CPU socket

A processor socket (English: CPU socket ) is a slot device for computer processors to interchangeably fit a processor on a motherboard or SBC.

Details

By using a base, it is possible in a simple manner, computer systems of different power ( and at different prices ) offer. In addition, a base simplifies the replacement of the processor in case of failure or during an upgrade.

In the early days of microprocessor development, the same base were for processors used as for standard logic ICs, so-called dual inline socket with a different number of pins, starting with 16-port to the Intel 4004 up to 64 pins, such as the Motorola 68000.

The ever-increasing complexity of CPUs made ​​more and more connections are required, and rising clock frequencies, however, led soon to the fact that this construction was no longer suitable. Therefore, special housing types and associated skirting have been developed, such as for PGA or PLCC package. This usually square base were also used in other complex logic chips and have been used with more and more pins to 80486.

However, the 80486 processors with its 168-237 Pins attention to the limits of handling such a simple base, because they require enormous forces when plugging in or pulling out (about 1 to 2 N press force per pin ), where sometimes even the ceramic housing of the processors to break or went boards and base were damaged. This led to the development of structures, which are now used as the processor socket.

A distinction is made between:

  • PGA: Pin Grid Array - the contacts (pins ) are arranged in a grid;
  • SPGA: Staggered Pin Grid Array - the contacts are staggered;

This processor enclosure are used in:

  • LIF socket: Low Insertion Force - the processor must be forcibly pressed into the base ( about 0.3 to 0.8 N press force per pin).
  • ZIF socket Zero Insertion Force - the processor socket comes with a lever locked and unlocked, so that the processor can be used without any effort.

Other types are:

  • Slot: A slot is a circuit board connector in which a processor card is inserted on which the processor core and the cache blocks are soldered.
  • LGA: Land Grid Array - the base has sprung contact pins, which tap into the inserted condition contact surfaces, so-called country, the processor housing.

A special position is occupied by the BGA (Ball Grid Array ), whose hemispherical contacts are made of solder and soldered in production exclusively.

X86/IA32-Prozessoren

In the following chapter the base of the x86/IA32-Prozessoren are listed.

Intel

Below the base of the Intel processors are listed.

AMD

Below the base of the AMD processors are listed.

VIA Technologies

Below the base of the components VIA Technologies are listed.

Intel Architecture -64 processors

In the following table are shown the Intel Architecture -64 processors.

Other architectures

SPARC

SPARC

PowerPC

PowerPC

DEC Alpha and

Below the base of the processors of DEC Alpha are listed.

Chip carrier Cache (computing) Socket 1 Socket 2 Socket 3 Socket 6 Socket 4 Socket 5 Socket 7 Socket 8 Celeron Slot 1 Socket 479 Socket M Socket 370 Slot 2 Socket 603 Socket 604 LGA 771 Socket 423 Socket 478 LGA 1156 Socket 939 LGA 1366 AMD K5 AMD K6 Slot A Socket A Socket 563 Sempron Socket 754 Socket S1 Socket 940 Socket F Opteron AMD Turion AMD Phenom Phenom II Athlon II Socket FM1 Cyrix VIA C3 Itanium#Architecture PAC418 PAC611 List of AMD microprocessors List of Intel microprocessors List of microprocessors Socket G34
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