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Computer wont start

Tuns on for 2-3 seconds and shuts off

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  • curleybradsh Nov 07, 2008

    computer come on and stay for 2-3 sec and start over. Did change fan in unit

  • veronicadelv Mar 28, 2009

    My computer wont turn on.Dell Dimension 5100



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Need help. i have a dimention c521. when i push the power button in. the button turns yellow the fans go on and the yellow button shuts off and the fans to thank you mike

Posted on Mar 15, 2008

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This will happen because of Bad RAM, if the RAM of the system is not good the system will restarts continuesly

also the problem with SMPS (power supply unit)

Posted on Nov 28, 2007

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Get to the main board of ur system there is a jumper near the battery .
change its position while power is off and get it back to its previous position. this way u will reset cmos to default.
if the computer starts hit delete to enter setup and load system changes then exit.
check the power on pannel pins if they are in a good position too

Posted on Nov 14, 2007

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First of all you didnt mention how it gets shut down. So i can say 2 possible ways in which system gets shut down.

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