Whenever I try to turn my computer on after it has been shut off for the night only the fans go on and it fails to boot. After turning the motherboard off and on it will boot with one beep going off during post, and according to the User Guide manual, the possible errors could be: "keyboard controller error", "Refresh time error", or "No Master drive detected". It still stars however, but some programs don't run on startup and it is overall extremely slow. Then I restart my computer and everything is running perfectly. Any ideas what is causing this? And sorry if I posted in the wrong forum. I wasn't exactly sure where to post.