Question about Dell Dimension 8400 PC Desktop

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Your Dell 8400

Did you ever get your dell fixed. I have the exact same problem where it wont start - fan full blast, screen off. no abcd lights on. I can only get it working by plug/unpluging it many times.

Please reply to spidelle@netzero.net

Edward

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  • Anonymous Nov 06, 2008

    Exactly the same problem, Dimension 8400 from September 2004.

    When it starts, all POST lights remain dark, have amber power light, and in several seconds the fan begins revving up like a plane taking off. If I press power for 5 seconds, that turns the PC off. The blue LED on MB stays lit as long as the PC is plugged in. I measured the power taken by the PC, and it increases up to 240W while the fan revved up, so something is taking plenty of power. However, nothing feels hot...

    I saw bulging capacitors on the MB (orange Nichicon, 5 x 1000 microfarad and 1 x 2200 microfarad - and replaced all of them). Checked the P/S for bad capacitors but all are visually OK. Hope this helps.

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If you have a power surge or surge protector, bypass them and connect it directly to the wall socket, check if the issue is the same

Posted on Feb 07, 2009

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The fans running full tilt indicate a NO POST condition, normally a motherboard failure

Posted on Jan 25, 2009

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