I'm building a new system around a Z390 Auros Master board. I bought 64gb of Micron Crucial Ballistix memory (4x16 GB, DDR4-2666 UDIMM). Any 2 of the chips work fine with dual channel memory supported when installed in DDR4_A1+DDR4_B1 OR DDR4_A2+DDR4_B2. But if I install all 4 chips, the system won't boot into BIOS. Crucial claims this memory is compatible with this board, but I'm not seeing these chips listed in Gigabyte's memory compatibility list for this board. Any thoughts on what's going on here and whether it can be salvaged?