deustroop
Golden Member
I just popped a i9900K into a z390 board and out of the box the cpu runs all cores @ 5GHz at low load, ` 2%.. MCE is set to auto, which appears to be the same as Off. The only manual feature I have set is Dram freq.
When I set up a stress test ( cpu-Z, Intel Tuning), all core, and 100% use, all core freqs drop down to 4.7 and the power usage also declines eventually and stays within the TDP 90 W. I understand this is a stepping down to save power. My question is whether the 5GHz on all cores at low usage ( ~ 2%) is normal, and specifically, that all cores are in lock step ?
I can ""overclock" this cpu, if that is what's it called, by setting MCE to On. Then at 100% usage, the cpu does slightly over 5GHz on all cores permanently, with no power conservation. The watage is ~130w and package temps are 75-83c .
Why lock step for every freq. Is this overclocking normal as well ?
When I set up a stress test ( cpu-Z, Intel Tuning), all core, and 100% use, all core freqs drop down to 4.7 and the power usage also declines eventually and stays within the TDP 90 W. I understand this is a stepping down to save power. My question is whether the 5GHz on all cores at low usage ( ~ 2%) is normal, and specifically, that all cores are in lock step ?
I can ""overclock" this cpu, if that is what's it called, by setting MCE to On. Then at 100% usage, the cpu does slightly over 5GHz on all cores permanently, with no power conservation. The watage is ~130w and package temps are 75-83c .
Why lock step for every freq. Is this overclocking normal as well ?
