Well, electricity is a wicked thing.
All of it will transform 100.0000% in to heat.
it doesnt have to. It can transform into light in a lightbulb for example.So what does into transfrom itself into in a cpu? Maybe information?

I does.
Heat is essentially energy, and that energy is used, in a tungsten wire (your average light bulb) to excite electrons to higher levels, eventually those electrons will fall back to their normal level and when that happens, they release energy (the same amount of energy that was required to excite them to the next level), that energy is released in the form of a photon - light.
So the electric energy was used to excite the electrons, not to produce light. The light was produced from the electrons dropping back.
light bulbs have efficiency ratings like 100% of electricity--->90% light +10% heat. Does your explanation still work?