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Thank you for contacting the Intel Communities.
I would like to inform you that this support is provided in English.
In this case, the Intel® Z170 Chipset is compatible with the processor you have; however, as you mention, a BIOS update is required.
Here is the Asrock official list for the motherboards compatible with the Intel® Core™ i5-7600K Processor and the minimum BIOS version required.
Please check the following link from Asrock for information about BIOS update.
ASRock BIOS Upgrade Instruction
Please let me know how it goes.