Saturday, April 4, 2009

How to switch on an ATX power supply without a motherboard?

This is a much needed answer for the people who are dealing with computer hardware. It is always good to know how to turn on a power supply unit (PSU) without the help of a motherboard when it comes to troubleshooting.
It’s pretty simple. The following picture shows a 20pin ATX connector.

What you have to do is short circuit the 14th (Green) and 15th (Black) pins using a wire as follows.





In 24 pin connector you can short circuit the 16th (Green) and 17th (Black) pins to turn on.
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8 comments:

  1. DeepsApril 5, 2009 at 9:01 PM

    welcome to the blogsphere!

    nice article!!! hope many things will come in the future

    ReplyDelete
  2. Isuru UdanaApril 5, 2009 at 11:08 PM

    thanks deeps!

    ReplyDelete
  3. AnonymousApril 13, 2009 at 12:14 AM

    Simple and really useful one. I've many used ATX power supplies which can now be used to power my always-on circuits.
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    ReplyDelete
  4. Isuru UdanaApril 13, 2009 at 1:05 AM

    @malshan I'm a regular visitor of your Malshan's Linux Blog

    ReplyDelete
  5. RickMay 27, 2009 at 2:33 AM

    Very good article. Easy to understand and my computer thanks you.

    ReplyDelete
  6. AnonymousSeptember 25, 2010 at 10:11 AM

    I am glad on your nice article. I just got some nice information about ATX power supplies from your blog so thanks for sharing that information.
    power supply

    ReplyDelete
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