So, my computer was perfectly fine, but then I pressed a button on my keyboard, which 'turns off' the pc, but it didn't, so I switched the power button (where you can set of the computer should get electricity or not) at the back of the pc, to turn it off. But when I was trying to turn it back on, it did this: power button lights up, but then I hear some sort of weird noise, and the computer restarts. After it restarted, there's no beep, nothing on screen, disk usage indicator not flashing at all, but the fans are running. Thanks for any kind of help