Question No display on either of my monitors after removing and re-inserting RAM sticks?

[Michal1012]

My PC was working perfectly fine until I noticed that I am having low fps on games which it previoisly ran smoothly. I went into the task manager and in the performance tab it showed that my PC only has 8GB of RAM, even though I have two 8GB sticks installed. I turned the PC off together with the power supply and then proceeded to remove both RAM sticks and insert them back in again. Then I turned on the PC and I had no display on both either of my monitors. Additionally, when turning on the PC, the GPU fans were spinning for a second but then stopped as if the GPU was off, even though the GPU'S RGB was still on. I have already tried to remove the RAM sticks one by one and turning the PC back on again, but I still had no display. Anyone knows what the issue might be and how I can fix it?

Specs:
MOBO: ASUS ROG Strix B360-F Gaming, S-1151
GPU: ASUS GeForce RTX 2060 DUAL EVO
CPU: Intel Core i5-9600K
RAM: Corsair Vengeance LPX DDR4 2400MHz 16GB
SSD: Kingston A1000 480GB M.2 SSD
HDD: Seagate Barracuda 1TB 3.5" HDD
PSU: Corsair Vengeance 750M, 750W PSU