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Socket 7
Specifications
Type ZIF
Chip form factors PPGA, CPGA
Contacts 321
Bus Protocol P5
FSB 66 - 83 MHz System Clock
Voltage range 2. 5V - 3. 5V
Processors 75-233 MHz Intel Pentium, AMD K5 through K6, Cyrix 6x86 (and MX) P120 - P233

This article is part of the CPU socket series

Socket 7 is a physical and electrical specification for an x86-style CPU socket on a personal computer motherboard. A CPU socket or CPU slot is a connector on a computer's Motherboard that accepts a CPU and forms an electrical interface with it See also X86 assembly language The generic term x86 refers to the most commercially successful Instruction set architecture in the history of Personal A motherboard is the central or primary Printed circuit board (PCB making up a complex electronic system such as a modern Computer or Laptop The socket supersedes the earlier Socket 5, and accepts Pentium microprocessors manufactured by Intel, as well as compatibles made by Cyrix/IBM, AMD, IDT and others. Socket 5 was created for the second generation of Intel Pentium processors operating at speeds from 75 to 133 MHz as well as certain Pentium OverDrive processors The Pentium brand refers to Intel 's single-core x86 Microprocessor based on the P5 fifth-generation Microarchitecture. A microprocessor incorporates most or all of the functions of a Central processing unit (CPU on a single Integrated Cyrix was a CPU manufacturer that began in 1978 in Richardson Texas as a specialist supplier of high-performance math co-processors for 286 and International Business Machines Corporation abbreviated IBM and nicknamed "Big Blue", is a multinational Computer Technology

Socket 7 was the only socket that accepted such a wide range of CPUs, (range of speeds and CPUs from different manufacturers).

Differences between Socket 5 and Socket 7 are that Socket 7 has an extra pin and is designed to provide dual split rail voltage, as opposed to Socket 5's single voltage. (However, not all motherboard manufacturers supported the dual voltage on their boards initially. ) Socket 7 is backwards compatible; a Socket 5 CPU can be placed in a Socket 7 motherboard. In Technology, especially Computing (irrespective of platform a product is said to be backward compatible when it is able to take the place of an older product

Supported processors include: 2. 5V - 3. 5V Pentium 75-200 MHz and Pentium MMX 166-233 MHz, AMD K5 through K6, Cyrix 6x86 (and MX) P120 - P233, the entire IDT WinChip series (180-250 MHz) and the Rise Technology MP6 family

Socket 7 uses a SPGA socket, either a 296 pin LIF arranged at 37x37 (which is very rare), or the much more common 321 pin ZIF arranged at 19x19. The K5 was AMD's first x86 processor developed entirely in-house introduced in March 1996 The K6 microprocessor was launched by AMD in 1997 The main advantage of this particular microprocessor is that it was designed to fit into existing desktop designs for The Cyrix 6x86 (codename M1 is a sixth-generation 32-bit 80x86 -compatible Microprocessor designed by Cyrix and manufactured by IBM The WinChip series was a low-power Socket 7 -based X86 processor designed by Centaur Technology and marketed by its parent company Rise Technology, was a short lived Microprocessor manufacturer that produced the Intel X86 MMX compatible MP6 processor A staggered pin grid array (SPGA refers to a style of arranging pins on an Integrated circuit package Low-insertion-force sockets (LIF are integrated circuit sockets that are designed so the force required to insert or remove a package is low ZIF is an acronym for zero insertion force, a concept used in the design of IC sockets invented to avoid problems caused by applying force upon insertion and

An extension, Super Socket 7, was designed to allow the AMD K6-2 and AMD K6-III chips to operate at a higher clock rate and use AGP. The Super Socket 7, also referred to as Super 7, is an extension of the Socket 7 ZIF socket specification The K6-2 was an X86 Microprocessor introduced by AMD on May 28 1998 and available in speeds ranging from 266 to 550 MHz. The K6-III, code-named "Sharptooth" was an X86 Microprocessor manufactured by AMD, which was the last

References

This article was originally based on material from the Free On-line Dictionary of Computing, which is licensed under the GFDL. The Free On-line Dictionary of Computing ( FOLDOC) is an online searchable encyclopedic Dictionary of Computing subjects The GNU Free Documentation License ( GNU FDL or simply GFDL) is a Copyleft License for free documentation designed by the Free Software


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