ASRock Z77E-ITX Motherboard
Voltage Regulator
Contents
The CPU voltage regulator circuit of the ASRock Z77E-ITX has six phases for the CPU main voltage (Vcc a.k.a. Vcore), one for the CPU VSA voltage (memory controller), and one for the CPU VTT voltage (PCI Express and DMI interfaces). Therefore, it uses a “6+1+1” configuration, which is incorrectly advertised by the manufacturer as “6+2.” The voltage regulator is controlled by an ISL6367 integrated circuit, using a hybrid design.
Figure 9: Voltage regulator circuit
The ASRock Z77E-ITX uses SMD (Surface Mount Device) capacitors, also known as highly-conductive polymerized or simply Hi-c. All coils on this motherboard are solid, ferrite-core models, which can provide up to 20% improvement in efficiency.
If you want to learn more about the voltage regulator circuit, please read our tutorial on the subject.