Intel ® 850 Chipset; Intel ® 82850 Memory Controller Hub (Mch); Intel ® 82801Ba I/O Controller Hub (Ich2); Firmware Hub (Fwh) - Intel D850GB Product Manual

Intel Desktop Board D850GB/D850GBAL Product Guide
Intel ® 850 Chipset
The Intel 850 chipset consists of the following devices:
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Intel 82850 Memory Controller Hub (MCH) with AHA bus
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Intel 82801BA I/O Controller Hub (ICH2) with AHA bus
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Firmware Hub (FWH)

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Intel 82850 Memory Controller Hub (MCH)
The MCH has these features:
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Integrated dual Direct Rambus technology memory channel
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Support for 128 MB to 2 GB main system memory
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Auto-detection of RDRAM memory
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Support for a single AGP device
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Intel 82801BA I/O Controller Hub (ICH2)
The ICH2 has these features:
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Integrated Intel
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Support for the PCI interface
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Support for the Low Pin Count (LPC) interface
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Integrated IDE controller
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Support for USB
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Support for CNR
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General purpose I/O
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Power management logic
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Support for the System Management Bus
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Real-Time Clock
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Support for AC '97 audio devices and modems
Firmware Hub (FWH)
The FWH has these features:
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System BIOS
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System security and manageability logic that enables protection for storing and updating of
platform information
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Ethernet LAN MAC (external PLC required)