[SOLVED] Mixed RAM only works at dual/single channel

[xpLoaDeD]

Hi,

So im upgrading this system:
i5 7500
asus prime z270-k

original RAM installed GSKILL
Ripjaws V
DDR4-2666 CL15-15-15-35 1.20V
8GB (2x4GB)

Running at dual channel at 2133 (2666 with XMP)

I went and bought a couple of Crucial Value 8gb 2666 CL19 so i can run them at 16gb dual channel (2x8) and the original kit on the other channel. I dont really care about frequency i just want them to run a 2133mhz full 24gb.
So far i only managed to make the system boot with this config:

Channel A1-B1 both crucial 8gb running at 2133mhz
Channel A2-B2 one ONLY gskill stick, if i had the second one , system wont boot. I dont know what to do. I can get 20gb but not 24gb...
I tried manually setting the crucial ram to 2133 and then adding the GSKILL ones, didnt work

Thoughts?

Thanks!

 

[xpLoaDeD]

nvm, i got it to work by loading bios defaults and the manually setting DRAM at 2133, I then added the last GSKILL stick and now it runs 24gb at 2133 , cool