Removing the heat sinks does not reveal that much about the motherboard since many of the components are uncovered even with them installed.
The VRM on the Z170GTN is in a 4+2 phase configuration for the CPU core and iGPU, and while that seems low, it is enough for a 6700K. BIOSTAR is using 5K capacitors, which should fair fine over the lifetime of the product.
The Intersil ISL95824 4+2 phase hybrid-digital PWM controller. It has two integrated drivers for the four CPU core phases and a single integrated driver for the iGPU phases. BIOSTAR uses two ISL6608s for the remaining two CPU phases and a single ISL6608 for the second iGPU phase. Each phase consists of a high-side PowerPAK (Sinopower SM4377) and a low-side PowerPAK (Sinopower SM4364).
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- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Packaging and Z170GTN Overview]
- Page 3 [BIOSTAR Z170GTN Circuit Analysis]
- Page 4 [BIOSTAR Z170GTN Circuit Analysis Continued]
- Page 5 [BIOS and Software]
- Page 6 [Test System Setup]
- Page 7 [Overclocking]
- Page 8 [CPU, Memory, and System Benchmarks]
- Page 9 [System IO Benchmarks]
- Page 10 [Thermal Imaging and Power Consumption]
- Page 11 [What's Hot, What's Not & Final Thoughts]