Size of the RAM stick affects performance, while dual channels improve data transfer speed.
Size of the RAM stick affects performance, while dual channels improve data transfer speed.
You have two 16 GB dual channel cables and two 8 GB dual channel cables. Your motherboard supports four RAM slots, so you should arrange the cables accordingly: 16/16/8/8 or 16/8/16/8. The compatibility discussions focus mainly on compatibility, not performance differences. Make sure your cables match the specifications of your ASUS Prime Z490-A motherboard.
Beginning at the closest slot to the CPU, I'd use 8/16/8/16. This spreads the capacity evenly between the two channels. The speed of the sticks may affect whether you can hit their maximum potential with four sticks in place.
Porina is right, 8/16/8/16. The initial 8GB on every stick will perform optimally, and the remaining 8GB on the second set will operate in dual channel. Intel’s processors should manage that setup. Still, even with identical brands, the actual memory might differ by manufacturer or version within a brand. It’s best to run comprehensive tests to detect issues. If errors appear or crashes occur, adjust memory timings for stability. Alternatively, lowering memory speed is simpler but results in reduced performance.
Thank you for sharing your experience. Your background in building computers for years gives you valuable insight, even if you're still learning about the inner workings of components. This information is really helpful.