The Intel Group offers an additional guarantee for the owners of its unbridled processors, through which a replacement is possible in case of breakage.
If you are a fan of overclocking and have one of the recent unbridled Intel processor which are identified by their suffix K which include following processors: Core i5-2500K, Core i7-2600K, Core i7-2700K, Core i7-3930K, or suffix X as the Core i7-3960X, this is something that might interest you.
The giant of Santa Clara (Intel) has indeed announced the Performance Tuning Protection Plan, which provides an additional guarantee to replace the chip if its damaged after the overclocking (performed in right conditions, of course).
Core i7-2700K and Core i7-3960X
It can be purchased within one year after you buy a processor and limited to a single processor replacement guarantee, it costs between 20 and 35 dollars, depending on the processor model. There is no limit on the number of replacements taken.
If you are interested, you have to use the Intel website and have a PayPal online payment account (this is the only method of payment proposed).