2950x low CB after OS re-install

Discussion created by ewitte on Sep 28, 2019
Latest reply on Oct 6, 2019 by hardcoregames™

X399 Taichi

2950x at stock


Full custom EK water setup with 420mm radiator.


A few weeks back I replaced my 8x8GB DDR4 3200CL16 (running 2933) with 4x16GB DDR4 3600CL16.  I forgot to reset to default before changing out the memory so was continuing to run 2933 and got normal results of around 3200 (PBO is off the computer doesn't sleep if it is on).  


I pushed the memory to far and it corrupted the OS so I went ahead and did a clean install of windows 10 1903(no change).  My scores are now around 3060-3080.  Now if PBO is on it goes back to 3200 but I was getting 3400 before when PBO was on.


I've tried

- 2-3 different chipset drivers from AMD

- Updated BIOS

- BIOS "hardware defaults"