It is important that the desired modules are listed on the QVL list (https://rog.asus.com/ch-de...). Otherwise, problems cannot be ruled out. I would therefore take the QVL list "Memory QVL for AMD Ryzen™ 5000 Series Processors_X570" and find a 64GB module set there, which is also offered by Digitec. Pay attention to the exact type designation and take into account how many DIMMs can be used in the columns on the far right. I myself use 32GB Corsair Venegance LPX DDR-3200.