Question about HP Compaq Presario SR1720NX (EL435AA) PC Desktop

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Compaq desktop - problem started with blurry monitor, then after a reboot I get nothing on the screen. Plugged monitor into different PC and it displays fine. Appears as though system doesn't post - no beeps, no bios startup...nothing. Processor cooling fan runs at high speed constantly. Pulled RAM and started up - still nothing on screen. Replaced motherboard - same issue still exists. Any ideas?

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  • jeffjepp Dec 03, 2008

    Replaced power supply - still same issue. Bad processor?

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The only thing left that i can think of is your power supply not giving enough power for the system. Try to unplug all unused drives ( keep the c drive for start up ) remove any sound cards or network cards and then reboot. If it boots up then you definitely need a ps.

Posted on Dec 02, 2008

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It seems to e that your SMPS power supply inside the cabinet having some problem..try to replace it...

Posted on Dec 02, 2008

  • Sibananda Jena
    Sibananda Jena Dec 03, 2008

    YES U HAVE PROBLEM WITH CPU..

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