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GIGABYTE AB350N-Gaming WIFI (AMD B350) Motherboard Review (Page 3)

By Steven Bassiri from Apr 12, 2018 @ 10:00 CDT
TweakTown Rating: 92%Manufacturer: GIGABYTE

Circuit Analysis

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The AB350N-Gaming WIFI reveals some interesting things when we remove the heat sinks.

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The VRM is in a 4+2 phase configuration controlled by an International Rectifier digital PWM controller, the IR35201. In this case, the controller is in 4+2 phase mode. Each of the phases uses a single International Rectifier IR3556 fully integrated PowIRstage rated for up to 50A and a CooperBussmann inductor with a saturation current of 76A. These are very high quality for a motherboard at this price point, and great for high-density VRMs such as this.

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The memory VRM is controlled by a Richtek RT8120 found on the rear of the motherboard. It seems to be in a single phase single high-side dual low-side MOSFET configuration.

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