Over the past couple days my PC has been occasionally making some weird noises. It is a rapid and intermittent clicking sound. Now this morning it refused to start, I push the power button but nothing happens. It is an old Alienware PC that I bought 5 or 6 years ago. I've replaced the hard drive about a year ago and one of the optical drives as well. I've done a search and most of what I've found seems to point to either a hard drive issue or power supply problems. My own first thought currently is that it is the power supply. Any other people have this sort of thing happen? I'm probably just going to go out and pick up a new power supply this evening after work and try it out and hope that's what it is.