visualife

hi guys, after some inactivity (and being moved rooms) my PC is dead. All connections and have checked, correct voltage switch on psu. When power is enabled to the PSU the following happens: the PSU gives off a high-pitched noise the green light appears on the motherboard the PSU fan doesn't engage no visible or audible system response pressing the 'power on' button on the front does nothing switching off power to the psu (rear switch) will slowly discharge the sound over approx 14 seconds help? is the PSU dead? I noticed no burning smells, grinding noises etc etc or anything amiss the last few times it was used. regards, Rich