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Desktop and notebook processors are not electrically compatible.
The desktop Pentium® 4 processor uses a 478-pin package, while the mobile Pentium® III processor in the FC-PGA package uses a 478-pin package. While you can physically insert a Pentium 4 processor into a mobile Pentium III processor-M laptop, or a mobile Intel® Celeron® processor laptop, and you can insert a mobile Pentium III processor-M or a mobile Intel Celeron processor based on .13 micron process technology into a desktop Pentium 4 processor system, the two types of processors are not electrically compatible and it will damage the processors and/or the system if you do. In addition, this can void your warranty for your laptop and processor.
Learn more about Intel® processors.
Learn more about the Intel® Pentium® 4 processor.
What's the difference between a desktop and mobile processor?
The mobile Pentium® III processor-M is specifically designed for today's high performance mobile PCs. It is optimized for low power consumption and includes features such as Intel® QuickStart Technology, Enhanced Intel® SpeedStep® Technology-which manage power for better battery life. In addition, the 478-pin uFC-PGA package allows system integrators to build thinner, lighter mobile systems.
This applies to:
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