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Motherboard Selector Guide
Chipset Comparison Chart
Tech Docs & Drivers
82443BX Host Bridge/Controller (PAC)
82443BX Electrical & Thermal Timing Specification - Datasheet Addendum
82371AB PCI-TO-ISA/IDE Xcelerator (PIIX4)
82371AB (PIIX4) PCI ISA IDE Xcelerator Timing Specs - Datasheet Addendum
Intel® 82371AB PIIX4, Intel® 82371EB PIIX4E and Intel® 82371MB PIIX4M Specification Update
82093AA I/O Advanced Programmable Interrupt Controller (IOAPIC)
380AB/PB Dock Set Product Overview
380FB PCIset: 82380AB Mobile PCI-to-ISA Bridge (MISA)
380FB PCIset: 82380FB Mobile PCI-to-PCI Bridge (MPCI2)
440BX AGPset Desktop Design Guide
440BX AGPset Desktop Design Guide Update
440BX AGPset Design Guide Update
82093AA I/O Advanced Programmable Interrupt Controller (I/O APIC) Specification Update
AP-753 PCI Local Bus Specification Revision 2. 1 vs. 2.0
PCIset/AGPset Software Compatibility with Microsoft Windows* 95
440 Series Chipsets Drivers and Utilities

Intel® 440BX AGPset product overview

The Intel® 440BX AGPset is the first chipset to optimize Intel® Pentium® III processor performance for 3D and video applications with 100-MHz system bus/SDRAM. As Intel's second-generation AGPset with Intel® Quad Port Acceleration (QPA), the Intel 440BX AGPset improves the speed of the system bus from 66 MHz to 100 MHz, while increasing the width and depth of buffers to the system bus, Accelerated Graphics Port, SDRAM, and the PCI bus. In addition, the 440BX AGPset can interface with ATA/66 HDD in UDMA mode 2. This makes the Intel 440BX AGPset an excellent design solution for "next-generation performance" in consumer desktop, corporate small business desktop, mobile, workstation and server market systems. By optimizing the performance of the Pentium III processor with Dual Independent Bus (DIB) architecture, the new Intel 440BX AGPset supports the emerging set of visual computing applications, including 3D and video applications for design, data visualization, Web content creation, education, and gaming.

Ease of design and scalability
Designing with the Intel 440BX AGPset is simplified because the chipset enables scalable motherboard designs with either a 66-MHz or 100-MHz system bus. To further improve design investments, the Intel 440BX AGPset is form-factor compliant with the current Intel® 440LX AGPset. Design collateral is a superset of Intel 440LX AGPset design collateral, focusing on 100-MHz SDRAM and enhanced power and thermal management.

Ideal for mobile systems
The Intel 440BX AGPset is the first chipset for mobile Intel® Pentium® III processor-based systems, with an architecture optimized to deliver the highest performance in mobile systems. Specifically, the Intel 440BX AGPset features enhanced power management, including ACPI support, which makes it an ideal choice for low-power mobile platforms. With its flexible feature set, the Intel 440BX AGPset is the solution for mobile Pentium® III processor-based systems and mobile Pentium® II processor-based systems, today and tomorrow.

Optimizing Intel® Pentium® III processor
performance

The Intel 440BX AGPset optimizes the performance of the Intel Pentium III processor in desktop systems by implementing Intel Quad Port Acceleration (QPA). This capability improves system performance through four-port concurrent arbitration of the processor bus, graphics bus, PCI bus, and SDRAM. Intel® QPA allows the Intel 440BX AGPset and the Pentium III processor to deliver optimal performance in visual computing applications, including 3D graphics.

PRODUCT HIGHLIGHTS
Intel® Quad Port Acceleration optimizes Intel® Pentium® III processor, 3D, and video performance with 100-MHz system bus and SDRAM
Platform flexibility enables scalable 100-MHz and 66-MHz designs
Enables "best-of-class" 3D, multimedia and gaming platforms with the Intel® graphics accelerator
Enhanced power and thermal manageability
Two-component chipset (82443BX and 82371AB) is form-factor equivalent with the previous generation Intel® 440LX AGPset
Can interface with ATA/66 Hard Disk Drives in UDMA mode 2

FEATURES BENEFITS
100-MHz System bus/SDRAM support Optimizes performance in platforms with the Pentium® III processor with Dual Independent Bus (DIB) architecture, AGP technology, and 100-MHz SDRAM
Expanded data buffering Improves system performance and concurrency
Open page architecture Multiple SDRAM pages reduce latencies for optimal 3D performance
Enhanced power management Supports the PC '98 ACPI power-management specification for mobile and desktop systems
Platform flexibility Enables scalable 100-MHz and 66-MHz designs; form-factor compliant with ATX, LPX, and NLX motherboards allows extension of existing Intel® 440LX AGPset-based design investments

Product Package
82443BX AGP Host Bridge Controller 492 Ball Grid Array (BGA)
82371AB PCI-ISA Bridge 324 Ball Grid Array (BGA)

Intel® 440BX AGPset Technical Documentation
Type Title
Datasheets Intel® 440BX AGPset: 82443BX Host Bridge/Controller (PAC)
Intel® 440BX AGPset: 82443BX Host Bridge/Controller (PAC) Electrical and Thermal Timing Specification - Datasheet Addendum
82371AB PCI-TO-ISA/IDE Xcelerator (PIIX4)
82371AB (PIIX4) PCI ISA IDE Xcelerator Timing Specifications - Datasheet Addendum
82093AA I/O Advanced Programmable Interrupt Controller (IOAPIC)
Intel 380AB/PB Dock Set Product Overview
Intel 380FB PCIset: 82380AB Mobile PCI-to-ISA Bridge (MISA)
Intel 380FB PCIset: 82380FB Mobile PCI-to-PCI Bridge (MPCI2)
Design Guides Intel® 440BX AGPset Design Guide Update
Intel 440BX AGPset Desktop Design Guide Update
Intel 440BX AGPset Desktop Design Guide
Specification Updates Intel® 82380 (MISA) Docking PCIset - Specification Update
Intel® 440BX AGPset 82443BX Host Bridge/Controller Specification Update
Intel® 82371AB PIIX4, Intel® 82371EB PIIX4E and Intel® 82371MB PIIX4M Specification Update
Application Notes AP-753 PCI Local Bus Specification Revision 2. 1 vs. 2.0
Intel PCIset/AGPset Software Compatibility with Microsoft Windows* 95
What to consider if you are planning to purchase a system with Bus master IDE
Support
Type Title
Drivers and Utilities Busmaster IDE Driver
Intel® Chipset Software Installation Utility (previously named "INF Update Utility")
Industry Specifications Main Memory Resources
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Universal Serial Bus (USB)
Product Support Product Support
Resources
Title
Intel® Developer Update Magazine

The 440BX AGPset may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request.
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