LGA 1356

LGA 1356, also called Socket B2, is an Intel microprocessor socket released in Q1 2012 with 1356 Land Grid Array pins. It launched alongside LGA 2011 to replace its predecessor, LGA 1366 (Socket B) and LGA 1567.[1] It's compatible with Intel Sandy Bridge-EN (also known as Romley-EN) and Ivy Bridge-EN microprocessors.

LGA 1356
TypeLGA
Contacts1356
FSB protocolIntel QuickPath Interconnect
FSB frequency1× QuickPath
ProcessorsSandy Bridge-EN
Ivy Bridge-EN
PredecessorLGA 1366, LGA 1567
SuccessorLGA 2066, LGA 3647
Memory supportDDR3
This article is part of the CPU socket series

Description

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.

While LGA 2011 was designed for high-end desktops and high-performance servers, LGA 1356 was designed for the dual-processor and low-end segment of the server market.

It supports 64-bit wide DDR3 triple channel memory, and equipped with 1 Intel QPI connection and 24 PCI Express lanes. Meanwhile LGA 2011 supports quad channel memory, 2 QPI connections and 40 PCIe lanes. Socket LGA 1155, desktop socket of the same generation supports dual channel memory. Each DDR3 channel can support one more DIMM (only applicable to DDR3 and not DDR3-L).[2]

Plans were leaked in early 2011, with estimated releases in the first quarter of 2012.[3] In September 2011, releases were estimated to be at the end of the first quarter of 2012.[4]

Physical design

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. The limits are included in the table below.

Location Dynamic Static
IHS Surface 890 N (200 lbf) 266 N (60 lbf)

Processors using this socket have the same static load limit as previous models using LGA 1366 (Socket B).[5]

Compatible processors

Sandy Bridge-EN
Main article: Sandy Bridge-EN
Socket Model Cores

(threads)

 L3Cache CPU clock rate Interface Supported

memory

 TDP Release

date

 Price

(USD)

Standard Turbo
LGA 1356

Dual Socket

 Xeon E5 2470 v2 10 (20) 25MB 2.4GHz 3.2GHz 1× QPI

DMI 2.0

24× PCI-E 3.0

 3× DDR3-1600 95W Q1 2014 $1440
2470 8 (16) 20MB 2.3GHz 3.1GHz May 14, 2012
2450 2.1GHz 2.9GHz $1106
2450L 1.8GHz 2.3GHz 70W
2450Lv2 10 (20) 25MB 1.7GHz 2.1GHz 60W Q1 2014 $1219
2448L 8 (16) 20MB 1.8GHz 2.1GHz 70W May 14, 2012 $1151
2449L 1.4GHz 1.8GHz 50W OEM
2440 6 (12) 15MB 2.4GHz 2.9GHz 3× DDR3-1333 95W $834
2430 2.2GHz 2.7GHz $551
2420 1.9GHz 2.4GHz $388
2430L 2.0GHz 2.5GHz 60W $662
2428L 1.8GHz 2.0GHz $628
2418L 4 (8) 10MB 2.0GHz 2.1GHz 50W $387
2407 4 (4) 2.2GHz N/A 3x DDR3-1066 80W $250
2403 1.8GHz $192
LGA 1356 1428L 6 (12) 15MB 1.8GHz 3x DDR3-1333 60W $395
1410 4 (8) 10MB 2.8GHz 3.2GHz 80W N/A
Pentium 1407 2 (2) 5MB 2.8GHz N/A 3x DDR3-1066
1403 2.6GHz
1405 1.2GHz 1.8GHz 40W 2012-08 $143

Ivy Bridge-EN
Main article: Intel_Ivy_Bridge-based_Xeon_microprocessors § Ivy_Bridge-EN

See also

References
  1. Real World Technologies (September 25, 2010). "Real World Technologies - Intel's Sandy Bridge Microarchitecture". Realworldtech.com. Retrieved August 22, 2011.
  2. Hiroshige Goto (April 9, 2010). "Sandy Bridge Interface" (PDF). PC Watch website. Archived from the original (PDF) on September 28, 2011. Retrieved November 12, 2011.
  3. Gennadiy Shvets (February 8, 2011). "Details on Intel Xeon E5 product families". CPU World news. Retrieved November 12, 2011.
  4. Theo Valich (September 9, 2011). "Intel Romley Delayed to End of Q1 2012? Chipset, CPU Issues Cited". Bright side of news. Retrieved November 12, 2011.
  5. page 30. From "Intel® Xeon® Processor E5-2400 Product Family Thermal/Mechanical Design Guide" by Intel
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