The X470 Gaming M7 AC shows us the goods with the heat sinks removed!
We see the VRM here is in a 12+2 phase mode, with the CPU Core domain in a 1H1L (one high-side one low-side MOSFET) configuration and the SoC in a 1H2L MOSFET configuration. The PWM controller, the IR35201 is used in 6+2 phase mode with phase doublers found on the rear of the motherboard. The low-side MOSFETs are the ON Semiconductor NTMFS4C024N, and the high-side are the NTMFS4C029N.
The IR3590 phase doublers with dual integrated drivers can be found on the rear of the motherboard; there are six of them to double 6 phases to 12 with proper driver outputs. The memory VRM uses a Richtek RT8125E PWM controller, which is single phase PWM with integrated driver and two low-side and two high-side MOSFETs, which are the same as on the CPU VRMs.
Last updated: Nov 15, 2019 at 01:16 pm CST
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- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Packaging and X470 Gaming M7 AC Overview]
- Page 3 [MSI X470 Gaming M7 AC Circuit Analysis]
- Page 4 [MSI X470 Gaming M7 AC 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]