So I've been having an issue. I moved my old PC's components to a new case. Now when I turn it on, it doesn't go past the DRAM color on the board. I have 4 sticks of 8GB G.Skill Trident running at 3000MHz. The only combination that works is when I put two sticks in slots B1 and B2. That combination allows the PC to boot. None of the A slots work. Of note, when I first put this PC together, I just had 2 sticks in their proper slots for dual channel support. When I purchased the other 2 and installed them, I had the same issue I am having now. But eventually they started working. The new sticks never showed up in HWinfo64 for all the time they were working, but they were available. Any ideas would be appreciated. Specs are below.
CPU:9900k 4.7 GHz all cores
Board: Asus Prime Z390-A
PSU:Corsair RM850x
Memory:G.Skill TridentZ RGB DDR 3000 8GB x4
GPU: Asus Strix 3060 Ti
CPU:9900k 4.7 GHz all cores
Board: Asus Prime Z390-A
PSU:Corsair RM850x
Memory:G.Skill TridentZ RGB DDR 3000 8GB x4
GPU: Asus Strix 3060 Ti