This message was posted on behalf of Intel Corporation
AOrlecki: Thank you very much for contacting the Intel® communities. We will do our best in order to provide the information you are looking for.
In regard to your question, there are no recommendations for safe overclocking, what we recommend is to use the processor at stock configurations with the default BIOS settings, as you mentioned before altering clock frequency or voltage may damage or reduce the useful life of the processor and other system components, and may reduce system stability and performance. Product warranties may not apply if the processor is operated beyond its specifications. That is the main reason why we have the Intel® Tuning Protection Plan, because by purchasing the plan you will be able to overclock the processor and if by any chance it gets damage, you will be able to replace it using the plan.
The option to be able to overclock it was given by Intel since there are many different users that take advantage of that feature, but if you use the processor out of specifications, it will be customer’s responsibility if something happens to the system:
Once the processor arrives to our depot for warranty replacement, the agents in there will do a screening process on it and by doing so they will notice that the processor was overclocked.
Any further questions, please let me know.