The X399M TAICHI reveals its secrets with the heat sinks removed.
ASROCK is using an 8-phase VRM for the main core voltage with 60A inductors. The SoC VRM is three phases with the same 60A inductors.
The CPU core VRM uses an International Rectifier IR35201 digital PWM controller in 8+0 phase mode, and each phase uses an IR3555 60A fully integrated PowIRstage. The SoC VRM uses the same PWM controller, but in 3+0 phase mode, and it uses three of the same IR3555 we saw on the main core voltage VRM.
Each set of four DIMMs gets its own two-phase memory VRM that uses a UPI Semiconductor UP1674P PWM controller and two Sinopower SM7341EH dual N-channel MOSFETs rated around 25A each.
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 States: The ASROCK X399M TAICHI (AMD X399) Motherboard retails for $XXX at Amazon.
- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Packaging and X399M TAICHI Overview]
- Page 3 [ASROCK X399M TAICHI Circuit Analysis]
- Page 4 [ASROCK X399M TAICHI 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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