Functional Description - HP Compaq d330 DT Technical Reference Manual

Chapter 6 Integrated Graphics Subsystem
6.2

FUNCTIONAL DESCRIPTION

The Intel 865G chipset featured on the d330 and d530 systems includes an integrated graphics
controller (IGC) into its 82865G GMCH component (Figure 6-1). The IGC can directly drive an
external, analog multi-scan monitor at resolutions up to and including 2048 x 1536 pixels. On
systems with an AGP slot the IGC can also support two digital video displays with an optional
AGP Digital Device (ADD) will provide two digital video display ports. The IGC includes a
memory management feature that allocates portions of system memory for use as the frame buffer
and for storing textures and 3D effects.
Monitor
AGP Slot
Described in Chapter 3
Described in Chapter 4
Figure 6-1. 865G-Based Graphics, Block diagram
The Integrated Graphics Controller includes the following features:
♦ Rapid pixel and texel rendering using special pipelines that allow 2D and 3D operations to
overlap, speeding up visual effects, reducing the amount of memory for texture storage.
♦ Zone rendering for optimizing 3D drawing, eliminating the need for local graphics memory
by reducing the bandwidth.
♦ Dynamic video memory allocation, where the amount of memory required by the application
is acquired (or released) by the controller.
♦ Intelligent memory management allowing tiled memory addressing, deep display buffering,
and dynamic data management.
♦ Supports two digital video displays with optional ADD card.
6-2 hp compaq d330 and d530 Series of Personal Computers
Featuring the Intel Pentium 4 Processor
82865G GMCH
FSB
I/F
Integrated
RGB
Graphics
Controller
AGP Bus
AGP I/F
Hub Link
I/F
First Edition - June 2003
SDRAM
Controller
DDR SDRAM
System
Memory