Processor sockets

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In computer hardware, a CPU socket providing mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows for placing and replacing the central processing unit (CPU) without soldering.

For chips with a large number of pins, zero insertion force (ZIF) sockets are preferred


 Zero insertion force (ZIF) socket wth Pin Grid Array (PGA)

Common sockets include Pin Grid Array (PGA) or Land Grid Array (LGA). These designs apply a compression force once either a handle (PGA type) or a surface plate (LGA type) is put into place.



Pin Grid Array (PGA) Chip


Ball Grid Array (BGA) Chip

This provides superior mechanical retention while avoiding the risk of bending pins when inserting the chip into the socket. Certain devices use Ball Grid Array (BGA) sockets, although these require soldering and are generally not considered user replaceable.


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