As @RipGroove said, System Agent and CPUIO2/Mem OC voltages (whatever they are called on Gigabyte Z590, find out) can play a big role in memory on Rocket Lake, and up to 1.5v for System Agent is safe (according to an OcUK technician). I believe 1.4v is safe for CPUIO2/Mem OC. The values are a...