Socket 370

Computing Dictionary

Socket 370 definition

hardware, standard, processor
(PGA370) A physical and electrical specification for a motherboard processor socket. Socket 370 uses a square SPGA ZIF socket with 370 pins, arranged 37x37 (sometimes described as 19x19).
Intel originally designed Socket 370 for PPGA Celeron processors. Newer Socket 370 motherboards additionally support FC-PGA Celeron and Pentium III processors.
The difference between the two versions is electrical; some pins are used differently and voltage requirements have been changed from Intel's VRM 8.2 to VRM 8.4. In addition, Celeron processors require a 66 MHz front side bus (FSB), and Pentium III processors require a 100/133 MHz FSB.
Some older Socket 370 motherboards support VRM 8.4 and variable bus speeds, so adapters are available that convert the socket pinout to allow FC-PGA processors to work.
VIA's Cyrix III processor was designed to work with Socket 370 motherboards.
Intel Celeron Processor in PPGA form factor - Integration (http://pentium.com/design/quality/celeron/ppga/integration.htm).
Pentium III Processors - Design Guidelines (http://intel.com/design/PentiumIII/designgd/).
(2000-08-26)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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