Socket 4

Socket 4, presented in 1993, was the first CPU socket designed for the early P5 Pentium microprocessors. Socket 4 was the only 5-volt socket for the Pentium. Socket 4 does support a special Pentium OverDrive, which allows running at 120 MHz (for the 60 MHz Pentium) or 133 MHz (for the 66 MHz Pentium).[1]

Socket 4
Socket 4.jpg
Chip form factorsPPGA
FSB protocol?
FSB frequency60, 66 MT/s
Voltage range5 V
ProcessorsIntel P5 Pentium
PredecessorSocket 3
SuccessorSocket 5

This article is part of the CPU socket series

Socket 4 was superseded by the 3.3-volt-powered Socket 5 in 1994.

A socket 4 processor mounted on a motherboard

See alsoEdit


  1. ^ Intel Socket 4 Specification,, retrieved 2009-03-30