TL;DR - cannot POST with DRAM in B channel.BIOS: 0903 x64CPU: i9-9900K @ 3.60DRAM: G.Skill 4x8 @ 3600 quad kitDRAM Part: F4-3600C17Q-32GTZRDRAM is a quad kit. I verified sequential serial numbers. Listed in the ASUS QVL as well as the G.Skill QVL.G.S...