Z390i phantom, 280mm be quiet silent loop AIO, Delidded CPU with LM and GC Gelid extreme on the die, LLC2 was used on the board, 1.48V DIMM, which lead to 1.5V DIMM on load. SA was at 1.26V and IO was at 1.25V Amazing motherboard overall, In addition to this, I had a 140mm fan over the RAM sticks to keep them cool. In addition to this the CPU was at 5.3ghz and 5ghz core @ 1.45V set with LLC2.