Question: I have a [Dell laptop D530](http://en.wikipedia.org/wiki/Dell_Latitude#Latitude_D5x0_series) with a 2.2 GHz [T7500 processor](http://ark.intel.com/Product.aspx?id=29761).

What's the fastest processor upgrade I can put in this laptop?

Answer: 
Just a comment on the D530 CPU, it uses a ZIF socket secured to the motherboard with a cam screw so it should be easily replaceable.
Isn't it possible to install a T7800 CPU into the D530? It's the fastest CPU of this product line (runs on 2.6 GHz, everything else is just like T7700). And what about the [Penryn CPUs](http://en.wikipedia.org/wiki/Penryn_%28microprocessor%29)? Yes, they are 45 nm (as oposed to the 65 nm T7xxx), but the [Santa Rosa](http://en.wikipedia.org/wiki/Opteron#Opteron_.2890_nm_SOI.2C_DDR2.29) platform should be compatible with them...?