I powered it up and everything worked, but instead of seeing BIOS, I saw a menu with my motherboard's logo on it. I looked at some of the settings, but as I couldn't understand what most of them meant, I immediately installed windows 8.1, not wanting to screw anything up. Windows installed normally and I was able to see my desktop. I had to go somewhere else for an hour, so I turned off my computer and came back to it in an hour. Then, when I tried to turn it on, all the fans would turn on, but my monitor said "no signal." I tried replacing the CMOS battery, but it still didn't work. I took out the RAM, and blew gently on it and it turned on.
I installed the drivers from the disk that came with my motherboard, in hopes of there being a network driver (which there wasn't). This required me to restart my computer several times, each time it restarted succesfully. A bit later, when I tried to turn it on, I had the same problem where the fans would turn on, but the monitor would read "no signal." I tried the same things I had before (I didn't buy a new CMOS battery though, I just took it out and put it back in) but it didn't work.
Then, what started happening was that whenever I tried to turn it on, the fans would start running, and stop, then start again, then stop. On and on and on until I switched off the power at the power supply. It still does that when I try to turn it on now, approximately 12 hours after I first had the problem with the fans. Any ideas what's wrong?
Edited by Nodrokov, 03 November 2013 - 11:12 AM.