Compaq W4000 manual Card Edge Connector

Technical Reference Guide

The card includes four MGA G200 graphics controllers. Each controller includes a VGA controller core, 2D and 3D engines, and a 250-MHz RAMDAC. Each controller can drive either an analog RGB monitor or a DVI-compliant digital monitor.

Card

Edge

Connector

PCI

Bus

PCI

I/F

MGA G200 Graphics Controller
	Video		Memory
	Scalar		I/F	250-MHz
				RAMDAC
2D/VGA		3D Array		CRT
Engine		Engine
				Controller
				DVI
				Controller

128-bit
Data Bus
RGB
	Analog
H/VSync	Monitor
DVI Data	Digital
	Monitor

Figure H-3.MGA G200 Graphics Controller Architecture

The MGA G200 graphics controller includes the following features:

♦64-bit SGRAM interface

♦PCI bus 2.1 compliant with bus-mastering support

♦2D drawing engine with:

•128-bit BitBLTs, rectangle/polygon fills, line draws

•Hardware cursor

•8-/16-/32-bpp mode acceleration

♦Analog (RGB) or DVI monitor support

♦3D accelerator with:

•Vertex fog

•Anistropic filtering

•Specular lighting diffuse, flat and Gouraud shading

•Full-scene anti-aliasing

♦250-MHz RAMDAC

♦VESA compliancy:

•Dual DDC2B monitor support

•VIP 2.0 interface

•DPMS, EPA Energy Star, and ACPI-compliant power management

Compaq Personal Computers H-3

Original - March 2002