

♦32-bit Z/stencil buffer eliminates hidden screen portions for faster loading

♦32-bit color for increased image quality

♦30-fps full-screen DVD playback

♦Dual-monitor support with a PCI graphics card

J-2Compaq Personal Computers

Original - December 2000