Intel Desktop Board D850GB Technical Product Specification
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1.6 Intel
®
850 Chipset
The Intel 850 chipset consists of the following devices:
• 82850 Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus
• 82801BA I/O Controller Hub (ICH2) with AHA bus
• 82802AB Firmware Hub (FWH)
The MCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the
Accelerated Hub Architecture interface. The ICH2 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 3.
850 Chipset
82801BA
I/O Controller Hub
(ICH2)
82850
Memory Controller
Hub (MCH)
82802AB
Firmware Hub
(FWH)
AHA
Bus
System Bus
ATA-33/66/100
USB
AGP
Interface
OM10411
Network
AC LinkPCI BusSMBus
Dual RAMBUS
Channels
LPC Bus
Figure 3. Intel 850 Chipset Block Diagram
For information about Refer to
The Intel 850 chipset http://developer.intel.com
Chipset resources Section 1.3, page 16