{{About|a CPU socket|the variant of an expansion card socket|M.2#KEYING{{!}}M.2 § Form factors and keying}} {{short description|Series of CPU sockets}} {{Infobox CPU socket |name = Socket 3 |image = 250px |formfactors = PPGA |contacts = 237 |type = ZIF |protocol = ? |fsb = 25–50 MT/s |voltage = 3.3 V and 5 V |processors = Intel 486 SX, 486 DX, 486 DX2, 486 DX4, 486 OverDrive, Pentium OverDrive<br>AMD Am486 and Am5x86 |predecessor = Socket 2 |successor = Socket 4<br>Socket 6 }}
'''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{{Citation needed|date=November 2021}}. 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.<ref>{{Cite web|date=19 October 2020|access-date=17 June 2021|title=Intel CPUs|url=https://www.vogonswiki.com/index.php/Intel_CPUs#Socket_1.2C2.2C3 |website=VOGONS Wiki}}</ref>
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.<ref>{{cite web |title=Intel Socket 3 Specification |archive-url=https://web.archive.org/web/20181002053349/http://www.pcguide.com/ref/cpu/char/socketSocket3-c.html |archive-date=2 October 2018 |url-status=dead |url=http://www.pcguide.com/ref/cpu/char/socketSocket3-c.html |website=The PC Guide |first=Charles M. |last=Kozierok |date=17 April 2001 |accessdate=2009-03-30 }}</ref>
==See also== * List of Intel microprocessors * List of AMD microprocessors
==References== {{Reflist}}
Socket 003 {{earlysock}}