Biostar Hi-Fi Z77X Motherboard

Voltage Regulator

The CPU voltage regulator circuit of the Biostar Hi-Fi Z77X has 10 phases for the CPU main voltage (Vcc a.k.a. Vcore), two for the CPU VSA voltage (memory controller), and one for the CPU VTT voltage (PCI Express and DMI interfaces). Therefore, it uses a “10+2+1” configuration.

The voltage regulator is controlled by an ISL6367 integrated circuit, using a hybrid design.

Biostar Hi-Fi Z77XFigure 10: Voltage regulator circuit

The Biostar Hi-Fi Z77X uses solid electrolytic capacitors. 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.

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