I had my PC for a year or so... and it is a very noisy one. I decided to take a look (after a year of owning the pc). I was laying the PC on it's side, I accidently let it drop the way down, and it booted properly after I dropped it, I left it on. I looked around noticed something, the cpu fan it wasn't moving and everything else working fine. I thought it was something the connection to the MOBO, so I turned of the computer and plugged it in. The computer booted, but the fan wasn't spinning. I turned it of and pulled out the power cord. And I found out 2 of the fans blades were jamming the fan, so I moved it pushed spinned around great. Put back the power cord and I press the power button nothing happens. What do you think is the problem: I don't know what to replace the PSU or something else.