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MSI X99A TOMAHAWK Motherboard Review

By: Steven Bassiri | Socket LGA 2011 in Motherboards | Posted: Nov 11, 2016 5:48 pm
TweakTown Rating: 90%Manufacturer: MSI

X99A TOMAHAWK Circuit Analysis Continued

 

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The Realtek ALC1150 is the audio codec on the motherboard and utilizes three OP1652 amplifiers. Nichicon Gold Series audio capacitors also help improve the sound as does a physical PCB divide to separate the analog audio domain from the mostly digital domain on the motherboard.

 

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The X99A TOMAHAWK features two 1Gbit NICs, the i210AT, and the i218LM PHY to compliment the integrated MAC in the PCH. Use of the LM instead of the V series i218 means you get more of a workstation NIC rather than a consumer version. An ASMedia ASM1142 provides two USB 3.1 ports, and a Texas Instruments HD3220 is used as the type-C port switch.

 

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Multiple ASM1464 USB 3.0 repeaters are used to improve the signal quality of the USB 3.0 internal headers. A few ASM1467 re-drive PCI-E signal strength to improve the signaling from the CPU's PCI-E controller to the M.2 and U.2 ports. Two 128Mbit (16MB) BIOS ROMs are located onboard and provide redundancy in case one BIOS ROM image gets corrupted.

 

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The main SuperIO is the nuvoTon NCT6792D, which provides temperature, voltage, and fan monitoring and control as well as the PS/2 port on the rear IO panel. A Renesas R5F104ACA microcontroller is used to provide the RGB LED header. An ASMedia ASM1074 USB 3.0 hub provides four rear USB 3.0 ports.

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