1 intel 845ge graphics subsystem – Hypertherm D845GEBV2 User Manual

Page 27

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Product Description

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1.8.1 Intel 845GE Graphics Subsystem

The Intel 845GE chipset contains two separate, mutually exclusive graphics options. Either the
Intel Extreme Graphics controller (contained within the 82845GE GMCH) is used, or an AGP
add-in card can be used. When an AGP add-in card is installed, the Intel Extreme Graphics
controller is disabled.

1.8.1.1 Intel

®

Extreme Graphics Controller

The Intel Extreme Graphics controller features the following:
• Integrated graphics controller

 32 bpp (Bits Per Pixel) graphics engine
 266 MHz core frequency
 256-bit internal data path for 2-D and 3-D graphics
 Motion video acceleration

• 3-D graphics visual and texturing enhancement
• Display

 Integrated 24-bit 350 MHz RAMDAC
 DDC2B compliant interface

• Video

 Dual monitor synchronous display
 Hardware motion compensation for software MPEG2 decode
 Two multiplexed DVO port interfaces with 165 MHz pixel clocks using an AGP Digital

Display (ADD) card

• Dynamic Video Memory Technology (DVMT) support up to 64 MB

For information about

Refer to

DVMT

Section 1.8.1.2, page 31

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INTEGRATOR’S NOTE

EMC emission testing of high-speed video was performed on this Desktop Board using scrolling
H’s displayed on the video monitor in accordance with ANSI C63.4-2000 documentation. The
scrolling H’s are displayed using the following font sizes:

For video resolutions greater than 1600 x 1200 (including 2048 x 1536 and 1920 x 1440),

a font size of 200% is used.

For a 1600 x 1200 video resolution, a 150% font size is used.
For resolutions less than 1600 x 1200, a normal or large font size is used.

All available resolutions are tested using the highest available color depth and monitor refresh
rate.

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