LGA 1366 (

land grid array The land grid array (LGA) is a type of surface-mount packaging for integrated circuits (ICs) that is notable for having the pins on the socket (when a socket is used) — as opposed to pins on the integrated circuit, known as a '' pin grid array' ...

1366), also known as Socket B, is an

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...

CPU socket In computer hardware, a CPU socket or CPU slot contains one or more mechanical components providing mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows for placing and replacing the centr ...

. This socket supersedes Intel's

LGA 775 LGA 775 ( land grid array 775), also known as Socket T, is an Intel desktop CPU socket. Unlike PGA CPU sockets, such as its predecessor Socket 478, LGA 775 has no socket holes; instead, it has 775 protruding pins which touch contact points on th ...

(Socket T) in the high-end and performance desktop segments. It also replaces the server-oriented

LGA 771 LGA 771, also known as ''Socket J'', is a CPU interface introduced by Intel in 2006. It is used in Intel Core (microarchitecture), Core microarchitecture and NetBurst microarchitecture (Dempsey) based DP-capable server processors, the Dual-Cor ...

(Socket J) in the entry level and is superseded itself by

LGA 2011 LGA 2011, also called ''Socket R'', is a CPU socket by Intel released on November 14, 2011. It launched along with LGA 1356 to replace its predecessor, LGA 1366 (Socket B) and LGA 1567. While LGA 1356 was designed for dual-processor or ...

. This socket has 1,366 protruding pins which touch contact points on the underside of the processor (CPU) and accesses up to three channels of DDR3 memory via the processor's internal memory controller. Socket 1366 (Socket B) uses

Intel QuickPath Interconnect The Intel QuickPath Interconnect (QPI) is a scalable processor interconnect developed by Intel which replaced the front-side bus (FSB) in Xeon, Itanium, and certain desktop platforms starting in 2008. It increased the scalability and available b ...

(QPI) to connect the CPU to a reduced-function northbridge that serves mainly as a PCI-Express controller. A slower

DMI DMI may refer to: Organizations * Danish Meteorological Institute * Data Management Inc., a time-and-attendance software company * Dead Man Incorporated, a predominantly white prison-gang formed in Maryland * Development Media International, a ...

is used to connect Intel's most recent northbridge and southbridge components. By comparison, Intel's

LGA 1156 LGA 1156 (land grid array 1156), also known as Socket H or H1, is an Intel desktop CPU socket. The last processors supporting the LGA 1156 ceased production in 2011. It was succeeded by the mutually incompatible socket LGA 1155. LGA 1156, alon ...

(Socket H) moves the QPI link and PCI-Express controller onto the processor itself, using DMI to interface a single-component "chipset" (now called PCH) that serves traditional southbridge functions. The difference in pin number is mostly a reflection of the number of memory channels served. In November 2008, Intel released

Core i7 Intel Core is a line of multi-core (with the exception of Core Solo and Core 2 Solo) central processing units (CPUs) for midrange, embedded, workstation, high-end and enthusiast computer markets marketed by Intel Corporation. These processors ...

, which was the first processor requiring this socket. LGA 1366 socket and processors were discontinued sometime in early 2012, having been superseded by the

and

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. It's compatible with Intel ...

socket, on 14 November 2011, supporting Sandy Bridge E-series processors. The accompanying LGA 1156 was discontinued at the same time, which was replaced by

LGA 1155 LGA 1155, also called Socket H2, is a zero insertion force flip-chip land grid array (LGA) CPU socket designed by Intel for their CPUs based on the Sandy Bridge (second generation core) and Ivy Bridge (microarchitecture), Ivy Bridge (third gen ...

Socket B mechanical load limits

Socket B 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. Processors using this socket have a lower static load limit than previous models using

. Available reference heat sinks include circular design and heatpipe design.

Supported chipsets

The chipsets that support LGA 1366 are Intel's X58 (desktop) and 3400, 3420, 3450, 5500, 5520 and 7500 (server).

References

{{DEFAULTSORT:Lga 1366 Intel CPU sockets

Socket B mechanical load limits

Supported chipsets

See also

References