Optimize your AMD processor settings for better performance.
Optimize your AMD processor settings for better performance.
I'm trying to get the most performance out of an AMD Zen2 3700X chip while keeping power consumption low (around 30 watts) and using OCed memory within its limits. I'm looking into various adjustments that can be made together for optimal results. It's hard to know exactly what works best, but here are some points to consider:
1. CPU core voltage – lower voltages reduce power use and clock speeds.
2. Power in watts (PPT or SOC) – minimizing this is key.
3. EDC settings – higher values increase power draw.
4. DRAM voltage – should match OCed memory specs (around 1.45V).
5. LLC control – manages voltage scaling with amps.
6. 6-VRM frequency – may affect stability and efficiency.
7. VRM speed – could help under certain conditions, but its impact is unclear.
My ideas: balancing amp limits with higher voltages and offsets might let you hit higher clocks at 30 watts, though this could raise idle power. Pushing LLC to extreme settings with voltage offsets on cores and limiting SOC power might reduce idle consumption but risk clock stability under load. It's still unclear if these tweaks are correct or effective.
You're aiming for maximum performance within a tight power constraint. Avoiding current limits early is key—extreme voltage spikes can harm hardware and increase power consumption. Instead, configure the power limit (PPT) to 30W, choose a medium LLC setting, and minimize voltage offset. Experiment with various TDC and EDC values while keeping other CPU parameters stable.
Exterme LLC causes damage solely when high voltages are applied, and the voltage spike does not affect power usage for even a tiny fraction of a second.
Wattage equals Voltage multiplied by Current. Keeping wattage constant while raising voltage leads to significantly lower amperage. If the CPU cannot sustain the required amps at that voltage, it may cause instability or prevent achieving higher clock speeds.
You're operating at increased voltages because small drops become more noticeable with advanced LLC designs; these drops indicate the necessity for a higher average voltage to prevent system failure.
The LLC system doesn't handle voltage changes well, especially when under load. It only notices a drop in voltage and can't predict how the CPU will adjust its current usage, which leads to unexpected spikes and drops. When the voltage gets too low during these dips, the CPU may crash even if the issue is brief. To fix this, you'd need to increase the voltage temporarily, but that raises your power consumption. Extreme LLC performs more than it appears, but its performance isn't as strong as it seems.
At a specific voltage during CPU load, it triggers a Vdroop effect that then settles again due to changing current. What LLC does is reducing this drop when set above a certain level, which raises voltages beyond what BIOS already defines. For instance, if you configure 1.2 and the CPU loads, Extreme LLC might push output voltage up to 1.3 or higher, which could be problematic if the reference voltage is elevated.