CountMike :
Faulty fan wouldn't run and clicking noise can come only from hard disk or OOD. Try with all drives disconnected.
Hey, sorry it has taken me so long to reply to your answer. I couldn't log on, because it kept giving me error 500 message. It frustrated me, but then just today I realized that I was on the UK Tom's Hardware, and when I switched to US it worked again! I feel so stupid!
Another stupid mistake that I made was that I plugged my monitor into the wrong VGA port!!! So when I plugged the VGA cord into the correct VGA peripheral, I got something on the screen. There was the Asus splash screen, followed by maybe one or two other screens, one of which said American Trends, but it was all jumbled up and each half of the screen was a mirror of the other. The fan was still running really loud.
Anyways, so I unplugged the hard drive and booted like you suggested, and the fans went back to normal! They weren't pumping air as if they were doing a marathon anymore. So, thank you for the advice!!
When I booted without the hard drive plugged in, the Asus splash screen came up again, and this time the screen that said American Trends was normal; but after that, the screen was black (not off). I let it sit there for a couple minutes, and it didn't do anything, so I shut the tower off. Is this normal without the hard drive in?
I have ordered a Western Digital hard drive off of Amazon, and I will update when it arrives and I swap it in.