well i opened my computer up to get ready to swap my graphics cards and i forgot to plug the old ones back in after i decided "i'll wait until it gets here"
the computer made a loud angry beeping noise when i plugged it in and i figured out why and fixed it
then my computer failed to POST when i started it up, the first time I just continued and nothing seemed to be wrong, in fact it seemed to run better than before.
the second time i went to setup, did nothing, exited discarding changes, started up again an hour or so later.
the computer started up normally
WAT