Socket 3
| Type | ZIF |
|---|---|
| Chip form factors | PPGA |
| Contacts | 237 |
| FSB protocol | ? |
| FSB frequency | 25–50 MT/s |
| Voltage range | 3.3 V and 5 V |
| Processors | Intel 486 SX, 486 DX, 486 DX2, 486 DX4, 486 OverDrive, Pentium OverDrive AMD Am486 and Am5x86 |
| Predecessor | Socket 2 |
| Successor | Socket 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.