Socket 370

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Socket 370
Specifications
Type	PGA-ZIF
Chip form factors	Plastic pin grid array (PPGA) and Flip-chip pin grid array (FC-PGA and FC-PGA2)
Contacts	370
Bus Protocol	GTL+
FSB	66, 100 and 133 MHz
Voltage range	1.05–2.1 V
Processors	Intel Celeron (PPGA, 300–533 MHz) Intel Celeron (FC-PGA, 533–1100 MHz) Intel Celeron (FC-PGA2, 900–1400 MHz) Intel Pentium III (FC-PGA, 500–1133 MHz) Intel Pentium III (FC-PGA2, 1000–1400 MHz) VIA Cyrix3/C3 (500–1200 MHz)
This article is part of the CPU socket series

Socket 370 is a common format of CPU socket first used by Intel for Pentium III and Celeron processors to replace the older Slot 1 CPU interface on personal computers. The "370" refers to the number of holes in the socket for CPU pins. Modern Socket 370 fittings are usually found on Mini-ITX motherboards and embedded systems.

Socket 370 was originally used for the Intel Celeron, but later became the socket/platform for the Coppermine and Tualatin Pentium III processors, as well as the Via-Cyrix Cyrix III, later renamed the VIA C3. Some motherboards that used Socket 370 support Intel processors in dual CPU configurations. Others allowed the use of a Socket 370 or Slot 1 CPU, although not at the same time.

This platform is not wholly obsolete, but its use is today limited to the above specialty applications, having been superseded by Socket 423/478/775 (for Pentium 4 and Core 2 processors). Via are still producing Socket 370 processors, but are increasingly migrating their processor line to ball grid array packages.