Base 2

Base 2
Specifications
design type	PGA - ZIF / LIF
contacts	238 (19 × 19)
Bus protocol	486
Bus cycle	25, 33, 40, 50 MHz
Operating voltage	5 V
Processors	Intel i486 SX (16–33 MHz) ; Intel i486SX2 (50–66 MHz) ; Intel i486DX (20–33 MHz) ; Intel i486DX2 (50–66 MHz) ; Intel Pentium Overdrive (63–83 MHz) ; and compatibles

The base 2 was an evolution of socket 1 for the Intel Pentium overdrive and i486 DX4 processors.

Typical chipsets for socket 2 mainboards were the Intel 420 chipset (Saturn I) and the 82C480 from VLSI Technology . Socket 2 motherboards support PCI 2.0 and Fast Page Mode DRAM . To multiply the internal processor clock from the FSB clock , integer multipliers up to 3 × were supported.

The base 2 was replaced by the base 3 , which in addition to the 5 V operating voltage also provided 3.3 volts.


Socket for Itanium	PAC418 ( Slot M ) • PAC611 ( Slot 3 ) • Socket 1248
Socket for x86 server	Socket 8 • Slot 2 • Socket 603 • Socket 604 • Socket 771 • Socket 1366 • Socket 2011 • Socket 2011-3 • Socket 3647
Socket for x86 desktops	Socket 486 • Socket 1 • Socket 2 • Socket 3 • Socket 6 • Socket 4 • Socket 5 • Socket 7 • Socket 8 • Slot 1 • Socket 370 • Socket 423 • Socket 478 • Socket 775 • Socket 1156 • Socket 1155 • Socket 1150 • Base 1151 • Base 2066 • Base 1200
Base for mobile devices	MMC-1 • MMC-2 • Socket 495 • Socket 479 • Socket M • Socket P • Socket G1 • Socket G2 • Socket G3