from
The Free On-line Dictionary of Computing (8 July 2008)
Socket 370
PGA370
<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)