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List of Intel chipsets

This article provides a list of motherboard chipsets made by Intel, divided into three main categories: those that use the PCI bus for interconnection (the 4xx series), those that connect using specialized "hub links" (the 8xx series), and those that connect using PCI Express (the 9xx series). The chipsets are listed in chronological order.

Pre-chipset situation

Early IBM XT-compatible mainboards did not have have chipset yet, but relied instead on a collection of discrete TTL chips by Intel:

Early chipsets

To integrate the functions needed on a mainboard into a smaller amount of ICs, Intel licensed the ZyMOS POACH chipset for its Intel 80286 and Intel 80386SX processors (the 82230/82231 High Integration AT-Compatible Chip Set). This chipset can be used with an 82335 High-integration Interface Device to provide support for the Intel 386SX.

Intel 440BX

The Intel 440BX (codenamed Seattle), is a chipset from Intel, supporting Pentium II, Pentium III, and Celeron processors. It is also known as the i440BX and was released in April 1998. The official part number is 82443BX.

Features

The 440BX originally supported Slot 1 and later Socket 370 Intel P6-based processors in single and SMP configurations at speeds of up to 1 GHz (and potentially up to 1.4 GHz with certain unsupported modifications, up to 1.7 GHz can be achieved using Front Side Bus speeds higher than 133 MHz and appropriate cooling). Its southbridge counterpart is the PIIX4E.

History

The Intel 440BX is the third Pentium II chipset released by Intel, succeeding the 440FX and 440LX. With the new 100 MHz front side bus, Pentium II CPUs were able to scale better in performance by reducing the difference between processor clock and bus speed. The previous 66 MHz bus had become a serious bottleneck and dated back to the first Pentium "Classic" chipsets.

The 440BX had two closely related chipset peers; the 440ZX and 440MX. 440MX is a mobile chipset for laptops, although a number of notebooks did use 440BX. 440ZX is a cost-reduced version of 440BX. It has a lower maximum RAM limit resulting from having support for only 2 RAM banks. The 440ZX-66, designed for Intel Celeron processor, is limited to 66 MHz FSB speed.