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LGA 2011, also called ''Socket R'', is a
Intel CPU sockets use the so-called ''Independent Loading Mechanism'' (ILM) retention device to apply the specific amount of uniform pressure required to correctly hold the CPU against the socket interface. As part of their design, ILMs have differently placed protrusions which are intended to mate with cutouts in CPU packagings. These protrusions, also known as ''ILM keying'', have the purpose of preventing installation of incompatible CPUs into otherwise physically compatible sockets, and preventing ILMs to be mounted with a 180-degree rotation relative to the CPU socket.
Different variants (or generations) of the LGA 2011 socket and associated CPUs come with different ILM keying, which makes it possible to install CPUs only into generation-matching sockets. CPUs that are intended to be mounted into ''LGA 2011-0'' (R), ''LGA 2011-1'' (R2) or ''LGA 2011-v3'' (R3) sockets are all mechanically compatible regarding their dimensions and ball pattern pitches, but the designations of contacts are different between generations of the LGA 2011 socket and CPUs, which makes them electrically and logically incompatible. Original LGA 2011 socket is used for Sandy Bridge-E/EP and Ivy Bridge-E/EP processors, while LGA 2011-1 is used for Ivy Bridge-EX (Xeon E7 v2) and Haswell-EX (Xeon E7 V3) CPUs, which were released in February 2014 and May 2015, respectively. LGA 2011-v3 socket is used for Haswell-E and Haswell-EP CPUs, which were released in August and September 2014, respectively.
Two types of ILM exist, with different shapes and heatsink mounting hole patterns, both with M4 x 0.7 threads: ''square ILM'' (80×80 mm mounting pattern), and ''narrow ILM'' (56×94 mm mounting pattern). Square ILM is the standard type, while the narrow one is alternatively available for space-constrained applications. A matching heatsink is required for each ILM type.
About the new Intel Xeon E5-2600v3
(Servermeile Wiki) As one of the significant changes from the previous generation, they support DDR4 memory. All processors are released in September 8, 2014, unless noted otherwise.
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 cent ...
by Intel
Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the devel ...
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 low-end servers, LGA 2011 was designed for high-end desktops and high-performance servers. The socket has 2011 protruding pins that touch contact points on the underside of the processor.
The LGA 2011 socket uses QPI to connect the CPU to additional CPUs. DMI 2.0 is used to connect the processor to the PCH. The memory controller and 40 PCI Express
PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X and AGP bus standards. It is the common m ...
(PCIe) lanes are integrated on the CPU. On a secondary processor an extra ×4 PCIe interface replaces the DMI interface. As with its predecessor LGA 1366, there is no provisioning for integrated graphics. This socket supports four DDR3 or DDR4 SDRAM memory channels with up to three unbuffered or registered DIMMs per channel, as well as up to 40 PCI Express 2.0 or 3.0 lanes. LGA 2011 also has to ensure platform scalability beyond eight cores and 20 MB of cache.
The LGA 2011 socket is used by Sandy Bridge-E/EP and Ivy Bridge-E
''Hedera'', commonly called ivy (plural ivies), is a genus of 12–15 species of evergreen climbing or ground-creeping woody plants in the family Araliaceae, native to western, central and southern Europe, Macaronesia, northwestern Africa and ...
/EP processors with the corresponding X79 (E enthusiast class) and C600-series (EP Xeon class) chipsets. It and LGA 1155 are the two last Intel sockets to support Windows XP
Windows XP is a major release of Microsoft's Windows NT operating system. It was release to manufacturing, released to manufacturing on August 24, 2001, and later to retail on October 25, 2001. It is a direct upgrade to its predecessors, Wind ...
and Windows Server 2003
Windows Server 2003 is the sixth version of Windows Server operating system produced by Microsoft. It is part of the Windows NT family of operating systems and was released to manufacturing on March 28, 2003 and generally available on April 24, ...
.
LGA 2011-1 (Socket R2), an updated generation of the socket and the successor of LGA 1567, is used for Ivy Bridge-EX (Xeon E7 v2
Xeon ( ) is a brand of x86 microprocessors designed, manufactured, and marketed by Intel, targeted at the non-consumer workstation, server, and embedded system markets. It was introduced in June 1998. Xeon processors are based on the same arc ...
), Haswell-EX (Xeon E7 v3
Xeon ( ) is a brand of x86 microprocessors designed, manufactured, and marketed by Intel, targeted at the non-consumer workstation, server, and embedded system markets. It was introduced in June 1998. Xeon processors are based on the same a ...
) and Broadwell-EX (Xeon E7 v4) CPUs, which were released in February 2014, May 2015 and July 2016, respectively.
LGA 2011-v3 (Socket R3, also referred to as LGA 2011-3) is another updated generation of the socket, used for Haswell-E and Haswell-EP CPUs and Broadwell-E, which were released in August and September 2014, respectively. Updated socket generations are physically similar to LGA 2011, but different electrical signals, ILM keying and integration of DDR4 memory controller rather than DDR3 prevent backward compatibility with older CPUs.
In the server market, it was succeeded by LGA 3647
LGA 3647 is an Intel microprocessor compatible socket used by Xeon Phi x200 ("Knights Landing"), Xeon Phi 72x5 ("Knights Mill"), Skylake-SP, Cascade Lake-SP/AP, and Cascade Lake-W microprocessors.
The socket supports a 6-channel memory co ...
, when in high-end desktop and workstation markets its successor is LGA 2066
LGA 2066, also called ''Socket R4'', is a CPU socket by Intel that debuted with Skylake-X and Kaby Lake-X processors in June 2017. It replaces Intel's LGA 2011-3 (R3) in the performance, high-end desktop and Workstation platforms (based on the ...
. Xeon E3 family of processors, later renamed Xeon E, uses consumer-grade sockets.
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Physical design and socket generations
Intel CPU sockets use the so-called ''Independent Loading Mechanism'' (ILM) retention device to apply the specific amount of uniform pressure required to correctly hold the CPU against the socket interface. As part of their design, ILMs have differently placed protrusions which are intended to mate with cutouts in CPU packagings. These protrusions, also known as ''ILM keying'', have the purpose of preventing installation of incompatible CPUs into otherwise physically compatible sockets, and preventing ILMs to be mounted with a 180-degree rotation relative to the CPU socket.
Different variants (or generations) of the LGA 2011 socket and associated CPUs come with different ILM keying, which makes it possible to install CPUs only into generation-matching sockets. CPUs that are intended to be mounted into ''LGA 2011-0'' (R), ''LGA 2011-1'' (R2) or ''LGA 2011-v3'' (R3) sockets are all mechanically compatible regarding their dimensions and ball pattern pitches, but the designations of contacts are different between generations of the LGA 2011 socket and CPUs, which makes them electrically and logically incompatible. Original LGA 2011 socket is used for Sandy Bridge-E/EP and Ivy Bridge-E/EP processors, while LGA 2011-1 is used for Ivy Bridge-EX (Xeon E7 v2) and Haswell-EX (Xeon E7 V3) CPUs, which were released in February 2014 and May 2015, respectively. LGA 2011-v3 socket is used for Haswell-E and Haswell-EP CPUs, which were released in August and September 2014, respectively.
Two types of ILM exist, with different shapes and heatsink mounting hole patterns, both with M4 x 0.7 threads: ''square ILM'' (80×80 mm mounting pattern), and ''narrow ILM'' (56×94 mm mounting pattern). Square ILM is the standard type, while the narrow one is alternatively available for space-constrained applications. A matching heatsink is required for each ILM type.
Chipsets
Information for the Intel X79 (for desktop) and C600 series (for workstations and servers, codenamed Romley) chipsets is in the table below. The Romley (EP) platform was delayed approximately one quarter, allegedly due to aSAS
SAS or Sas may refer to:
Arts, entertainment, and media
* ''SAS'' (novel series), a French book series by Gérard de Villiers
* ''Shimmer and Shine'', an American animated children's television series
* Southern All Stars, a Japanese rock ba ...
controller bug.
The X79 appears to contain the same silicon as the C600 series, with ECS
ECS may refer to:
Education
* Education Commission of the States, in the United States
* Engleside Christian School, in Alexandria, Virginia, United States
* Etowah City School in Etowah, Tennessee, United States
* Evangelical Christian Sch ...
having enabled the SAS controller for one of their boards, even though SAS is not officially supported by Intel for X79.
Compatible processors
Desktop processors
Desktop processors compatible with LGA 2011, 2011–3 socket are Sandy Bridge-E,Ivy Bridge-E
''Hedera'', commonly called ivy (plural ivies), is a genus of 12–15 species of evergreen climbing or ground-creeping woody plants in the family Araliaceae, native to western, central and southern Europe, Macaronesia, northwestern Africa and ...
, Haswell-E and Broadwell-E
Broadwell is the fifth generation of the Intel Core Processor. It is Intel's codename for the 14 nanometer die shrink of its Haswell microarchitecture. It is a "tick" in Intel's tick–tock principle as the next step in semiconductor fabri ...
.
* Sandy Bridge-E and Ivy Bridge-E processors are compatible with the Intel X79 chipset.
* Haswell-E and Broadwell-E processors are compatible with the Intel X99 chipset.
*All models support: MMX, SSE, SSE2
SSE2 (Streaming SIMD Extensions 2) is one of the Intel SIMD (Single Instruction, Multiple Data) processor supplementary instruction sets first introduced by Intel with the initial version of the Pentium 4 in 2000. It extends the earlier SSE ins ...
, SSE3
SSE3, Streaming SIMD Extensions 3, also known by its Intel code name Prescott New Instructions (PNI), is the third iteration of the SSE instruction set for the IA-32 (x86) architecture. Intel introduced SSE3 in early 2004 with the Prescott revi ...
, SSSE3
Supplemental Streaming SIMD Extensions 3 (SSSE3 or SSE3S) is a SIMD instruction set created by Intel and is the fourth iteration of the SSE technology.
History
SSSE3 was first introduced with Intel processors based on the Core microarchitectu ...
, SSE4.1, SSE4.2
SSE4 (Streaming SIMD Extensions 4) is a SIMD CPU instruction set used in the Intel Core microarchitecture and AMD K10 (K8L). It was announced on September 27, 2006, at the Fall 2006 Intel Developer Forum, with vague details in a white paper; more ...
, AVX AVX may refer to:
Technology
* Advanced Vector Extensions, an instruction set extension in the x86 microprocessor architecture
** AVX2, an expansion of the AVX instruction set
** AVX-512, 512-bit extensions to the 256-bit AVX
* AVX Corporation, ...
, Enhanced Intel SpeedStep Technology (EIST), Intel 64
x86-64 (also known as x64, x86_64, AMD64, and Intel 64) is a 64-bit version of the x86 instruction set, first released in 1999. It introduced two new modes of operation, 64-bit mode and compatibility mode, along with a new 4-level paging ...
, XD bit (an NX bit
The NX bit (no-execute) is a technology used in CPUs to segregate areas of memory for use by either storage of processor instructions or for storage of data, a feature normally only found in Harvard architecture processors. However, the NX bit is ...
implementation), TXT, Intel VT-x
x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU.
In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-a ...
, Intel VT-d, Turbo Boost, AES-NI, Smart Cache, Hyper-threading, except the C1 stepping models, which lack VT-d.
* Sandy Bridge-E, Ivy Bridge-E and Haswell-E processors are not bundled with standard air-cooled CPU coolers. Intel is offering a standard CPU cooler, and a liquid-cooled
Liquid cooling refers to cooling by means of the convection or circulation of a liquid.
Examples of liquid cooling technologies include:
* Cooling by convection or circulation of coolant, including water cooling
* Liquid cooling and ventilatio ...
CPU cooler, which are both sold separately.
1 The X79 chipset allows for increasing the base clock (BCLK), Intel calls it CPU Strap, by 1.00×, 1.25×, 1.66× or 2.50×. The CPU frequency is derived by the BCLK times the CPU multiplier.
Server processors
Server processors compatible with LGA 2011 socket are Sandy Bridge-EP,Ivy Bridge-E
''Hedera'', commonly called ivy (plural ivies), is a genus of 12–15 species of evergreen climbing or ground-creeping woody plants in the family Araliaceae, native to western, central and southern Europe, Macaronesia, northwestern Africa and ...
, Haswell-E and Broadwell-E
Broadwell is the fifth generation of the Intel Core Processor. It is Intel's codename for the 14 nanometer die shrink of its Haswell microarchitecture. It is a "tick" in Intel's tick–tock principle as the next step in semiconductor fabri ...
.
* All models support: MMX, SSE, SSE2
SSE2 (Streaming SIMD Extensions 2) is one of the Intel SIMD (Single Instruction, Multiple Data) processor supplementary instruction sets first introduced by Intel with the initial version of the Pentium 4 in 2000. It extends the earlier SSE ins ...
, SSE3
SSE3, Streaming SIMD Extensions 3, also known by its Intel code name Prescott New Instructions (PNI), is the third iteration of the SSE instruction set for the IA-32 (x86) architecture. Intel introduced SSE3 in early 2004 with the Prescott revi ...
, SSSE3
Supplemental Streaming SIMD Extensions 3 (SSSE3 or SSE3S) is a SIMD instruction set created by Intel and is the fourth iteration of the SSE technology.
History
SSSE3 was first introduced with Intel processors based on the Core microarchitectu ...
, SSE4.1, SSE4.2
SSE4 (Streaming SIMD Extensions 4) is a SIMD CPU instruction set used in the Intel Core microarchitecture and AMD K10 (K8L). It was announced on September 27, 2006, at the Fall 2006 Intel Developer Forum, with vague details in a white paper; more ...
, AVX AVX may refer to:
Technology
* Advanced Vector Extensions, an instruction set extension in the x86 microprocessor architecture
** AVX2, an expansion of the AVX instruction set
** AVX-512, 512-bit extensions to the 256-bit AVX
* AVX Corporation, ...
, Enhanced Intel SpeedStep Technology (EIST), Intel 64
x86-64 (also known as x64, x86_64, AMD64, and Intel 64) is a 64-bit version of the x86 instruction set, first released in 1999. It introduced two new modes of operation, 64-bit mode and compatibility mode, along with a new 4-level paging ...
, XD bit (an NX bit
The NX bit (no-execute) is a technology used in CPUs to segregate areas of memory for use by either storage of processor instructions or for storage of data, a feature normally only found in Harvard architecture processors. However, the NX bit is ...
implementation), TXT, Intel VT-x
x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU.
In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-a ...
, Intel VT-d, AES-NI, Smart Cache. Not all support Hyper-threading and Turbo Boost.
Sandy Bridge-EP (Xeon E5)
Ivy Bridge-EP (Xeon E5 v2)
Ivy Bridge-EX (Xeon E7 v2)
All processors are released in February 18, 2014, unless noted otherwise.Haswell-EP (Xeon E5 v3)
Server processors for the LGA 2011-v3 socket are listed in the tables below.(Servermeile Wiki) As one of the significant changes from the previous generation, they support DDR4 memory. All processors are released in September 8, 2014, unless noted otherwise.
Haswell-EX (Xeon E7 v3)
Socket LGA 2011-1 is used for Ivy Bridge-EX (Xeon E7 v2) and Haswell-EX (Xeon E7 V3) CPUs, which were released in February 2014 and May 2015, respectively. All processors are released in May 6, 2015, unless noted otherwise.Broadwell-EP (Xeon E5 v4)
Server processors for the LGA 2011-v3 socket are listed in the tables below. These processors are built onBroadwell-E
Broadwell is the fifth generation of the Intel Core Processor. It is Intel's codename for the 14 nanometer die shrink of its Haswell microarchitecture. It is a "tick" in Intel's tick–tock principle as the next step in semiconductor fabri ...
architecture, 14nM lithography, 4-channel DDR4 ECC with up to 1.5TB and 40-lanes of PCI Express 3.0. E5-16xx v4 do not have QPI links. E5-26xx v4 and E5-46xx 4 processors have 2 QPI links.
Broadwell-EX (Xeon E7 v4)
References
{{Intelsock Intel CPU sockets