Socket 479

Socket 479
Specifications
introduction	November 2001
design type	ZIF
contacts	479
Bus protocol	AGTL +
Bus cycle	100 MHz ( Quadpumped , FSB400 ) 133 MHz ( Quadpumped , FSB533 )
Operating voltage	variable
Processors	Intel Pentium M Intel Celeron M VIA C7 VIA C8 VIA Nano

The socket 479 (officially mPGA479M ) is the processor socket for Intel's mobile processors series Pentium M as well as Celeron M based on the Banias and Dothan. With the introduction of Intel Core processors, the base was the 479 Socket M replaced.

Socket 479 has openings for 479 pins and is therefore mechanically compatible with all Intel processors in “Micro-FCPGA” housings with a maximum of 479 pins. This means that the “Micro-FCPGA” housing variants of the Socket 478 desktop processors as well as the Socket M and Socket P mobile processors fit mechanically in this CPU socket. However, the pin assignment of these processors differs, so that there is no electrical compatibility. For this reason, for example, a Pentium M mainboard with socket 479 cannot be upgraded with a successor processor from the series of Intel Core processors. In some cases, corresponding adapter kits were offered which enable the operation of mobile processors (Intel Pentium M or Celeron M) in suitable Socket 478 mainboards.

Although always unsocketed, VIA's C7 and C8 processors also use the Socket 479 infrastructure, but with their own VIA-V4 bus protocol. Thus these are incompatible with Intel's AGTL + chipsets. For the VIA Eden , VIA developed a NanoBGA2 package based on the Socket 479, which is also used in the VIA C7 and VIA C8 CPUs.

Web links

Commons : Socket 479  - Collection of images, videos and audio files

Individual evidence

1. ↑ ^{a b} Micro-FCPGA Socket (mPGA479M) (PDF) Intel, Design Guidelines