I'm waiting for the ASRock Z370 Extreme 4 to go on sale again since my ASUS TUF Z370 Plus Gaming is sent back because it bricked with the latest BIOS up date. The ASUS TUF Z370 Plus Gaming would overclock the 3200 speed cl 14 memory stable to 3866 speed at CL 16. Hopefully the ASRock Z370 Extreme 4 will overclock my memory to 4000 speed 17-17-17-37 stable.