Make sure your processor is properly cooled as adding voltage = more heat.Start at 1.30 ~ 1.35 volts and work your way upwards into a state of equilibrium in perf and cooling temps. Increase CPU voltage though AUTO often works fine on many motherboards you can do it manually as well.Set the per core multiplier at a maximum of your liking:.Leave base clock (bus) for what it is right now (100 MHz).Results may vary, as we are using ES samples. Your reachable target for Coffee Lake-S in the 9000 series is 5 GHz to 5.2 GHz on all cores, with a good processor. The generic overclock procedure for multiplier based overclocking is as follows: The Guru3D reader-base overclocks mostly from the BIOS to try and find the maximum stable limit. Overclocking multiple cores to a high clock frequency is a relatively easy to do job, but is managed best from the BIOS. Overclocking with a many core processor (doesn't matter if that is Intel or AMD) is more complicated than you expect it to be. Also get yourself a good power supply and proper processor cooling. If you plan to overclock, always invest in good hardware by the way (MOBO/PSU/Memory/Cooling), the cheaper motherboards often are not well tuned or do not have broad-spectrum features for enthusiast overclocking. Even newer motherboards have AI overclocking available in the BIOS, by algorithm it'll learn the best stable tweak. The good news is that on most motherboards you can leave voltage settings at auto.

The voltage will vary per processor, but you should sit in the 1.30~1.35 Volt range. Any and all CPUs we tested reached 5200 MHz on all cores (this includes the six and eight-core parts). Overclocking, tweaking the Core 9000 series is fairly simple.

Intel extreme tuning utility i9 9900k