- Motherboard: MSI Z390-A PRO (Bios is up-to-date.)
- CPU: Intel Core i5-9600K
- RAM: Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz (TWO KITS)
- GPU: MSI GAMING GeForce RTX 2060 6GB
- PSU: Corsair CX Series 550 Watt
- SSD: WD Blue 3D NAND 1TB PC SSD - SATA III 6 Gb/s, M.2 2280
Working on a new build, and I'm having issues getting the it to boot up with all of the RAM. Currently only boots with DIMMA2+DIMMB2 occupied, or DIMMA1+DIMMB1 (but with a warning that the slots are non-optimized and A2+B2 should be used if using only 2 sticks of RAM), but I think it's not running the RAM at full speed (BIOS reports the DRAM frequency / DDR speed as "800 MHz" - [BIOS screen](https://i.