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Replaced the psu on a sony vaio pcv-54rg the board gets power due to light coming on, but will not start when i push the button to start the computer. put the old psu back in and the unit will start up just fine, when i hit the start switch. what is the deal with the new psu??why won't the new one work in it, it gets power, but the switch(on the front of the sony for on and off) doesn't seem to work with the new psu, but it does for the old one. any ideas on what may be wrong??

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  • Christopher Pyles
    Christopher Pyles May 11, 2010

    What models are the old and new psu. Is the new psu New as in New out of the box or new as in new to you?

  • Jay
    Jay May 11, 2010

    do you have the same exact kind of PSU installed? Does it even have the same pins and wattage? That could be causing your problem. Why do you have to replace the old PSU when you said that it powers on your computer?

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  • Master
  • 1,144 Answers

Not the correct psu not enough power being supplied or possibly to much power got a volt meter and do you know how to properly use on.

Posted on Oct 07, 2009

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