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ASRock Z390 Extreme4 (Intel Z390) Motherboard Review (Page 3)

By: Steven Bassiri from Jan 11, 2019 @ 10:00 CST
TweakTown Rating: 92%Manufacturer: ASRock

Circuit Analysis

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The Z390 Extreme4 shows us the goods with the heat sinks removed!

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The VRM is in a 10+2 phase configuration. Each of the CPU and iGPU phases utilizes a dual N-channel SinoPower SM7341EH 25A MOSFET and a high current inductor. The main PWM controller is the UPI Semiconductor UP9521 in 5+2 phase mode.

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Each of the five phases goes to a UP1965 driver, which them outputs to two power stages. The two phases for the iGPU phases use UP1962 drivers. The memory VRM is a large single phase set up as two phases and is controlled by a Richtek RT8120.

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