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MSI Z370 GAMING PRO CARBON AC Motherboard Review (Page 3)

By Steven Bassiri on Nov 22, 2017 at 11:39 am CST - 1 min, 21 secs reading time for this page
Rating: 92%Manufacturer: MSI

Circuit Analysis

MSI Z370 GAMING PRO CARBON AC Motherboard Review 19 | TweakTown.com

The Z370 GAMING PRO CARBON AC reveals its secrets when the heat sinks and shields come off.

MSI Z370 GAMING PRO CARBON AC Motherboard Review 20 | TweakTown.comMSI Z370 GAMING PRO CARBON AC Motherboard Review 21 | TweakTown.com

The VRM on the motherboard is in an 8+2 phase configuration and uses double the number of MOSFETs per phase for the CPU VCore and a doubler for the iGPU with a two low one high configuration. A UPI semiconductor solution is used for the VRM, and the main PWM controller is a uP9508Q, which seems to be able to flex one of it's PWM outputs.

It offers 3+2 phase operation, but here we see it in a 4+1 phase mode, and the second PWM channel is doubled to 2 from 1 for the iGPU. Our MOSFETs are On Semiconductor NTMFS4C024N for the low-side and NTMFS4C029N for the high-side, you could get up to 45A per phase output if the inductor allows for it.

MSI Z370 GAMING PRO CARBON AC Motherboard Review 22 | TweakTown.comMSI Z370 GAMING PRO CARBON AC Motherboard Review 23 | TweakTown.com

We find four UPI drivers for the VCore, three on the rear of the PCB and one on the topside. The iGPU phases get two low one high MOSFET setup instead of one low and one high for the VCore phases. They also get a doubler with two integrated drivers, the uP1961 for control from the main PWM.

MSI Z370 GAMING PRO CARBON AC Motherboard Review 24 | TweakTown.comMSI Z370 GAMING PRO CARBON AC Motherboard Review 25 | TweakTown.com

The memory VRM gets a one high two low side configuration for the single phase memory VRM using the same MOSFETs as the CPU VRM. The memory VRM uses a Richtek RT8125E single phase integrated PWM controller. The VCCSA also uses a single phase RT8125, and the VCCIO uses a linear VRM.

Last updated: Nov 15, 2019 at 01:16 pm CST

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Steven Bassiri

ABOUT THE AUTHOR - Steven Bassiri

Steven went from a fledgling forum reader in 2003 to one of the internet's brightest 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 under his belt. He brings that knowledge and experience to TweakTown.

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