3600 MHz RAM on AMD B550
Up until a couple of weekends ago, I’d been running my Corsair Vengeance LPX 2x8 GB RAM at 3600 MHz on my ASRock B550M Steel Legend and AMD Ryzen 5 5600X. In fact, I did even better than XMP settings, with a stable system even though I pushed RAM timings by reducing CAS 18 to CAS 16. Then, I upgraded my motherboard BIOS to AMD AGESA AM4 v2 1.2.0.2... and now I can no longer run at 3600 MHz!