RAM or Motherboard Issue

[nasyesta36]

Hello I am running Ryzen 2600 B450M Asrock Pro4 and suppose to be 24 GB of RAM but windows dont see it that way and a GTX 1070 video card.  I'll get the obvious thing out of the way and see if it is because I have mix ram in my system for one and second if one of the RAM could be faulty.  I have arrange the ram in one order and windows was using 8 GB of 24 GB which was weird and then I rearrange the ram to different slots and now windows is using 13.7 GB of 24 GB.

 

The mixed RAM in my system is GSkill 16 GB DDR42400 8 x 8 kit Patriot 8 GB DDR4 2400 single stick and Kingston FuryX DDR4 2400 single stick

 

What Could the Issue be?

[Bravo1cc]

Just to confirm do you have 4 sticks of 8gb of ram or something else?

 

The mix of ram could be the issue, it could be the slots, i would suggest using the matching ram first and see if you have issues, then use the mismatched ram and see if you have issues. i would suggest using different slots too. This will take you a while but its the only way you will know. 

[nasyesta36]

I think I have sticks of that are 4 GB DDR4 2400 I will try that and thank you for the response 

[nasyesta36]

Ok I tried everything and I believe it is an incompatibility issue because I have the GSkill 16 GB kit in my system and it shows 8 GB usable and running at 2133 when I told the BIOS to run them at 2400 default XMP speed