Power supply issues desktop studio 540 hi the issue seems that your power suppli is dead and you need to change one i know a store sells dell studio 540 350w power supply 0g848g ps 6351 2 it only need 50usd that may help you.
Dell studio desktop 540 power supply.
I ve unplugged all the cords and held the power button on for 30sec still won t turn on.
I had replaced the power supply once before so i thought that was the cause.
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I have a dell studio 540 desktop running windows 7.
Recently the entire system shut down while i was using it.
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It won t turn on.
Make offer dell studio 540 540s 300w atx power supply unit xw598 0xw598 dps 300ab 24 a new pc power supply upgrade for dell studio slim 540s slimline sff computer 29 99.
However i bought a replacement power supply diablotek which was identical to the first power supply but after that was installed it was still dead.