The CPU voltage regulator circuit of the ASRock Z270 Extreme4 has 12 phases for the CPU. The voltage regulator uses an Intersil ISL95824 controller chip (digital design). Each phase uses one Sinopower SM4336NSJP and one Sinopower SM4337NSKP MOSFETs.
Figure 10: voltage regulator circuit
The ASRock Z270 Extreme4 uses high-end “black” solid capacitors (a.k.a. 10K capacitors) and all coils on this motherboard are ferrite ones.
If you want to learn more about the voltage regulator circuit, please read our tutorial on the subject.