Now we can see exactly what's going on with the motherboard.
The VRM is in a 6+2 phase configuration for the CPU VCore and SoC phases. The main PWM is an Intersil ISL95712 4+2 phase PWM in a 3+2 phase configuration. The PWM controller features two integrated VCore drivers and one integrated SoC driver, so ASRock adds a few ISL6625A drivers.
Each two power stages for the VCore is connected to one driver, while the SoC gets one driver per phase. The MOSFETs are dual N-channel Sinopower SM7341EHKP, so you only need one per phase (VCore), but ASRock added two per phase for the SoC VRM. We also find high-current inductors and 12K capacitors.
It seems that the memory VRM uses a Monolitic Power Systems MPQ8636 4/10/20 amps step-down converter.
PRICING: You can find the product discussed for sale below. The prices listed are valid at the time of writing, but can change at any time. Click the link below to see real-time pricing for the best deal:
United Kingdom: The ASRock Mini-ITX Motherboards X370 GAMING-ITX/AC retails for £112.97 at Amazon UK.
- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Packaging and X370 Gaming-ITX/ac Gaming Overview]
- Page 3 [ASRock X370 Gaming-ITX/ac Gaming Circuit Analysis]
- Page 4 [ASRock X370 Gaming-ITX/ac Gaming 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]
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