What can I replace an intel core i5 4200h with?
You can't replace the processor with anything, it's a laptop, and the processors are soldered onto the motherboards of laptops. If you wanted to be able to replace the processor, then you should've gotten a desktop. The only thing you can do is replace this laptop with something faster (though, it's not really worth the effort, it seems to be pretty fast laptop processor already). There are maybe 0.1% of laptops that can have their processors upgraded, but the vast majority of the 99.9% rest cannot be. The i5-4200H uses the FCBGA1364 socket format, which means it is a "Ball-Grid Array", which basically means that this is soldered onto the mobo. http://is.gd/5urypB