GIGABYTE Z170X-UD3 Ultra Motherboard Review (Page 3)

| Oct 25, 2016 at 3:49 pm CDT
Rating: 90%Manufacturer: GIGABYTE

Circuit Analysis

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The Z170X-UD3 Ultra has a nice looking PCB.

GIGABYTE Z170X-UD3 Ultra Motherboard Review 18 | TweakTown.comGIGABYTE Z170X-UD3 Ultra Motherboard Review 19 | TweakTown.com

The VRM on the Z170X-UD3 Ultra is very simple. Four phases are dedicated to the CPU Core and three phases are dedicated to the iGPU. The Intersil ISL95856 4+2 phase PWM controller. It has two separate PWM rails, the rail with four phases has two integrated drivers and the rail with three phases has a single integrated driver.

GIGABYTE has added two ISL6625 drivers for the four phase rail and two for the three phase rail so that all PWM phases on both rails can be utilized. Each phase uses a Vishay SiRA12 and SiRA18 for the low-side and high-side MOSFETs. The VRM on this motherboard should be enough to get things done, but it probably isn't the best for crazy overclocks.

GIGABYTE Z170X-UD3 Ultra Motherboard Review 20 | TweakTown.comGIGABYTE Z170X-UD3 Ultra Motherboard Review 21 | TweakTown.com

The memory VRM uses a single phase PWM with an integrated driver, the Richtek RT8120D, and three Vishay SiRA12 (two low and one high). Minor rails like VCCIO and VCCSA are powered by linear regulators located south of the CPU socket area.

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

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ABOUT THE AUTHOR -

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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