Have you made sure your RAM is compatible with your board?I5 8400
Corsair Vengeance LPX 16 Gb Ram
550 Megawatt Cooler Master
B360M PRO-VDH Motherboard
MX330 Cougar Case
Acer Predator XB241H bmipr 24-inch Full HD 1920x1080 NVIDIA G-Sync Display, 144Hz, 2 x 2w speakers, HDMI & DP monitor
https://www.msi.com/Motherboard/support/B360M-PRO-VDH#support-mem-6 type in whoever made the RAM in your case: Corsair and copy each model and paste into another tab to see if it matches with your sticksNo, how do I do that?