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MSI B450 Tomahawk (AMD B450) Motherboard Review (Page 4)

Steven Bassiri | Oct 3, 2018 at 10:00 am CDT - 0 mins, 56 secs reading time for this page
Rating: 90%Manufacturer: MSI

B450 Tomahawk Circuit Analysis Continued

MSI B450 Tomahawk (AMD B450) Motherboard Review 22 | TweakTown.com

Audio hardware includes a Realtek ALC892, some gold series audio capacitors, and the PCB is physically isolated to reduce noise.

MSI B450 Tomahawk (AMD B450) Motherboard Review 23 | TweakTown.comMSI B450 Tomahawk (AMD B450) Motherboard Review 24 | TweakTown.com

The Gbit LAN comes from a Realtek RTL8111H controller. A Pericom PI3EQX re-drives both USB 3.1 signals for both ports on the rear IO panel and a Texas Instruments HD3220 is used as the type-C switch.

MSI B450 Tomahawk (AMD B450) Motherboard Review 25 | TweakTown.comMSI B450 Tomahawk (AMD B450) Motherboard Review 26 | TweakTown.com

The main SuperIO is the nuvoton NCT6797D. The chip labeled "504N" is responsible for the BIOS USB recovery technology, it's some custom microcontroller that's typically only found on MSI motherboards with the feature.

MSI B450 Tomahawk (AMD B450) Motherboard Review 27 | TweakTown.comMSI B450 Tomahawk (AMD B450) Motherboard Review 28 | TweakTown.com

We find a 128Mbit/16MB BIOS ROM on the motherboard. Smaller nuvoton IC's like this NCT5605Y GPIO controller are used to expand fan control.

MSI B450 Tomahawk (AMD B450) Motherboard Review 29 | TweakTown.comMSI B450 Tomahawk (AMD B450) Motherboard Review 30 | TweakTown.com

Here a Texas Instruments GD75232 multiple drivers and receivers chip is used to provide COM port functionality. ASMedia ASM1480 quick switches are used to switch around bandwidth between two SATA ports and the M.2 slot and between the x4 PCI-E 2.0 slot and two x1 slots.

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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