Optimize your AMD processor settings for better performance.
Optimize your AMD processor settings for better performance.
We're focusing on the immediate voltage reading (as displayed by an oscilloscope) while your thoughts remain on average voltage (shown by software and a multimeter). Progress stops until you move past this point.
We’re focusing on average voltage in this context, and I assume you understand that. The power usage depends more on the steady voltage than on short-term fluctuations. I’m trying to adjust the voltage to get better clock speeds, so if you’re not clear, don’t challenge my point. Take a look at your reasoning. For a second I was hoping to gain some insight. Appreciate your input—you’ve already made a lot of sense.
An example will work better if concepts dont work for you Let's say your CPU needs a minimum of 0.8V to be stable at 2.4GHz, and a VRM which when set to no LLC with C-states disabled (which only affects idle voltage anyway) will give you say, 0.95V idle, 0.85V average and 0.8V minimum. At extreme LLC and the same voltage target (i.e. what you entered in the BIOS), now it will do 0.98V idle, 1.05V average and 0.95V minimum. You can lower that down by 150mV so it hits the same 0.8V minimum while idle will be 0.83V, but the average is still at 0.95V. You're drawing more power for essentially, the same clock speed.
The figures I referenced seem inconsistent with typical motherboard behavior. Each system varies based on the manufacturer's approach to handling voltage spikes. Higher LLC levels can actually help overclockers reach greater voltages under load, as they restrict idle voltage settings—meaning they can't raise idle voltages excessively (e.g., 1.43V while idle vs. 1.35V during load). This reduces voltage droop and allows for higher load voltages when needed. The idea that LLC would lower efficiency isn’t supported; in fact, it can improve stability. Undervolting with LLC should be minimized to avoid unnecessary drops, especially since core voltage isn’t the priority here. Focusing on lowering idle voltage while letting the CPU manage its own needs seems more practical. It’s about balancing control without overcomplicating things.