Hello Everyone!
I'm having issues with my new build, PC won't turn on when I use optimised RAM slots (A2,B2) but will boot up when RAM is in A1,A2 however speed is locked at 2666MHz.
RAM Corsair Vengeance LPX Black 32GB 3600MHz 2x16GB DDR4
MOBO MSI PRO B660M-A WIFI DDR4 Intel Motherboard
BIOS...