A bit later though, I found out that pulling out the plug and inserting it back in would once again power up, though shut down just after that. And a few tries later, trying to find out what could be the problem, (looked for coolers not running etc., which all worked by the way) it suddenly did manage to completely boot. At that point I could use the comp as much as id like, but unfortunately, once I closed off the computer, the problem returned, and I chose not to mess with it any longer.
Now, I looked up a few things myself, and I think that it is the feeder (is that correct? Im not english myself so I am not sure) that is no longer functioning properly. However, before I go buy myself a new feeder, I want to hear some off the people who know these things better than I do, and see what they think. And lastly, would installing a new feeder prove difficult? Which new feeder would be recomended? And perhaps a linkthrough to a guide showing me how its done?
Thanks to all who help (or are willing to )
ps: sorry for any grammatic errors or so. As I said, im not english myself.