PGA370 -->
Socket 370
computing dictionary

<computer 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.

Pentium III Processors - Design Guidelines.

(01 May 2000)

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