# LGA 2011-0

> Intel CPU socket for server and high-end desktop (original version, released 2011)

**Wikidata**: [Q748697](https://www.wikidata.org/wiki/Q748697)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/LGA_2011)  
**Source**: https://4ort.xyz/entity/lga-2011-0

## Summary
LGA 2011-0 is an Intel CPU socket introduced in 2011 for server and high-end desktop computers, serving as the original variant of the LGA 2011 platform before being succeeded by updated versions. It replaced multiple prior socket types and enabled high-performance computing through its land grid array design.

## Key Facts
- Released in 2011 as the original LGA 2011 socket variant
- Replaced LGA 1366, LGA 1356, and LGA 1567 sockets
- Used in server computers and high-end desktop computers
- Followed by LGA 2066, LGA 3647, and LGA 2011-v3 sockets
- Manufactured by Intel Corporation
- Also known as Socket R, FCLGA2011, LGA2011, and original LGA 2011
- Sitelink count: 19 (across knowledge sources)

## FAQs
### Q: What processors use the LGA 2011-0 socket?
A: The LGA 2011-0 socket supports Intel's Sandy Bridge-EP (Xeon E5-2600) and Sandy Bridge-EX (Xeon E7-2800/8800/9800) server processors, designed for high-performance computing tasks and data center workloads.

### Q: How does LGA 2011-0 differ from LGA 2011-v3?
A: LGA 2011-0 is the original 2011 release, while LGA 2011-v3 is a 2014 revision with an altered socket layout and pin count, making the two mechanically and electrically incompatible despite similar naming conventions.

### Q: What systems typically employ LGA 2011-0?
A: Socket 2011-0 is primarily used in enterprise server platforms and high-performance desktop workstations requiring multi-core CPUs, high memory bandwidth, and PCIe lane scalability for virtualization and intensive computing applications.

### Q: What does the "2011-0" designation signify?
A: The "2011" denotes the release year, while the "-0" indicates it's the original version of the LGA 2011 socket platform, later revised with "-v3" for Haswell-EP/E5 v3 processors.

### Q: Which sockets did LGA 2011-0 supersede?
A: LGA 2011-0 replaced LGA 1366 (Nehalem-EP), LGA 1356 (Westmere-EP), and LGA 1567 (Dunnington-EX) sockets as Intel's flagship server platform.

## Why It Matters
LGA 2011-0 represented a significant evolution in Intel's server socket technology, introducing quad-channel memory support, more PCIe lanes, and higher core counts compared to predecessors. It enabled advancements in virtualization, cloud computing, and high-performance data centers during its deployment. By consolidating multiple socket architectures (1366/1356/1567) into a single platform, it simplified hardware design and reduced upgrade costs for enterprise systems. Despite being superseded, it established architectural foundations for Intel's subsequent server socket iterations and remains relevant in legacy enterprise infrastructure today.

## Notable For
- First Intel socket to support quad-channel DDR3 memory for servers and HEDT
- Unified platform replacing three distinct server socket types (1366, 1356, 1567)
- Original 2011 release preceding major revisions (LGA 2011-v3) and successors (LGA 2066/LGA 3647)
- Supported Intel's first 10-core Xeon processors (E7-8890 v1) for extreme computing workloads
- Mechanical redesign from LGA 1366 (1366 pins) to LGA 2011-0 (2011 pins) enabling higher pin density

## Body
### Overview
LGA 2011-0 is a land grid array CPU socket developed by Intel for server and high-end desktop systems. It launched in 2011 as the inaugural variant of the LGA 2011 platform, adopting a 2011-pin design to support increased power delivery and signal integrity for multi-core processors.

### Release History
- **2011**: Original LGA 2011-0 socket released with Sandy Bridge-EP/Xeon E5-2600 and Sandy Bridge-EX/Xeon E7-2800/8800/9800 CPUs
- **2013**: Partially succeeded by LGA 2011-v3 (Haswell-EP) but remained active for compatible platforms
- **2017**: LGA 2066 (Skylake-X) and LGA 3647 (Skylake-SP) became primary successors for new server systems

### Technical Specifications
- **Pin Count**: 2,01 gold-plated contact pads (LGA configuration)
- **Memory Support**: Quad-channel DDR3 ECC memory, maximum memory bandwidth up to 51.2 GB/s
- **PCIe Lanes**: Up to 40 PCIe 3.0 lanes (configurable via chipset)
- **Power Delivery**: Designed for CPUs with TDP up to 150W
- **Socket Orientation**: Zero Insertion Force (ZIF) socket compatible with CPU coolers using LGA 2011 mounting patterns

### Compatibility Notes
- Physically and electrically incompatible with LGA 2011-v3 due to altered pin placement
- Only supports 1st generation Xeon E5/E7 processors (Sandy Bridge-EP/EX)
- Compatible with server chipsets Intel X79 (HEDT) and C600/C602/C604/C606 (server)

### Platform Significance
Enabled Intel's shift toward unified server/desktop socket architectures, paving the way for scalable multi-socket configurations in data centers. Its quad-channel memory support and high PCIe lane counts improved virtualization performance and storage bandwidth, addressing growing demands in cloud computing infrastructure.

```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "LGA 2011-0",
  "description": "Intel CPU socket for server and high-end desktop computers (original version released 2011)",
  "url": "https://en.wikipedia.org/wiki/LGA_2011",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q3918830",
    "https://en.wikipedia.org/wiki/LGA_2011",
    "https://commons.wikimedia.org/wiki/Special:FilePath/Socket_2011_IMGP3918.jpg"
  ],
  "additionalType": "CPU socket",
  "manufacturer": "Intel Corporation"
}

## References

1. Freebase Data Dumps. 2013