Not all computer parts are interchangeable. And even where the possibilities lie, compatibility is a must. Some commonly interchangeable parts include sound cards, video cars, power supply, CD and DVD drives etc. Others may include externally connectable items like SSD drives and other externally connectable devices like monitors or sound systems. However, here important is that both devices have the same types of slots for connecting devices. Here, you may need to install drivers in your operating system in certain cases to keep the machine working.