< hardware , standard > One of the series of standard sockets into which you can plug various x86 microprocessors . These vary in the number of pins, package, voltages, bus speeds, and supported processors. Motherboards often have clock multipliers so that the processor runs at a multiple of the bus speed.
Socket 1, 169 pin LIF / ZIF PGA (17x17), 5v, 16-33 MHz 486 SX , 486 DX , 486 DX2 , DX4 Overdrive . Socket 1 was the first standard Intel 486 socket.
Socket 2, 238 pin LIF/ZIF PGA (19x19), 5v, 25-50 MHz 486 SX, 486 DX, 486 DX2, 486 DX4, DX4 & Pentium Overdrive . Updated Socket 1, added support for Pentium Overdrive processors.
Socket 3, 237 pin LIF/ZIF PGA (19x19), 3.3/5v, 25-50 MHz 486 SX, 486 DX, 486 DX2, 486 DX4, DX4 & Pentium Overdrive. Supports 5V & 3.3V processors, considered the latest 486 socket.
Socket 4, 273 pin LIF/ZIF PGA (21x21), 5v, 60/66 MHz Pentium 60/66 and Pentium Overdrive, only 5v.
Socket 5, 296 pin LIF/ZIF, 320 pin LIF/ZIF SPGA (19x19 or 37x37), 3.3v, 50/60/66 MHz Pentium 75 - 133MHz, Pentium Overdrive, only 3.3v.
Socket 6, 235 pin ZIF PGA (19x19), 3.3v, 25-40MHz. Unpopular advanced Socket 3, rarely seen / paper spec 486 DX4, Pentium Overdrive, only 3.3v.
See also Socket 7 , Socket 8 , Super 7 , Slot 1 , Slot 2 , Slot A .
CPU Sockets chart .
CPU Sockets .