Datasheet

Product Description
23
1.8 Intel
®
845GV Chipset
The Intel 845GV chipset consists of the following devices:
• Intel 82845GV Graphics and Memory Controller Hub (GMCH) with Accelerated Hub
Architecture (AHA) bus
• Intel 82801DB I/O Controller Hub (ICH4) with AHA bus
• Firmware Hub (FWH)
The GMCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the
Accelerated Hub Architecture interface. The ICH4 is a centralized controller for the board’s I/O
paths. The FWH provides the nonvolatile storage of the BIOS.
For information about Refer to
The Intel 845GV chipset http://developer.intel.com/
Resources used by the chipset Chapter 2
1.8.1 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
• Dynamic Video Memory Technology (DVMT) support up to 64 MB
For information about Refer to
DVMT Section 1.8.1.1, page 27