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GIGABYTE AMD X570 Ryzen Overclocking Guide (Page 5)

By Steven Bassiri from 2 days, 4 hours ago

Advanced Voltages

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Here we have our advanced voltage settings, the Load Line Calibration settings are for the VCore and the SoC rails, these settings will control how much of a drop will occur during a load change, and they can greatly affect stability. The VCore the SOC protections are there to shut the system down if the voltage goes too high, like if you set LLC to strong and the voltage spiked up way too high.

The VCore Current Protection can be maximized when overclocking, as this is the current limit for the VRM and not for the CPU. PWM Phase Control is a feature found on the high-end digital PWM controller on the motherboard, it takes current and temperature into consideration, and can be set to maximize performance or efficiency, we recommend setting it to eXm Perf that favors performance and current over temperature.

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In the new UEFI GIGABYTE added in a LLC graph to show the effect of each LLC level. The levels such as Standard, Low, Medium, High, Turbo, Extreme, and Ultra Extreme allow lesser drop in ascending order. Level Low will allow for more drop under load then High. We really prefer Turbo, it allows for a slight 0.01-0.015v drop under load, which we think is healthier than a rise in voltage over what you set, which is what Extreme and Ultra Extreme will do, but sometimes you might need those for stability.

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There is a setting menu under the "Settings" Tab inside the "AMD Overclocking" menu, which is AMD's consolidated overclocking settings location. Here is where you will find the FCLK control under the DDR and Infinity Fabric Frequency/Timings, here you can lower the FCLK if you are facing instability. The FCLK not only gets unstable around ~1800MHz (3600MHz DRAM speed) but it can degrade performance if unstable since there can be a penalty from error correction mechanisms.

SoC voltage in the main BIOS menu and VDDG can stabilize FCLK. You can overclock the CPU from here, control Performance Boost Overdrive and its aggressiveness. The SoC Voltage here is different than the one in the main menu, it's the SoC voltage before memory training and before BIOS takes control of the CPU. You should set the BIOS VCore SoC voltage instead.

VDDG: This voltage can be used to stability the FCLK clock, it's 0.95v by default. Now, the VDDG is derived from a linear regulator from the SoC voltage, so you cannot set this higher than the SoC voltage in the main BIOS page, you can try 1.1-1.15v VDDG when the SoC voltage is right around 1.2v. You might not ever need to touch this voltage though, as you can always decrease FCLK through the FCLK menu and avoid instability when using higher memory speeds.

VDDP: Much like the VDDG rail, the VDDP rail is derived from the SoC voltage, so it cannot be set higher. It can be useful for memory overclocks over 4000MHz. You can set it here or in the main voltages menu, we recommend +0.2v.

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Back in the "Tweakers" menu, we find DDRVPP and DRAM Termination. The DDR VPP voltage is a power savings voltage introduced to save power on DDR4, it's almost always just 2.5v, there isn't much need to alter this. Then we have DRAM Termination voltage, which is half of DRAM voltage, if you are using higher DRAM voltage you can try increasing this a few mv to see if it helps with stability, otherwise the motherboard automatically sets this at half DRAM voltage.

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