Socket 1

{{Infobox CPU socket

|name = Socket 1

|formfactors = PGA

|contacts = 169

|type = ZIF

|protocol = ?

|fsb = 16–33 MT/s

|voltage = 5 V

|processors = Intel 486 SX, 486 DX, 486 DX2, 486 OverDrive

|predecessor =

|successor = Socket 2

|image=Socket 1 ZIF.png

}}

Socket 1, originally called the "OverDrive" socket, was the second of a series of standard CPU sockets created by Intel into which various x86 microprocessors were inserted. It was an upgrade to Intel's first standard 169-pin pin grid array (PGA) socket and the first with an official designation. Socket 1 was intended as a 486 upgrade socket, and added one extra pin to prevent upgrade chips from being inserted incorrectly.

Socket 1 was a 169-pin zero insertion force (ZIF) 17×17 pin grid array (PGA) socket suitable for the 5-volt, 16 to 33 MHz 486 SX, 486 DX, 486 DX2 and 486 OverDrive processors.{{Citation |title=Intel Socket 1 Specification |publisher=pcguide.com |url=http://www.pcguide.com/ref/cpu/char/socketSocket1-c.html |accessdate=2008-03-30 |url-status=dead |archive-date=2008-03-20 |archive-url=https://web.archive.org/web/20080320071309/http://www.pcguide.com/ref/cpu/char/socketSocket1-c.html }}