ASRock Fatal1ty Z68 Professional Gen3 Motherboard

Voltage Regulator

The CPU voltage regulator circuit of the ASRock Fatal1ty Z68 Professional Gen3 has 12 phases for the CPU main voltage (Vcc a.k.a. Vcore), two for the CPU VTT voltage (integrated memory controller and L3 memory cache), and four for the CPU VAXG voltage (integrated video controller). Therefore, it uses a “12+2+4” configuration.

Figure 11: Voltage regulator circuit

Figure 12: Voltage regulator circuit

This motherboard uses solid ferrite-core coils, which present less energy loss than iron-core coils (i.e., they improve efficiency), solid Japanese capacitors, and low RDS(on) transistors (i.e., higher efficiency). The voltage regulator uses a digital design, with a CHiL CHL8328 controller.

If you want to learn more about the voltage regulator circuit, please read our tutorial on the subject.