PBO plus underclocking for maximum clock speed while lowering temperatures on Ryzen 2700x+X470 Taichi
PBO plus underclocking for maximum clock speed while lowering temperatures on Ryzen 2700x+X470 Taichi
It depends on whether you're attempting to undervolt, and I'm not sure if Ryzen Master works for your setup since board support varies. Typically, the motherboard is used for overclocking Intel CPUs, but the program simplifies the process. Sorry, I can't assist with voltage settings directly.
I omitted mentioning undervolting in the title, using a negative offset instead. It appears that PBO ENABLED doesn't automatically yield optimal performance when a negative offset is applied to the vcore, as the Ryzen 2000 series logic performs better at lower temperatures. Reducing the voltage further could increase temperature by at least 5 degrees and keep it below 60°C during gaming. This was improved with an aggressive fan curve, ensuring the CPU stays above 50°C above the fan speed. The outcome largely depends on the CPU quality. The ideal configuration is setting the CPU and Soc LLC to 5, keeping the motherboard less aggressive, leaving RAM voltage unchanged, and applying a negative offset of -0.100. This setup likely won't cause boot issues, though some builds may succeed more easily. Others recommend fixing the SOC voltage at 1.0125V and adjusting it down if the system boots normally with different settings. For now, I tested with LLC 4, negative offset -0.100, RAM at 3200 at its original 1.35V, and fixed SOC voltage. Playing Dauntless gave better results than expected: PBO AUTO reached 68°C, now capped at 60°C, with most runs stabilizing around 55-58°C. The vcore never hit 1.4V, peaking at 1.387V. If you have a Ryzen 2000 series, this adjustment is especially helpful during hot weather.
Using PBO AUTO with all voltages auto set to 70 degrees achieved this even briefly, with a maximum vcore of 1.45 for a boost up to 4100mhz. When PBO ENABLED was applied, offset on vcore became -0.100. Both the LLC 3 units (the last one caused issues) and the SOC version 1.0125 reached a maximum of 60 degrees with a vcore of 1.387, which is lower than the 1.45 target for a boost of 4250mhz. It seems worth trying. I'm playing Dauntless—it's not the most intense game, but you can already see the improvement.
That's positive! It's nice to learn that undervolting works effectively for AMD GPUs and could also benefit CPUs.
Now waiting next electricity bill, hope there will be some economical advantage too