Different (2x8) ram kits compatibility.

[MasonCase]

I've been using G.Skill ripjaws memory 3200 cl 16 (2x8). I've noticed lately when using obs and tabbing in and out of full-screen games (specifically apex as of late which seems to use moire ram than most games I play) my PC cannot transition very well which has led me to believe I just don't have enough memory for everything to be loaded. I am considering adding another (2x8) kit at the same speeds giving me (4x8) . Will I have compatibility issues doing this, not having the same stick even if they are the same speed and latency? I specifically had me eyes on the corsair rgb kit because I feel like like it will finish off my build nicely since I have a lot of corsair components. Might I just need to bite the bullet and get a full (4x8) kit?

[dabhead]

My shit runs perfectly fine.. Just defaults to slowest speed(1600).

[Turtle Rig]

1 hour ago, MasonCase said:

I've been using G.Skill ripjaws memory 3200 cl 16 (2x8). I've noticed lately when using obs and tabbing in and out of full-screen games (specifically apex as of late which seems to use moire ram than most games I play) my PC cannot transition very well which has led me to believe I just don't have enough memory for everything to be loaded. I am considering adding another (2x8) kit at the same speeds giving me (4x8) . Will I have compatibility issues doing this, not having the same stick even if they are the same speed and latency? I specifically had me eyes on the corsair rgb kit because I feel like like it will finish off my build nicely since I have a lot of corsair components. Might I just need to bite the bullet and get a full (4x8) kit?

You must set the RAM speed and timings to the slower RAM and what not.

[HoneyBadger84]

It will likely add some stress to the memory controller, and keep in mind you'll want to re-stability test if you're running any kind of overclock. I had an OC that was tested stable when running 2x8GB of my kit of memory but when I put the other 2 sticks in, it was unstable enough that it blue screened out of nowhere. I'm assuming I just need to bump some secondary voltages, but I haven't bothered yet as I think I'm going to just get a 2x16GB kit instead. 

 

Side note, the 4x8GB setup did test perfectly stable at stock/quot everything with XMP enabled though. 

[MasonCase]

1 hour ago, data55 said:

My shit runs perfectly fine.. Just defaults to slowest speed(1600).

 

8 minutes ago, Turtle Rig said:

You must set the RAM speed and timings to the slower RAM and what not.

So if they are both the same frequency and timings I should be good to go without lowering either right?

[MasonCase]

2 minutes ago, HoneyBadger84 said:

It will likely add some stress to the memory controller, and keep in mind you'll want to re-stability test if you're running any kind of overclock. I had an OC that was tested stable when running 2x8GB of my kit of memory but when I put the other 2 sticks in, it was unstable enough that it blue screened out of nowhere. I'm assuming I just need to bump some secondary voltages, but I haven't bothered yet as I think I'm going to just get a 2x16GB kit instead. 

 

Side note, the 4x8GB setup did test perfectly stable at stock/quot everything with XMP enabled though. 

Awesome thanks for the insight

[HoneyBadger84]

1 minute ago, MasonCase said:

Awesome thanks for the insight

Other than possibly needing a tiny bump on some voltages, it should "just work" if the timings & speed are matched.  I'm still researching which ones I most likely need to bump, I'm learning as I go with my Z390/9900K, there's a looooot more stuff that you can and sometimes need to change than my previous i7 3930k/x79 setup when it comes to getting the system happy with all DIMMs populated.