[SOLVED] 2400MHz Works as 2133MHz

[lior174]

Hi, I recently purchased 2x8 G.Skill RipJaws 2xF4-2400C17D-16GVR. I already have installed on my motherboard 2x8 F4-2400C15D-16GRR.
The old ones installed on DIMM_A2 and DIMM_B2
and working on 2400MHz with xmp enabled, as recommended by the motherboard manual.
The new ones I installed on DIMM_A1 and DIMM_B1 and they are working on 2133MHz. I cant figure out why.
My mother board is Asus ROG STRIX Z270H Gaming. Bios version is updated to newest one.

Thanks, Any help would be much appreciated.

 

[lior174]

Fixed by changing the new ones to DIMM_A2 and DIMM_B2 and old ones to DIMM_A1 DIMM_B1 and setting bios to default and enabling XMP after.

 

[MeanMachine41]

There is no guarantee the two differing kits will work together and have stability. If they do they would default to the lowest Frequency at 2133MHz. Never a good idea to combine kits with differing frequencies and timings.