The Z370 GAMING PRO CARBON AC reveals its secrets when the heat sinks and shields come off.
The VRM on the motherboard is in an 8+2 phase configuration and uses double the number of MOSFETs per phase for the CPU VCore and a doubler for the iGPU with a two low one high configuration. A UPI semiconductor solution is used for the VRM, and the main PWM controller is a uP9508Q, which seems to be able to flex one of it's PWM outputs.
It offers 3+2 phase operation, but here we see it in a 4+1 phase mode, and the second PWM channel is doubled to 2 from 1 for the iGPU. Our MOSFETs are On Semiconductor NTMFS4C024N for the low-side and NTMFS4C029N for the high-side, you could get up to 45A per phase output if the inductor allows for it.
We find four UPI drivers for the VCore, three on the rear of the PCB and one on the topside. The iGPU phases get two low one high MOSFET setup instead of one low and one high for the VCore phases. They also get a doubler with two integrated drivers, the uP1961 for control from the main PWM.
The memory VRM gets a one high two low side configuration for the single phase memory VRM using the same MOSFETs as the CPU VRM. The memory VRM uses a Richtek RT8125E single phase integrated PWM controller. The VCCSA also uses a single phase RT8125, and the VCCIO uses a linear VRM.
Last updated: Nov 15, 2019 at 01:16 pm CST
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- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Packaging and Z370 GAMING PRO CARBON AC Overview]
- Page 3 [MSI Z370 GAMING PRO CARBON AC Circuit Analysis]
- Page 4 [MSI Z370 GAMING PRO CARBON 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]