[SOLVED] i can't overclock (safe XMP profile) 2133mhz to 3000mhz!! (A320M)

[aniketchakraborty.galaxy]

Hello Sir, I have a320m-s2h mobo + R5 3500+ 1x8GB Corsair V.LPX 3000hz ram & i recently bought 1x16GB corsair v.LPX 3000mhz (both ram models C16) after turning on (in bios) XMP profile to 2133 to 3000mhz but in windows task manager showing 2133mhz! why?? is AMD required the same ram to work XMP profile??? 2x8 or 2x16??
in my pc now 1x8 & 1x16 (if i set only 8gb then its works at 3000mhz but if I set only 16gb or both rams then its works at 2133)

 

[rgd1101]

if you mixing ram not in 1 kit. try oc it manually