Question about Gateway Bestec ATX-300-12EB3 305w Power Supply (ATX30012EB3) Power Supply

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No power how do I check or diagnose the power supply? Thank You

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  • Gateway Master
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Test your PSU or replace it if your power supply units fan is not working your PSU is faulty
hope this helps also

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they are probably old and faulty a computer needs its connections to continue its cycle and have an end so any faulty leads will end up with a computer error

hope this helps

Posted on Apr 05, 2011

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Posted on Jan 02, 2017

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Hello,

There are only two ways this can go for you.

One- you need a new power supply

OR

Two, you need a new mother board

You can verify the power supply by checking it on another machine

If the power suppy is good

And you do not hear the bios beep- then you are looking at a new motherboard- I would double check the powersupply first- most stores that sell them will let you check before you buy a new powersupply.

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Power supply


Hello enirehtac

HERE is a link to HP's instructions for trouble-shooting power supply-related issues.

Please, follow the steps outlined there and post back here w/ the results, your observations, and any comments or questions you might have.

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Thank you
BJ @:)

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4) The power supply itself has died (Is there a lot of dust covering it?)
See if you can isolate the failure by working down the list.
Hope Ya Fix it!

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