ASRock Z390 Taichi (Intel Z390) Motherboard Preview (Page 3)

| Oct 8, 2018 at 11:01 am CDT

Circuit Analysis

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The Fatal1ty Z390 Taichi shows us the goods with the heat sinks removed!

ASRock Z390 Taichi (Intel Z390) Motherboard Preview 20 | TweakTown.comASRock Z390 Taichi (Intel Z390) Motherboard Preview 21 | TweakTown.com

The VRM is a large 10+2 phase VRM with the CPU and iGPU power rails using IR35201 PWM controller in 5+2 phase mode. The 10 phases are doubled up by, but not the iGPU phases. Each phase uses a 60A choke, 12K capacitors, and Texas Instruments 87350D NexFETs.

ASRock Z390 Taichi (Intel Z390) Motherboard Preview 22 | TweakTown.comASRock Z390 Taichi (Intel Z390) Motherboard Preview 23 | TweakTown.com

The VCCSA and VCCIO are controlled by single phase Richtek RT8120, and they control Sinopower dual N-Channel SM7341EH. Six IR3598 are in doubler and dual-driver mode for the CPU phases, but one IR3598 is configured as dual driver mode, where it is fed two PWM signals from the PWM.

ASRock Z390 Taichi (Intel Z390) Motherboard Preview 24 | TweakTown.com

The memory VRM uses a UPI uP1674 PWM controller and the same MOSFETs as the VCCSA/VCCIO in a two-phase configuration.

Last updated: Sep 24, 2019 at 12:26 am CDT

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ABOUT THE AUTHOR -

Steven went from a fledgling forum reader in 2003 to one of the internet's brightest tech stars by 2010. Armed with an information systems degree, a deep understanding of circuitry, and a passion for tech, Steven (handle Sin0822) enjoys sharing his deep knowledge with others. Steven details products down to the component level to highlight seldom explained, and often misunderstood architectures. Steven is also a highly decorated overclocker with several world records.

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