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The Platform Controller Hub (PCH) is a family of Intel's single-chip chipsets, first introduced in 2009. It is the successor to the Intel Hub Architecture, which used two chips–a northbridge and southbridge, and first appeared in the Intel 5 Series. The PCH controls certain data paths and support functions used in conjunction with Intel CPUs.
The Intel X79 (codenamed Patsburg) is a Platform Controller Hub (PCH) designed and manufactured by Intel for their LGA 2011 (Socket R) and LGA 2011-1 (Socket R2).. Socket and chipset support CPUs targeted at the high-end desktop (HEDT) and enthusiast segments of the Intel product lineup: Core i7-branded and Xeon-branded processors from the Sandy Bridge and Ivy Bridge CPU architectures.
Note that the 82870P2 chips of E7500, E7501 and E7505 were initially designed for the Intel 870 chipset for Itanium 2, and that the summary page of the E7320 datasheet incorrectly claims three PCI Express interfaces.
The PCIe 2.0 lanes from the PCH ran at 5 GT/s in this series, unlike in the previous LGA 1156 chips. [ 77 ] The Cougar Point Intel 6 series chipsets with stepping B2 were recalled due to a hardware bug that causes their 3 Gbit/s Serial ATA to degrade over time until they become unusable.
Emerald Rapids is the codename for Intel's fifth generation Xeon Scalable server processors based on the Intel 7 node. [3] [4] Emerald Rapids CPUs are designed for data centers; the roughly contemporary Raptor Lake is intended for desktop and mobile usage.
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Typically in server platforms, CPUs are the PECI slaves and Platform Controller Hub (PCH) is the PECI master, meanwhile in client segment, CPU is usually the PECI slave and EC/BMC is the PECI master. PECI was introduced in 2006 with the Intel Core 2 Duo microprocessors .
IHA is now considered obsolete and no longer used, being superseded by the Direct Media Interface architecture. The Platform Controller Hub (PCH) providing most of the features previously seen in ICH chips while moving memory, graphics and PCI Express controllers to the CPU, introduced with the Intel 5 Series chipsets in 2009.