Intel® E8870 ChipsetTechnical Documents

This document -- Intel® 82870P2 PCI/PCI-X 64-bit Hub 2 (P64H2) Datasheet -- describes the basic features, modes and registers supported by the P64H2, as well as signal descriptions and electrical and mechanical specifications.

File Type/Size:  PDF 1610KB

This datasheet is intended for Original Equipment Manufacturers and BIOS vendors creating ICH4-based products. This datasheet assumes a working knowledge of the vocabulary and principles of USB, IDE, AC ?97, SMBus, PCI, ACPI and LPC.

File Type/Size:  PDF 6851KB

• Intel® 82801DB I/O Controller Hub (ICH4) / Intel® 82801DBL I/O Controller Hub 4-L (ICH4-L)
• Intel® 845GE/845PE Chipset Datasheet: Intel® 82845GE Graphics and Memory Controller Hub (GMCH) / Intel® 82845PE Memory Controller Hub (MCH)

The Intel® E8870 chipset Scalable Node Controller (SNC) is the central component in the processor/memory sub-system, with interfaces to the processor, memory subsystem, firmware and two scalability ports for access to I/O and remote memory. This document describes the basic features, modes and registers supported by the SNC, as well as signal descriptions and electrical and mechanical specifications.

File Type/Size:  PDF 3596KB

The DDR Memory Hub (DMH) is a memory translator hub that provides a mechanism for tunneling DDR SDRAM transactions between a main channel and two branch channels. This document describes the basic features, modes and registers supported by the DMH, as well as signal descriptions and electrical and mechanical specifications.

File Type/Size:  PDF 1141KB

The E8870IO Server Input/Output Hub is the central component of the I/O subsystem for Intel® E8870 chipset-based servers. This component provides the connection between four hub interface 2.0 ports and two scalability ports. This document describes the basic features, modes and registers supported by the SIOH, as well as signal descriptions and electrical and mechanical specifications.

File Type/Size:  PDF 1894KB

File Type/Size:  PDF 706KB

This document -- Intel® 82870P2 PCI/PCI-X 64-bit Hub 2 (P64H2) Specification Update -- is an update to the document entitled "Intel® 82870P2 PCI/PCI-X 64-bit Hub 2 (P64H2) Datasheet." This document is a compilation of device / documentation errata, specification clarifications and changes specific to the P64H2.

File Type/Size:  PDF 179KB

• Intel® 82870P2 PCI/PCI-X 64-bit Hub 2 (P64H2) Datasheet

This document is a compilation of errata, specification clarifications and changes. It is intended for hardware system manufacturers and software developers of applications, operating systems and tools.

File Type/Size:  PDF 323KB

Intel E8870 system components permit the efficient manufacture of small and large configurations. Advantages built into the chipset ensure reliability, serviceability and performance.

File Type/Size:  PDF 680KB