I went to turn on my computer and found that it will not boot up properly when I first press the power button.
What does happen is that it seems to get caught in a reboot cycle where the fans start spinning, lights turn on and after about 10-15 seconds everything shuts down again and repeats by itself. No signal is being sent to the monitor (eg. it stays on standby) and the usual *beep* coming from the computer doesn't sound off.
Computer is about 24ish months old, from Dell and has no recent hardware changes.
I manage to get it to turn on properly by continually pressing the power button, but it takes longer everytime and I don't want to reach the point where it doesn't work.
Any help would be greatly appreciated

