LGA

LGA may refer to:

LGA 1567

LGA 1567 or Socket LS, is a CPU socket used for the high-end server segment. It has 1567 protruding pins to make contact with the pads on the processor. It supports Intel Nehalem, codenamed Beckton, Xeon 7500 and Xeon 6500 series processors first released in March 2010. The 6500 series is scalable up to 2 sockets, while the 7500 series is scalable up to 4/8 sockets on a supporting motherboard.

Later on, the Xeon E7 series using the Westmere-EX architecture reused the same socket.

See also

References

LGA 775

LGA 775, also known as Socket T, is an Intel desktop CPU socket. LGA stands for land grid array. Unlike earlier common CPU sockets, such as its predecessor Socket 478, the LGA 775 has no socket holes; instead, it has 775 protruding pins which touch contact points on the underside of the processor (CPU).

The socket was superseded by the LGA 1156 (Socket H) and LGA 1366 (Socket B) sockets.

Technical specifications

The Prescott and Cedar Mill Pentium 4 cores, as well as the Smithfield and Presler Pentium D cores, used the LGA 775 socket. In July 2006, Intel released the desktop pota of the Core 2 Duo (codenamed Conroe), which also uses this socket, as does the subsequent Core 2 Quad. Intel changed from Socket 478 to LGA 775 because the new pin type offers better power distribution to the processor, allowing the front-side bus to be raised to 1600 MT/s. The 'T' in Socket T was derived from the now cancelled Tejas core, which was to replace the Prescott core. Another advantage for Intel with this newer architecture is that it is now the motherboard which has the pins, rather than the CPU, transferring the risk of pins being bent from the CPU to the motherboard. The CPU is pressed into place by a "load plate", rather than human fingers directly. The installer lifts the hinged "load plate", inserts the processor, closes the load plate over the top of the processor, and pushes down a locking lever. The pressure of the locking lever on the load plate clamps the processor's 775 copper contact points firmly down onto the socket's 775 pins, ensuring a good connection. The load plate only covers the edges of the top surface of the CPU (integrated heat spreader). The center is free to make contact with the cooling device placed on top of the CPU.