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Gigabyte Z87X-UD7 TH Motherboard

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Voltage Regulator

The CPU voltage regulator circuit of the Gigabyte Z87X-UD7 TH has 16 phases for the CPU. The voltage regulator uses an IR3563B controller chip (digital design). This controller provides eight phases, and each of these phases are connected to a phase doubler integrated circuit, creating the final 16 phases. One IR3550M chip (which combines the low side and the high side transistors in a single package) is used per phase.

The voltage regulator circuit has an active cooler, with one heatpipe and a 40 mm fan. It is also prepared for a liquid cooling system.

Figure 13 reveals the voltage regulator circuit without the cooler.

Gigabyte Z87X-UD7 THFigure 13: Voltage regulator circuit

The Gigabyte Z87X-UD7 TH 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.