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okippiko

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okippiko

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August 13th, 2006 00:00

System will not start up

The system with the probleml is a Dell Dimension 2400, Celeron 2.4,512mb ram,onboard audio and video.
I trying to help somebody get this system to run.  He upgraded a case mounted fan and ddr ram.
There is no fan attached to the heatsink itself.  The fan that he changed was case mounted with a baffle leading down to the heatsink.
Since he has done these upgrades this system will not start.  No bios info displays or anything else on the screen.  The MB light,PB LED,HD LED and drive LEDS will come on.   The case mounted fan works.  Other than that this system show no activity.
I tried known good video card,hard drive and power supply.  I disconnected and reconnected drive ribbon cables and power cable.  I have reseated heatsink,cpu and memory.  I have uninstalled the modem to see if this was a problem device.  After all of this, this system still will not start up.
Any help will be appreciated.
 
  • shesagordie

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    Posted August 13th, 2006 00:00

    okippiko
     
    What is the reading of the diagnostic LEDs on the back panel?
     
     
    Try reinstalling the original memory and see if the system boots.
     
     
    Bev.
  • okippiko

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    Posted August 13th, 2006 13:00

    Hi Bev,

    There isn't any diagnostic lights on the back of the case.  Is this the back panel that you are referring to?  If not, where is it located?

    I already reseated each stick of memory one at a time in both slots.

    Thanks alot for your response, I appreciate it.

  • shesagordie

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    Posted August 13th, 2006 19:00

    okippiko

    Have you tried reinstalling the original memory, not the upgraded memory and see if the system boots?

    Yes, there are four small diagnostic LED's located on back I/O panel.

    What is the reading of the power button LED, green, blinking green, solid amber, blinking amber?

    Bev.

       

          

  • okippiko

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    Posted August 14th, 2006 21:00

    Hi Bev,

    You were right,  those lights are small.  Anyway I found them. A,B,C, are completly out and D is emitting yellow.  The power led on the front is solid green  Thanks again.

    Len

    Message Edited by okippiko on 08-14-200606:18 PM

  • okippiko

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    Posted August 14th, 2006 21:00

    Hi Bev,

    Yes, I did try this system with the original memory stick.

    I don't see any diagnostic leds .There are no leds located on the back of this case.

     

     

    Thanks again for your response

     

  • shesagordie

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    Posted August 14th, 2006 21:00


     
    okippiko
     
    The Dimension 2400, four diagnostic LEDS [lights] are located above the mouse and keyboard ports.    
     
     
    Bev.   
     
     
     
     
     
     
     
     
     
     
     
     

     
  • shesagordie

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    Posted August 14th, 2006 22:00

    okippiko
     
    Try removing all the PCI cards, the video card [if installed] and memory, disconnect the IDE and FD cables, check that the front panel cable is connected to motherboard, with nothing else connected to the case, except the power cable, then power the system on.
    Then if you do not get any beep codes or no LEDs in the back, it would appear that motherboard has died.
     
    If you get beeps and the LEDs light up, then you can reinstall the components, one at a time and reboot the system after each reinstalled device, until you can identify the internal device, causing the failed POST.  Starting with the drives, ie, hard drive,FD, CD/ROM, memory, then the keyboard and mouse, then to monitor and PCI cards.  Remember to disconnect power cord, before you reinstall or re-connect any component to your system.
     
    Bev.
  • okippiko

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    Posted August 16th, 2006 20:00

    Hi Bev,

    I tried it.  I think I'll just purchase another motherboard and try that.  Again, thanks alot for all of your input.  It is appreciated.

    Sincerely,

    Len

  • shesagordie

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    Posted August 16th, 2006 21:00