Thermals / Cooling Solutions, Mechanicals

Design Checklist

3.19.2Design Considerations

•For UP systems to support both the current Intel® Pentium® II processor and future processors, it is highly recommended that storage space for two (or more) BIOS Updates be provided. This will allow manufacturing flexibility to install either processor, the BIOS should detect the processor and load the correct BIOS Update.

•For DP systems, it is recommended that storage for two (or more) BIOS Updates be reserved for the case where two different steppings of Slot 1 processors are installed. This will allow both processors to have BIOS Updates applied.

3.20Thermals / Cooling Solutions

•For the Intel® Pentium® II processor, an adequate heat sink and air ventilation must be

provided to ensure that the processor TPLATE specification documented in the datasheet is met. See the Intel® Pentium® II Processor Power Distribution Guidelines, and Intel® Pentium® II Processor Thermal Design Guidelines for thermal design information.

•For the Boxed processor, the system must have adequate air ventilation to ensure that the air intake temperature to the fan/heatsink is less than the maximum allowable fan preheat

temperature (TPH) at the system maximum ambient temperature, measured 0.3” above the center of the fan. See the Intel® Pentium® II Processor Datasheet for the TPH Specification.

•Verify that all major components, including the 82443GX can be cooled the way they are placed. Contact your local Intel Field Sales representative for the following Application Note: FW82443BX/FW82443GX PCI/AGP Controller Application Note #2: Thermal Design Considerations. This thermal application note contains thermal specifications, thermal solutions and the thermal test methodology for the 82443GX component.

3.20.1Design Considerations

•Could anything block the air flow to or from the processor card (I/O cards, VRM etc.)?

•Is there anything between the processor and the air intake that may preheat the air flowing into the fan/heatsink?

•If a system fan (other than the power supply fan) is used, have all recirculation paths been eliminated?

•What is the air flow through the PSU/system fan?

•What is the maximum ambient operation temperature of the system?

3.21Mechanicals

•For the Intel® Pentium® II processor: The physical space requirements of the processor must be met. See the Intel® Pentium® II Processor Datasheet for details.

•For the Intel® Pentium® II processor: The physical space requirements of your heat sink must be met.

•For the Boxed processor: The physical space requirements of the Boxed Intel® Pentium® II Processor processor fan/heatsink must be met. See the Intel® Pentium® II Processor Datasheet for details.

Intel®440GX AGPset Design Guide

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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.

Intel 440GX manual Thermals / Cooling Solutions, Mechanicals, Design Considerations

Models: 440GX