- For the Intel® 82Q965, 82Q963, 82G965 Graphics and Memory Controller Hub (GMCH) and Intel® 82P965 Memory Controller Hub (MCH)

Introduction
The Intel® Q965/Q963/G965G/P965 Express chipsets are designed for use with the Intel® Core™2 Duo desktop processor, Intel® Pentium® D processor, and Intel® Pentium® 4 processor based platforms. Each chipset contains two components: GMCH (or MCH) for the host bridge and I/O Controller Hub 8 (ICH8) for the I/O subsystem. The 82Q965 GMCH is part of the Q965 Express chipset, 82Q963 GMCH is part of the Q963 Express chipset, 82G965 GMCH is part of the G965 Express chipset, and 82P965 MCH is part of the P965 Express chipset. The ICH8 is the eighth generation I/O Controller Hub and provides a multitude of I/O related functions. The following figures show example system block diagrams for the Q965, Q963, G965, and P965 Express chipsets.
This document is the datasheet for the Intel® 82Q965 Graphics and Memory Controller Hub (GMCH), Intel® 82Q963 Graphics and Memory Controller Hub (GMCH), Intel® 82G965 Graphics and Memory Controller Hub (MCH), and Intel® 82P965 Memory Controller Hub (MCH). Topics covered include; signal description, system memory map, PCI register description, a description of the (G)MCH interfaces and major functional units, electrical characteristics, ballout definitions, and package characteristics.