According to Kitguru there are several other motherboard makers working on BIOS updates to enable overclocking on some of Intel’s locked Skylake processors.

The feature was first made available on an Asrock motherboard, which was used by overclocker ‘Dhenzjhen’ to increase the base clock of an Core i3, which increased the speed significantly.

MSI motherboard BIOS update supports this method of overclocking on several of its Skylake models, allowing users to overclock locked Core i5, Core i3 or even Pentium processors.

The MSI motherboards which can do it are the XPOWER GAMING TE, GAMING M9, M7, M5 and G45.

It can only be done with a discrete GPU in the system and Intel is not supporting the concept. If Chipzilla gets miffed about it, it might lean on its partners to lock down the CPUs once again.  We can't see this happening, but you can never be certain.