Mother ASUS TUF B450 Pro Gaming - good in all respects, including sound, everything pulls. The RAM is so-so - Patriot Viper PV432G300C6K, pulls only 3200 MHz at timings 16-18-18-36, stupidly the cheapest kit at that time. You can squeeze another 10-15% out of the processor if you set the memory to 3600. Briefly about voltage control. It is not enough to disable PBO, you also need to configure LLC, because PBO is responsible for overclocking and limits, and not for instantaneous power settings. In any case, the mother manages the power supply, increasing / decreasing the voltage at the time of loads, but not climbing above the limit, and that's just how it can often be safely lowered. You can read about the complexity of power management on microcircuits on Habré, the article "Powering modern processors" dated 06/03/2022. Proc ran at an incredible 4600 at 1.275 V! But the tests did not pass, of course, immediately reboot due to lack of power. And with an increase to 1.35 V, it rebooted already from overheating and errors. I worked at 4500, even passed AIDA tests, except for FPU64 - it stupidly did not give a result, an empty field. 4400 should be stable for many hours (it's the most for igor), and 4300, I think, will be really stable even under daily stress.
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