...you might try other options before replacing it..
1. If you have a different power cord to try, simply swap in another known "good" power cord and see if it makes a difference..
2. Because power strips can occasionally cause issues, try plugging straight into the wall socket.
3. As to your statement: "would not turn on at all"....what EXACTLY does that mean? Although you see the green light on the back of the tower, do you hear fans turning inside? Do you hear the hard drive spin up at all? If none of that is occurring, and none of the steps above help, then your next step is to replace the power supply.. If you're unable to accomplish the task, then a qualified tech at a local shop should be able to do it easily and quickly...
A quick internet search should give you instructions for performing the power supply replacement, if you're feeling adventurous. Making sure it's the right size is important, (ATX vs something else), and for many, simply marking each of the current connection wires with masking tape/numbers should allow you to correctly connect all the new wiring when you replace the unit... It's up to you.
Hope this helps.
Ok heres what happened. I unplugged my computer (tower, monitor, pretty much everything else hooked up to it) to move it all out of the basement in case there was flooding from the hurricane. I unplugged everything sunday morning and moved it all upstairs, and attempted to plug everything back in around 3 hours ago. We did lose power several times, but the computer and everything else was all unplugged before we lost power, so that can't be the cause of it. I believe I plugged in everything correctly (I'm not a computer expert by any means) and when I attempted to plug in the tower into the surge protector, the tower would not turn on at all.
Its a 5 year old HP Elite PC and I have never had any hardware problems whatsoever. The power strip was working because the monitor, printer, speakers, modem and router all had power. Where the power cord plugs into the back of the tower, there is a solid green light that stays lit, but nothing else happens. I was doing some reading online and I saw it could be a problem with the PSU. I reset the red voltage switch (from 115 to 230, and back to 115) and that didn't do anything. The only on/off button is on the top of the tower, and when I press that, nothing happens.
I have never taken a computer tower apart before and I am afraid to do it myself, so I wont take that chance. What do you guys think I should do now?