No configuration is suggested for this setup.
No configuration is suggested for this setup.
Your current setup has 12GB RAM with an 8GB+4GB configuration, which is solid. Adding another 8GB and 4GB would bring you to 24GB total. Since your processor is DDR4 at 2400MHz, this upgrade should work well and won’t cause major issues. You’ll likely see better performance without noticeable inefficiencies.
Using two 8GB drives together works better than mixing different sizes.
They're correct. It will function and should work fine, though the RAM will operate at its minimum speed.
Combining memory modules isn't recommended, no matter the setup or whether they're exactly the same brand. For better performance, buying a kit that matches your needs is best. Mixing can sometimes cause problems like crashes or blue screens, or other issues—unless everything functions properly together. DDR3 was relatively straightforward to swap, but DDR4 tends to be more selective.
It should likely hold up as long as it isn't an early Ryzen, given its already low speed. There are several factors involved, so a definitive answer isn't guaranteed, but generally it should work fine. With four sticks—especially if some are dual rank—it might affect performance at higher speeds. At OP's 2400, you probably won't have issues as long as it isn't an early Ryzen.
What's the CPU, model, country, budget? You're mixing several things—have fun with compatibility. A 24GB setup isn't ideal unless you're planning a tricky tri rank configuration for matched ICS. For a 24GB plan, consider pairing M378A1G43EB1 and M378A5143EB1 to get a Samsung 4Gbit e-Die that matches your RAM requirements. This ensures stability. RAM is affordable now, especially with speeds under 2666 MHz. If you prefer two sticks, go for M378A2K43DB2 or HMA82G6DJR8N and clock them up to 3800. The stock 2133 speed isn't a big deal since you can easily boost it to 3200-3800.
Everything is working well. Please confirm the timing details and proceed. Ideally, using the same ICs would be best, though finding compatible ones can be challenging.