Question about Dell (S423) for Dimension 8100 (3F546) Motherboard

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Loud whirring noise when mains switched on but PC still off

When I switch the mains power on for my Dell 92000 system, the fans appear to start and they seem REALLY loud. That's it. There's nothing on the monitor, and the monitor light is in fact still orange (as it would be if the monitor was on but the PC switched off).

Sometimes, the fans seem to be getting faster and faster, and I switch the thing back off when it starts to sound like a plane starting up.

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  • Anonymous Aug 12, 2008

    same problem ,.,,
    exact same
    i think itss hibernation , i dunno how to get outta that ...

  • Lhito Sep 26, 2008

    Loud fan sound after switching on power...No display on monitor...first cleaning inside makes ok but within a few weeks it goes back again same issue.

    Please help

  • rfhcook Apr 11, 2009

    Well expressed, exactly the same problem.

    Mines an HP Pavillon.

    After several goes at pushing/holding the tower's on/off button I eventualyy get on properly.



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Most likely worn bearings in the fans.

If that's the case, replace the fan/s.

Posted on Jan 23, 2008


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When we first start the unit, it has gotten quite a loud whirring sound. We turn it off, then turn it back on and the noise virtually disappears - it's still there, but greatly diminished. I suspect...

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When I turn on my emachine computer, I now get a louder whirring noise. Is this dirt accumulation on the hard drive fan?

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Post any comments for further help, hope this answers your question. Feel free to leave positive feedback, and thank you for stopping by Fixya!

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