Troubleshooting Power Supply

By Joel Rivera, November 19, 2008

Computer power supplies can live long or short time all depends how your house voltage fluctuate from high to low, when your house electric company goes up and down your computer power supply suffers shortening it life. To avoid shortening the life of your computer power supply install a Surge Protector or a battery, sometimes the electricity gain is so high that damage the power supply preventing your computer to power up. During a thunderstorm you should always unplug your computer from the 110V outlet to avoid power supply damages.

Below Tips on Detecting a Faulty Power Supply

Note: This is a correction, Transformers doesn’t hold current as the video said instead what it holds the current is the “Capacitor“, transformers are used by the power utility company to regulate and supply power to a specific area.

Do you have a Surge Protector or Battery installed in your computer?

Related posts:

  1. How to replace a defective Computer Power Supply
  2. Fixing your own PC links
  3. Troubleshooting/ Boot Process Menu
  4. PC Troubleshooting & Techniques Stategies
  5. Is your computer shutting down randomly?

4 Responses {+}
  • Ginny Newsom says:

    I have a new $40 power supply which I bought to handle a higher voltage graphics card. The power supply fan was obstructed by a bunch of papers and I believe it blew a fuse. I have opened the casing for it and can see the fuse. Do you think changing the fuse is a possible solve? Or does it kill off wiring and things. I guess all I can do is try, but I though I would see if there is anything else I should do before I put it back togehter. Thanks for any thoughts.

  • Joel says:

    Welcome Ginny,

    Well yes this can solve the problem unless the internal cables are damaged. But did you know you’re taking a risk of electric shock? Inside the Power Supply are little capacitors that hold a good amount of voltage which can give you a good hit. In my opinion you should get a new power supply, it’s more safe!

  • Ginny Newsom says:

    Good to know. I live alone… that’s all I’d need. If I proceed I will do so with a friend in the house and some shock proofing technigues…yikes. Thanks

  • Davie says:

    Hi Ginny, Joel is right about the shock part although if left for 8 hours or so they should have drained from any real danger. Just check for burnt and damaged to any part of the power suply, making sure it all looks, well as right as you hope it would look. The trouble with todays power suply the on and off is part of the mother board now so to power it up you have to plug it in to you board. Hope all goes well.

What do you think?