ⓘ LGA 1356, also called Socket B2, is an Intel microprocessor socket released in Q1 2012 for the two processor segment of the server market. It supports 3 64-bit ..

                                     

ⓘ LGA 1356

LGA 1356, also called Socket B2, is an Intel microprocessor socket released in Q1 2012 for the two processor segment of the server market. It supports 3 64-bit wide DDR3 channels, whereas socket LGA 2011 supports 4 channels and socket LGA 1155 supports 2 channels.

                                     

1. Description

LGA 1356 is one of the two sockets designed as a replacement for the LGA 1366 CPU socket, the other being LGA 2011 which is known as Socket R. LGA 1356 has 1356 protruding pins to make contact with the pads on the processor. Processors of LGA 1356 and LGA 1366 sockets are not compatible with each other since they have different socket notches. It supports Intel Sandy Bridge-EN microprocessors, code-named Romley-EN and marketed as the Xeon E5-2400 series.

The main difference between LGA 2011 and LGA 1356 is 2 Intel QuickPath Interconnect QPIs connections on the LGA 2011 and 1 QPI connection on the LGA 1356. Other noticeable differences include 24 lanes of PCI Express PCI-e version 3.0 connections compared to 40 lanes on the LGA 2011, and three channels of DDR3 support compared to four on the LGA 2011. Each DDR3 channel can support one more DIMM only applicable to DDR3 and not DDR3-L.

Plans were leaked in early 2011, with estimated releases in the first quarter of 2012. In September 2011, releases were estimated to be at the end of the first quarter of 2012.

                                     

2. Socket B2 mechanical load limits

Socket B2 processors have the following mechanical maximum load limits which should not be exceeded during heatsink assembly, shipping conditions, or standard use. Load above those limits will crack the processor die and make it unusable.

Processors using this socket have the same static load limit as previous models using LGA 1366 Socket B.

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