Intel D845GEBV2 BLKD845GEBV2L-10PK User Manual
Product codes
BLKD845GEBV2L-10PK
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification
26
1.8 Intel
®
845GE Chipset
The Intel 845GE chipset consists of the following devices:
• Intel 82845GE Graphics and Memory Controller Hub (GMCH) with Accelerated Hub
• Intel 82845GE 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. The component combination
provides the chipset interfaces as shown in Figure 6.
• 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. The component combination
provides the chipset interfaces as shown in Figure 6.
845GE Chipset
82801DB
I/O Controller Hub
(ICH4)
82845GE
Graphics and
Memory Controller
Hub (GMCH)
4 Mbit Firmware
Hub (FWH)
AHA
Bus
System Bus
UDMA 33
ATA-66/100
USB
AGP
Interface
OM14832
Network
AC Link
PCI Bus
SMBus
DDR
SDRAM
Bus
LPC Bus
Display
Interface
Figure 6. Intel 845GE Chipset Block Diagram
For information about
Refer to
The Intel 845GE chipset
Resources used by the chipset
Chapter 2