The Intel® 5400 Chipset is bandwidth-enhanced for dual socket performance applications for the Intel® Xeon® processor 5000 series.
Datasheet: Intel® 5400 Chipset Memory Controller Hub covers signal, register, and functional descriptions, electrical characteristics, and more.
Specification Update, 2009: Intel® 5400 Express Chipset memory controller hub (MCH), clarifications, changes, and documentation errata.
Specification Update: Intel® 6400/6402 Advanced Memory Buffer covers document changes, errata, specification changes, and clarifications.
Datasheet: Intel® 631xESB/ 632xESB I/O Controller Hub covers signal and functional descriptions, mechanical specifications, registers, and more.
Thermal and Mechanical Design Guide: Intel® 631xESB and 632xESB I/O Controller Hub.