Can I get an explanation?
For at least 3 months or so, half of my RAM was "put on reserve" and was unusable. I wrote it off as a bad RAM slot and was planning on replacing my motherboard eventually.
Today I noticed things loading up slightly faster and noticed it went back to normal.
What gives?
it didn't want to be replaced so it started to get its shit together
It could have just been a bad connection. Try taking your RAM out and them putting it back in securely.