Compaq 850 manual Appendix G Compaq/ELSA GLoria II AGP Graphics Card

Appendix G Compaq/ELSA GLoria II AGP Graphics Card

G.2 FUNCTIONAL DESCRIPTION

The ELSA GLoria II-SD 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 64 megabytes of on-board SDRAM stores the main display image.

NVIDIA N10 Graphics Controller

128-bit

166-MHz

Data Bus

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

	64 MB
	SDRAM
	Frame Buffer
VSync	Analog
HSync	Monitor
RGB	Connector

BIOS

ROM

Figure G-2.ELSA GLoria II Graphics Card Block diagram

The ELSA GLoria II Graphics Card includes the following features:

♦64-MB SDRAM frame buffer using 128-bit 166-MHz access

♦AGP 4X transfers with sideband addressing

♦2D drawing engine with:

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

•Hardware cursor

•8-/16-/32-bpp mode acceleration

♦DVD support with:

•Hardware-accelerated MPEG2 (720 x 480)

•HDTV format support (720i-1080i, 720p-1080p)

♦3D accelerator with:

•Hardware transform and lighting

•Single-pass dual textures

•4 rendering pipelines

•Anistropic filtering

•8-bit stencil buffer

•Specular lighting diffuse shading

•16-/24-bit Z-buffering

♦350-MHz RAMDAC

♦VESA compliancy:

•DVI/DFP connector

•DDC2B monitor support

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

G-2Compaq Personal Computers

Original - November 2000