The ICH4 was Intel’s southbridge for the year Views Read Edit View history. Another design decision was to substitute the rigid North-South axis on the motherboard with a star structure. This allows the use of flash memory on a motherboard for fast caching. In other projects Wikimedia Commons. The most important innovation was the support of USB 2.

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Sound support was improved and corresponded the newest AC’97 specification, version 2. InIntel delivered ICH3, which was available in two versions: Like the preceding generation, the ICH4 had pins. The Hub Interface was a point-to-point connection between different components on the motherboard. In other projects Wikimedia Commons. This allows the use of flash memory on a motherboard for fast caching.

I/O Controller Hub

The ICH4 was Intel’s southbridge for the year This page was last edited on 11 Octoberat Accordingly, starting with the Intel 5 Seriesa new ich9rh was used where some functions of the north and south bridge chips were moved to the CPU, and others were consolidated into a Platform Controller Hub PCH. Many motherboard manufacturers had omitted the necessary high-quality safety devices for front panel connectors for ih9dh reasons.


Retrieved from ” https: Notably there is support of ‘hot-swap’ functionality. Intel x86 microprocessors Intel products Intel chipsets.

This replaces the traditional two chip setup. Customers were not willing to pay the high prices for RDRAM and either bought i or iBX motherboards or changed to the competition.

For the first time a Fast Ethernet chip was integrated into the southbridge, depending upon an external PHY chip. There is no version for desktop motherboards. The base version only includes four SATA 2.

Support for Intel High Definition Audio was included. From Wikipedia, the free encyclopedia.

IntelĀ® I/O Controller Hub 9 (ICH9) Family Specification Update

The integrated AC’97 sound controller gained support for up to six channel sound. It removes all PATA support. It supports various interfaces to “low-speed” peripherals, and it supports a suite of intrl functions. The chip had full support for ACPI 2. It had pins. By using this site, you agree to the Terms of Use and Privacy Policy.


In early Intel had suffered a significant setback with the i northbridge.

I/O Controller Hub – Wikipedia

A SATA host controller was integrated. In practice, most baseboard manufacturers still offered PATA appropriate connection types using additional chips from manufacturers such as JMicron or Marvell. The most important innovation was the support of USB 2.

Discontinued BCD oriented 4-bit As CPU speeds increased, a bottleneck eventually emerged between the processor and the motherboarddue to limitations caused by data transmission between the CPU and southbridge. These chips are published. In practice, many motherboard manufacturers continue providing PATA support using third-party chips. In comparison with the ICH2, the changes were limited: In particular, when connecting USB devices via front panels, the chips died by discharges of static electricity.

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