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The Intel® 865G chipset is designed for use in a desktop system based on an Intel® PenTIum® 4 processor or the processor code named Prescott and supports FSB frequencies of 400 MHz,533 MHz, and 800 MHz. The 865G chipset contains two main components: Graphics and Memory Controller Hub (GMCH) for the host bridge and I/O Controller Hub for the I/O subsystem. The 865G chipset uses either the 82801EB ICH5 or 82801ER ICH5R for the I/O Controller Hub. This document is the datasheet for the 82865G Graphics and Memory Controller Hub (GMCH) component.The Intel® 865G chipset platform supports the following processors:• Intel® PenTIum® 4 processor with 512-KB L2 Cache on 0.13 micron process in the 478-pinpackage.• Processor coded named Prescott. The processor code named Prescott returns a processorsignature of 00000F3xh when the CPUID instrucTIon is executed with EAX=1.
