Question about Sony VAIO PCV-RX380DS PC Desktop

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No power to my Sony Vaio RX380ds. Already replaced power supply.

Computer is not getting any power. Power cords test okay, and I've replaced the power supply with a brand new official Sony power supply replacement. Still no power.

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  • Dan rogers
    Dan rogers May 11, 2010

    Sounds like your motherboard needs to be replaced. But before we go that far is the power button plugged into the motherboard? What happened when the computer stopped working? (power outage, elecrical storm, anything)

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  • 275 Answers

Disconnect the power adoptor and remove the battery and hold down the power button for 10sec and than connect everything back again and that should work

Posted on Feb 20, 2009

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I have a Sony Vaio PCV-RX755 desktop computer and I think I need to replace the power supply. It shut down normally last night, but would not turn on this morning...no power at all. I checked all the...


I can just provide you the link where you can check the prices and the model itself. upgrading the power supply you can actually do that. specialy when you are not going to load hardware that has heavier power requirements then that's the time you need to upgrade the PS. Don't forget to get the model of the PS that you have. You can also visit any local computer shop. they can help you with this.

* http://product.pelltechnology.com/Sony_Vaio_PCVRX755_Power_Supply_Unit.asp

*http://www.impactcomputers.com/1-468-601-14.html

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The computer seems to get no power.


unplug the power cord from the power supply on the computer, wait 2 min. plug back in and hit the power button...if the computer does not turn on, then the power supply has a short in it or a bad fuse.....you would have to either replace the power supply or the fuse inside the power supply...i would just get a new power supply....

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If there are on LED lights on in the front panel then either the power cord is faulty or the switch mode power supply is faulty.
Try a different power cord to determine if it is faulty.
Can you smell a burnt electrical smell from the fan grill at the switch mode power supply?
The only way to test if the switch mode power supply is to remove it from the desktop computer and take it to your friendly computer shop to get it tested.
If you do have electronic knowledge I would advise you not to attempt to test and try to repair this power supply.
If the switch mode power supply is faulty, then replace the switch mode power supply with another unit with the same or more wattage.

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try to replace power supply if no result you going need a new motherboard sorry thanks and good luck

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I would suggest trying to replace the power supply. If that does not fix the issue, i would need to hear more about the computer.

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Had the same problem after the electric went out due to a storm. When the electric came back on the computer wouldn't turn on. There was a light flashing on the Power Supply and on the mother board. I disconnected the large white Power connector from the motherboard, waited 15 seconds and plugged the connector back in, the light came on solid, press the on/off switch and the computer booted up and continued to work fine.

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tpically yes you can locate the number on your old power supply that represent the type and output and order a replacement at places like this link http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Description=power+supply
or perhaps if there is a computer repair place close, sometimes they have used ones from computers that has died

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