PC World reports that an Intel spokesperson stated the following regarding the update: In short, due to their smaller manufactured lithographic process, which is the 14nm FinFET one, Intel Skylake are more susceptible to decreased life span and increased damage when you attempt to overclock the non-K models. When you happen to be engaged in overclocking, certain voltage increments will have to be put in order to achieve a stable overclock, and while you will get a decent amount of performance for whatever task you intend on completing, it will cause irreparable damage to the chip, even if you have a decent amount of cooling present in your chassis. For this reason, Intel has decided to pull the plug on overclocking the non-K Skylake processor models. However, while we state this, it is also possible that the company wants you to spend more money on the unlocked multiplier processor models, which have a ‘K’ present at the end of the model name, indicating that you will be able to overclock it by increasing the multiplier. Consumers would have absolutely no issue purchasing these models, if they did not carry a larger price tag as compared to the regular models. So is Intel really doing this to protect your processors from certain doom, or do they want you to spend more money on a more expensive model? You be the judge.

Intel closes Skylake loophole  no more overclocking for non K chips   TechWorm - 5