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ASUS ROG STRIX Z270G GAMING Motherboard Review (Page 3)

By: Steven Bassiri from Jan 24, 2017 @ 8:24 CST
TweakTown Rating: 92%Manufacturer: ASUS

Circuit Analysis

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The STRIX Z270G-Gaming has a lot to reveal without its heat sinks on.

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The VRM on this motherboard is in an 8+2 phase configuration. It has the same PWM controller as the Maximus IX Formula, labeled ASP1400. I assume it is from Richtek since the drivers seem to use Richtek markings. It seems that four phases are being doubled to eight for the CPU VCore since each two sets of inductors report back as one to the PWM. The MOSFETs are from ON Semiconductor, the 4C09B and 4C06B are similar to PowerPAKs seen from other vendors. They were used on some of ASUS's previous generation motherboards and should be fine for ambient overclocking.

The motherboard uses 5K capacitors with "MIL" stamped on them. While each of the VCore phases uses on high-side and one low-side MOSFET, each of the iGPU phases uses two low-side MOSFETs and one high-side.

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The memory VRM is a single phase powered by two low-side MOSFETs and one high-side MOSFET (like the iGPU phases), and is controlled by a Richtek PWM labeled "6X=2E".

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