Socket 479 / Socket mPGA479M
Socket 479, also called mPGA479M, was introduced in 2001 as a socket for mobile Pentium III-M microprocessors, and, eventually, for mobile Celeron processors with Coppermine-T and Tualatin cores. The Pentium III-M CPUs were manufactured 478-pin package, but the socket itself had 479 pin holes, which made it easier for Intel to re-use the socket for other generations of microprocessors. Over the course of the next 5 years Intel introduced two other generations of mobile microprocessors that utilized the same socket, but were not compatible with each other or with Pentium III-M motherboards. Even more, socket 478 (Pentium 4 and mobile Pentium 4) and socket P (Core 2 Duo Mobile) processors could physically fit into socket 479, but were not electrically compatible with it. All these different families were manufactured in three different types of 478-pin package. The packages differed between themselves only by location of one pin, and, having one extra pin hole, it was sufficient for the socket to accommodate all three 478-pin package types. Below is the table that summarizes all families that can fit into the socket mPGA479M, but are not electrically compatible with each other:
The socket 479 works with mobile processors with frequencies up to 2333 MHz and FSB frequencies up to 667 MHz.
The socket has 479 pin holes arranged as 26 x 26 grid with 14 x 14 section removed from the center of the grid. The socket has 1 corner pin hole plugged. Socket dimensions are 3.6 cm x 4.4 cm or 1.42" x 1.73".
All processors in the table below will physically fit into the socket, but not all of them are supported by all motherboards. If you're upgrading an old computer system please make sure that the CPU is compatible with your motherboard. Please see "Upgrading socket 479 motherboards" section below for information on how to determine what microprocessors can be supported by your motherboard.
There are no AMD processors compatible with this socket.
Socket mPGA478C (for Celeron M 300 series and Pentium M motherboards)
Compatible package types
478-pin micro FC-PGA
Upgrading socket 479 motherboards
Because it's easy to put electrically-incompatible CPU into the socket 479 and thus damage the CPU and/or the motherboard, it is very important that you verify processor compatibility before buying and installing it. Depending on the type of motherboard you have, your upgrade choices are:
To determine what processors are supported you'll need to:
To determine upgrade options for brand name computers (like Dell or HP) try to search for computer model on computer manufacturer website.
For upgrade information for ABIT, ASRock, ASUS, DFI, ECS, Gigabyte Technology, Jetway, MSI, PC Chips motherboards please check CPU-Upgrade motherboard database.
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