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MSI B450 Tomahawk (AMD B450) Motherboard Review (Page 3)

Steven Bassiri | Oct 3, 2018 at 10:00 am CDT - 0 mins, 44 secs reading time for this page
Rating: 90%Manufacturer: MSI

Circuit Analysis

MSI B450 Tomahawk (AMD B450) Motherboard Review 18 | TweakTown.com

The B450 Tomahawk shows us the goods with the heat sinks removed!

MSI B450 Tomahawk (AMD B450) Motherboard Review 19 | TweakTown.comMSI B450 Tomahawk (AMD B450) Motherboard Review 20 | TweakTown.com

The VRM is in a 4+2 phase configuration, and while that might seem low, in this case the number of MOSFETs has been doubled per phase to decrease overall temperatures when the VRM is under high load. We find a Richtek 4+2 phase PWM designed for new AMD CPUs, and it has three integrated drivers for the VCore output (4 phases). The SoC phases and one VCore phase use Richtek RT9624F drivers (labeled 4P=). The MOSFETs are the ON Semiconductor NTMFS4C024N and NTMFS4C029, with two of each per phase.

MSI B450 Tomahawk (AMD B450) Motherboard Review 21 | TweakTown.com

The memory VRM is one phase with the same MOSFET configuration as the CPU phases, and it's controlled by a Richtek RT8125E PWM controller with integrated driver labeled "8Y=".

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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