I just built my first pc and was very happy about it. It turned it on and was working well. On the second day of use, by chance, I looked at task manager because I wanted to see how my pc was holding up. I suddenly saw that there was 2.2 gb. I was very surprised and had no idea what was going on. I updated my bios and everything. I swapped the position of my RAM sticks. I checked off limited ram in the boot tab. It just does not want to change. The RAM sticks I am using are 2x8gb G. Skill Trident Z at 3000mhz. please help, I have no idea what to do.