Socket 370

(hardware, standard, processor)(PGA370) A physical andelectrical specification for a motherboard processorsocket. Socket 370 uses a square SPGA ZIF socket with 370pins, arranged 37x37 (sometimes described as 19x19).

Intel originally designed Socket 370 for PPGA Celeronprocessors. Newer Socket 370 motherboards additionallysupport FC-PGA Celeron and Pentium III processors.

The difference between the two versions is electrical;some pins are used differently and voltage requirements havebeen changed from Intel's VRM 8.2 to VRM 8.4. Inaddition, 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 andvariable bus speeds, so adapters are available that convertthe socket pinout to allow FC-PGA processors to work.

VIA's Cyrix III processor was designed to work withSocket 370 motherboards.

Intel Celeron Processor in PPGA form factor - Integration.

Pentium III Processors - Design Guidelines.

Socket 370

The motherboard receptacle for Pentium II and III CPUs. Socket 370 accepts a 370-pin PPGA (plastic pin grid array) chip package. Socket 370 chips and motherboards cost less to manufacture than the more elaborate Single Edge Cartridge (SEC) and Slot 1 receptacle introduced with the Pentium II. See Super7.

Socket 370 and Slot 1

This motherboard supports both types of sockets for Pentium III chips.