Intel D865GRH D865GRH_TechProdSpec. - Page 28
Intel, 865G Chipset
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Intel Desktop Board D865GRH Technical Product Specification 1.7 Intel® 865G Chipset The Intel 865G chipset consists of the following devices: • Intel 82865G Graphics and Memory Controller Hub (GMCH) with Accelerated Hub Architecture (AHA) bus • Intel 82801EB I/O Controller Hub (ICH5) 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 ICH5 is a centralized controller for the board's I/O paths. The FWH provides the nonvolatile storage of the BIOS. The component combination provides the chipset interfaces as shown in Figure 8. System Bus CSA Interface Parallel ATA IDE Interface Network USB AGP Interface 865G Chipset 82865G Graphics and Memory Controller Hub (GMCH) AHA Bus 82801EB I/O Controller Hub (ICH5) 82802AB 4 Mbit Firmware Hub (FWH) Display Interface Dual-Channel DDR SDRAM Bus Serial LPC Bus ATA IDE SMBus PCI Bus AC Link Interface Figure 8. Intel 865G Chipset Block Diagram OM15990 For information about The Intel 865G chipset Resources used by the chipset Refer to http://developer.intel.com/ Chapter 2 28