Socket 479

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Socket 479
Specifications
Type PGA-ZIF
Chip form factors Flip-chip pin grid array (FC-PGA2)
Contacts 479
Bus Protocol AGTL+
FSB 100 MHz (Quadpumped), FSB400
133 MHz (Quadpumped), FSB533
166 MHz (Quadpumped), FSB667
Voltage range
Processors Intel Pentium M (900 MHz - 2.267 GHz)
Intel Celeron M (800 MHz - 1.733 GHz)
Intel Core Duo (1.667 - 2.167 GHz)
Intel Core Solo (1.667 GHz)
VIA C7-M (1,5 GHz and 1,8 GHz)

This article is part of the CPU socket series


Asus CT-479 adapter
Asus CT-479 adapter

Socket 479 is the CPU socket for the Intel Pentium M, a mobile processor, normally used in laptops, as well as Tualatin-M Pentium III processors. It uses a different pin-arrangement from socket 478, making it impossible to use a Pentium M in a normal 478 board. Asus makes a drop-in board (CT-479) which lets you use socket 479 processors in selected Asus boards. Currently, the only chipsets for the Pentium M are the Intel 855GME, Intel 915GM and Intel 6300ESB.

A comparison of the Dothan (Pentium M SL7SM) (left) and Yonah (Core Duo) (right). Both chips have 478 pins, but the placement of one pin has been changed.
A comparison of the Dothan (Pentium M SL7SM) (left) and Yonah (Core Duo) (right). Both chips have 478 pins, but the placement of one pin has been changed.

Recently, Intel has released a new socket 479 with a revised pinout for its Core processor, called Socket M. This socket has the placement of one pin changed from the original Socket 479 in order to make the different processors incompatible in the incorrect socket. Socket M supports a 667 MT/s front side bus with the Intel 945GM chipset.