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BIOSTAR Racing Z170GT7 (Intel Z170) Motherboard Review (Page 3)

By Steven Bassiri from Mar 9, 2016 @ 11:12 CST
TweakTown Rating: 92%Manufacturer: BIOSTAR

Circuit Analysis

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Let's examine the parts that make up the Z170GT7.

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The VRM on the Z170GT7 is a 6+2 phase design. The first six phases come from three doubled PWM phases. The iGPU phases each has their own PWM line. BIOSTAR added some solder strips on the back of the PCB. I remember these from years past; they are supposed to help lower temperatures.

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The ISL95855 is an IMVP8 complaint hybrid model which can support up to 3+2+1 phase output. The first three phases are doubled by three ISL6611A doubler/dual driver chips. Each phase consists of a high-side PowerPAK (Sinopower SM4377) and a low-side PowerPAK (Sinopower SM4364). The iGPU phases each have an ISL6208 driver. The VCCSA and VCCIO come from the combination of a single phase uPI UP1514 controlled phase and a linear regulator.

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The memory VRM uses a uP1514 single phase PWM (same as VCCSA) and two Sinopower SM4377 PowerPAKs. You might also notice the eLAN eKTF5832, which is an 8-bit microcontroller specifically designed for touch panels such as the one located right above it.

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