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MSI B350M Gaming Pro (AMD B350) Motherboard Review (Page 3)

Steven Bassiri | Mar 9, 2018 at 10:00 am CST - 0 mins, 45 secs reading time for this page
Rating: 91%Manufacturer: MSI

Circuit Analysis

MSI B350M Gaming Pro (AMD B350) Motherboard Review 17 | TweakTown.com

The B350M Gaming Pro reveals some interesting things when we remove the heat sinks.

MSI B350M Gaming Pro (AMD B350) Motherboard Review 18 | TweakTown.comMSI B350M Gaming Pro (AMD B350) Motherboard Review 19 | TweakTown.com

The VRM is in a 3+2 phase configuration controlled by a Richtek RT8894A PWM specifically designed for AMD systems. The PWM controller has three integrated drivers that are being used to drive each of the three CPU core voltage phases.

Each power stage uses two high-side MOSFETs and two low-side MOSFETs. NIKOS PK616 and PK632 MOSFETs are used. Two Richtek drivers labeled "4P=" are found on the motherboard, and they drive the SoC voltage.

MSI B350M Gaming Pro (AMD B350) Motherboard Review 20 | TweakTown.com

The memory VRM is controlled by a Richtek PWM controller with integrated driver, and it's labeled "24=". The 4H you see on the SoC drivers and memory PWM controller refers to the batch number. The single memory phase uses the same MOSFET configuration as the CPU 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 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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