Zoso1291 wrote:
I have 24GB of ram but 4GB x2 and 16GB x1
The two 4GB memory sticks are in dual channel mode. The single 16GB memory stick is in single channel mode. So you're running a mixture of single channel and dual channel memory.
Only one third of your system memory is running in dual channel mode (4GB x2). The remaining two thirds of system memory is single channel (16GB x1).
Dual channel mode needs two matching memory sticks in the proper memory slots on the motherboard.
For example, memory slots A1 and B1 are matching dual channel slots. A2 and B2 are also matching dual channel slots.
Refer to your motherboard's user manual for proper dual channel memory slot configuration.
It's not recommended to mix and match memory sticks made by different manufacturers and memory sizes. Ideally you want to use memory sticks all made by the same manufacturer and of the same size and speed for optimal performance and stability.
Each motherboard manufacturer publishes a Qualified Vendor List (QVL) which lists memory the motherboard manufacturer has tested and tuned for their motherboards.
You can find the QVL memory list on the motherboard manufacturer website under the support section.
https://www.msi.com/Motherboard/MAG-X870E-TOMAHAWK-WIFI/support#mem
What I do is shop for memory and find something I like. Then I search for the model number of the memory in the QVL list to see if it's been tested and tuned for my motherboard.
Buying memory on the QVL list prevents system instability issues. Such as the computer suddenly shutting down in the middle of a game, or DirectX error messages about the GPU driver hanging and crashing with error messages saying the video card has been unplugged in the middle of a game.
