Third-Party Vendor Information

5.1.1Voltage Regulator Modules

The following vendors are developing DC-DC converter modules for Intel® Pentium® II processor voltage and current requirements per the VRM 8.2 DC-DC Converter Design Guidelines.

Table 5-4. Voltage Regulator Modules

Supplier,

Contact

Phone

Intel CNDA

 

 

 

 

 

Celestica

Dariusz Basarab

416-448-5841

 

 

 

Corsair Microsystems

John Beekley

408-559-1777

 

 

 

 

 

886-2-7164822, x233

Delta Electronics

Colin Weng

(Taiwan)

North America: Delta Products Corp.

Maurice Lee

 

 

 

510-770-0660, x111

 

 

 

LinFinity

Andrew Stewart

714-372-8383

 

 

 

Raytheon

Hubert Engle Brechten

415-962-7982

 

 

 

Semtech

Alan Moore

805-498-2111, x291

European CNDA

 

 

 

 

 

VXI Electronics

Joe Chang

503-652-7300

 

 

 

Astec

Tichard To

852-2411-7429

 

 

 

Switch Power

Jeff Van Skike

408-871-2400

 

 

 

5.1.2Voltage Regulator Control Silicon

The following vendors are developing DC-DC converter silicon and reference designs for Intel® Pentium® II processor voltage and current requirements. Generally, VRM 8.1 (5-bit VID) control silicon supports VRM 8.2 requirements.

Table 5-5. Voltage Regulator Control Silicon Vendors

Supplier,

Contact

Phone

Intel CNDA

 

 

 

 

 

Cherry Semiconductor

Barbara Gibson

401-886-3895

 

 

 

Elantee

Steve Sacarisen

408-945-1323, x345

 

 

 

Harris

Dean Henderson

919-405-3603

 

 

 

International Rectifie

Chris Davis

310-252-7111

 

 

 

Linear Technology

Jim MacDonald

408-432-1900, x2361

 

 

 

LinFinity

Andrew Stewart

714-372-8383

 

 

 

Maxim

David Timm

408-737-7600

 

 

 

Micro Linear

Doyle Slack

408-433-5200

 

 

 

Motorola

Stan Livingston

503-641-6881

 

 

 

atheon

Dave McIntyre

415-962-7734

 

 

 

Semtech

Alan Moore

805-498-2111, x291

 

 

 

Sharp

See Sharp Web site

 

 

 

 

Siliconix

Howard Chen

408-567-8151

 

 

 

Unisem

Reza Amirani

714-453-1008

 

 

 

Unitrode

Larry Spaziani

603-424-2410

 

 

 

Intel®440GX AGPset Design Guide

5-2

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Intel 440GX Voltage Regulator Modules, Voltage Regulator Control Silicon Vendors, Supplier Contact Phone Intel Cnda
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440GX specifications

The Intel 440GX chipset was launched in 1997 as part of Intel's series of chipsets known as the 440 family, and it served as a critical component for various Pentium II and Pentium III-based motherboard architectures. Specifically designed for the second generation of Intel’s processors, the 440GX delivered enhanced performance and supported a range of important technologies that defined PC architectures of its time.

One of the main features of the Intel 440GX was its support for a 100 MHz front-side bus (FSB), which significantly improved data transfer rates between the CPU and the memory subsystem. This advancement allowed the 440GX to accommodate both the original Pentium II processors as well as the later Pentium III chips, providing compatibility and flexibility for system builders and consumers alike.

The 440GX chipset included an integrated AGP (Accelerated Graphics Port) controller, which supported AGP 2x speeds. This enabled high-performance graphics cards to be utilized effectively, delivering many enhanced graphics capabilities for gaming and multimedia applications. The AGP interface was crucial at the time as it offered a dedicated pathway for graphics data, increasing bandwidth compared to traditional PCI slots.

In terms of memory support, the 440GX could address up to 512 MB of SDRAM, allowing systems built with this chipset to run comfortably with sufficient memory for the era’s demanding applications. The memory controller was capable of supporting both single and double-sided DIMMs, which provided versatility in memory configuration for system builders.

Another notable feature of the Intel 440GX was its support for multi-processor configurations through its Dual Processors support feature. This allowed enterprise and workstation computers to leverage the performance advantages of multiple CPUs, making the chipset suitable for business and professional environments where multitasking and high-performance computing were essential.

On the connectivity front, the chipset supported up to six PCI slots, enhancing peripheral device integration and expansion capabilities. It also included integrated IDE controllers, facilitating connections for hard drives and CD-ROM devices.

Overall, the Intel 440GX chipset represented a balanced combination of performance, flexibility, and technology advancements for its time. Its introduction helped establish a foundation for subsequent advancements in PC technology and set the stage for more powerful computing systems in the years to come.
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