Device setup configuration
Device setup configuration
Identify your specific board model so we can review the slot setup instructions.
it's not a dual channel setup—it's hybrid. I suggest purchasing another 16GB stick like that one, placing it in the second slot from right to left, and selling the rest. Alternatively, you could acquire two more 8GB sticks and sell those instead. These are the optimal approaches (ensure they match in frequency, latency, and manufacturer).
Not always guaranteed - some boards support dual channel only if both channels have matching RAM capacity, which could apply here. If one channel holds 2 x 8GB and another holds 16GB, it may function in dual mode. It doesn't happen every time, but certain scenarios allow it. That's why understanding the board model is important to verify the RAM slot setup in the manual.
As long as you keep RAM usage under 16gb, performance will be nearly comparable to 2x8gb. Once you exceed that amount, several factors come into play. 1) Is the stick dual-rank? (Check CPU-Z → SPD — ranks indicate dual or not). Most 16gb drives are dual-rank, so you’ll likely get similar advantages. 2) You exceed the 16gb limit while using programs that demand higher RAM (like gaming). If you’re working with large files in non-RAM-sensitive apps, the impact will be minimal. Although 2x16gb isn’t perfect, the performance drop is probably not significant. Try running games or benchmarks with 2x8gb (in games or apps that don’t push more than 16gb) and then compare to the original setup. This will help you decide if the upgrade is worth the investment. Good luck!
OK, looking at the manual, page 28, the first two slots are Channel A, and the 3rd,4th slots channel B. So that means in your config, you have the two 8GBs on Channel A, and the 16GB on Channel B, which since both channels match in size, there is a chance it will run in dual channel. But there are other things which play into this too, depending on how the sticks are configured, as @ RodrigoRS alluded to. Whether they are single sided or double sided, the Bank configuration, timings (though that's not as big an issue, the system should run at the speed of the slowest stick). So it may work in Dual Channel mode, but there is no Guarantee. From what I can see, Ryzen Master might be able to tell you if dua channel mode is enabled - I think it's called coupled mode, in the advanced view window. What many folk call Dual channel, is really interleave mode, which effectively doubles the speed the cpu can talk to your ram, by running them out of phase, and talking to them alternately. Since you have 3 sticks installed you are always "dual channel" as both channels have ram, what we are really trying to determine, is if it's just going to talk to one stick at a time, or if it can use interleave (or what I think they are calling coupled mode) to effectively double the data speed of talking to the ram. I'd download Ryzen Master, and have a look in the advanced view, and see what it's telling you. https://www.amd.com/en/technologies/ryzen-master
Check your system settings or run a command to verify the environment.