There are some interesting things to be discovered when removing the integrated heatspreader (IHS) from a processor, a delicate and dangerous (to the CPU) process known as delidding. For example, you might uncover so called ‘dummy dies’ as famed overclocker der8auer did when delidding a Threadripper 1950X processor. More recently, someone

Source: Hot Hardware – Intel Core i7-8700K Coffee Lake Flagship Delidded, Larger Die Exposed