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Socket 3

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This article is about a CPU socket. For the variant of an expansion card socket, see M.2 § Form factors and keying. Series of CPU sockets
Socket 3
TypeZIF
Chip form factorsPPGA
Contacts237
FSB protocol?
FSB frequency25–50 MT/s
Voltage range3.3 V and 5 V
ProcessorsIntel 486 SX, 486 DX, 486 DX2, 486 DX4, 486 OverDrive, Pentium OverDrive
AMD Am486 and Am5x86
PredecessorSocket 2
SuccessorSocket 4
Socket 6
This article is part of the CPU socket series

Socket 3 was a series of CPU sockets for various x86 microprocessors. It was sometimes found alongside a secondary socket designed for a math coprocessor chip, such as the 487. Socket 3 resulted from Intel's creation of lower voltage microprocessors. An upgrade to Socket 2, it rearranged the pin layout. Socket 3 is compatible with 168-pin socket CPUs.

Socket 3 was a 237-pin zero insertion force (ZIF) 19×19 pin grid array (PGA) socket suitable for the 3.3 V and 5 V, 25–50 MHz Intel 486 SX, 486 DX, 486 DX2, 486 DX4, 486 OverDrive and Pentium OverDrive processors as well as AMD Am486, Am5x86 and Cyrix Cx5x86 processors.

See also

References

  1. "Intel CPUs". 17 June 2021.
  2. Intel Socket 3 Specification, pcguide.com, retrieved 2009-03-30
Early CPU sockets
Other packages
PGAs
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