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ASRock X370 Taichi AM4 Motherboard Review


Voltage Regulation

Since this is a fairly mainstream motherboard, we aren’t surprised that it does not have any onboard voltage measurement points, which is what we usually prefer to use to accurately measure the various system voltages. Usually that is not a big deal, since we can rely on a few pieces of software to shed some light on voltage regulation. However, given the newness of this platform, most applications haven’t yet been tailored to be able to accurately read the sensors of all the new AM4 motherboards. Regrettably, that is the case with this model. AIDA64 – and more specifically the AIDA64 System Stability Test – is not able to accurately read the CPU voltage on the ASRock X370 Taichi. We always use this test to see if a motherboard can maintain a steady vCore line with or without Load-Line Calibration (LLC) enable.

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As you can see above, AIDA64 reports an erroneous CPU core voltage – same as CPU-Z does – since it is unable to properly read the voltage monitoring sensor on this motherboard. While the CPU VID voltage looks plausibly correct, it is also wrong if you take a peak at what the AMD Ryzen Master utility is reporting as the actual CPU voltage. While looking at the Ryzen Master utility we saw the voltage fluctuate between 1.26250V and 1.26875V with LLC off and with LLC at Level 1 (most aggressive). As mentioned in the software section, at least for now, we highly recommend using this AMD-source utility as the primary source of your voltage and temperature monitoring on this AM4 platform.

It is quite possible that we will need to revise or even scrap this test in the future, since the unique way in which Ryzen processors manage their voltage might not even allow a vCore line that is straight as an arrow, which is something that you can do on Intel’s platforms. We will know better once we get our hands on another X370 motherboard.

Power Consumption

For this section, every energy saving feature was enabled in the BIOS and the Windows power plan was changed from High Performance to Balanced. For our idle test, we let the system idle for 15 minutes and measured the peak wattage through our UPM EM100 power meter. For our CPU load test, we ran Prime 95 In-place large FFTs on all available threads, measuring the peak wattage via the UPM EM100 power meter. For our overall system load test, we ran Prime 95 on all available threads while simultaneously loading the GPU with 3DMark Vantage – Test 6 Perlin Noise.

Given the fact that AMD recommends placing the Windows power plan in High Performance mode instead of Balanced mode in order to get the best possible performance, that is what we did. However, there was clearly an effect on the idle power consumption numbers. For example, when we did switch to Balanced mode, the idle numbers dropped from the 68W to 56W for our most basic configuration.

At the moment, we have nothing to directly compare these ASRock X370 Taichi numbers with – unless you to want compare with a ASRock Fatal1ty Z270 Gaming K6 – but looking at multiple other sources we see that these power consumption results are exactly where they should be. Once you pump a bit of extra voltage into a Ryzen chip and start raising the frequency across all cores, its current draw rises quite a lot, hence the large power consumption increase in our overclocked configuration.

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