Will adding a 3rd stick of RAM work?

Question

Iron

The computer has 2x4GB ddr4 2400 installed. I want to buy another 8GB stick with the same frequency, and from the same manufacturer, since buying 2x4GB again is ≈1000 rubles more expensive :). Will all this start and will the dual-channel work if set according to this scheme: [0 - 4gb: 2400 - 8gb: 2400 - 4gb: 2400]?
msi b450m pro-vdh plus board

Answer 1

It is better to overpay 1000 rubles and you will not lose speed on 2-channel operation, otherwise it will all work in single-channel mode.

Answer 2

will work.
multi-channel mode on all three bars with a high probability will not work .
for accuracy, carefully read the documentation for the motherboard, the possible modes should be listed there

Answer 3

It’s better to sell 2x4 before it’s too late and take at least 2x8, or even 1x16
2x4 ddr4 is no longer needed by anyone - therefore it is significantly more expensive, this is essentially the minimum size for ddr4, like 512 for ddr2

Answer 4

One will not work for 16, the author most likely has Ryazan, without a two-channel it is very sad. And yes, it is better to overpay a thousand and install 2 pairs of modules. And it is worth considering the memory overclocking settings, 4 bars will not take the same frequencies as 2

Answer 5

Please refer to your processor documentation when installing memory because there may be limitations in the types and configurations of supported modules.