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Dell XPS 720 Diagnostic Lights and Fan

Discussion in 'Hardware' started by Smithbs2, Jul 31, 2012.

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  1. Smithbs2

    Smithbs2 Thread Starter

    Joined:
    Sep 15, 2010
    Messages:
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    I reset all of my ram slots, video card and sound cards tonight. I also removed my processor heat sink fan and cleaned it b/c it was full of dust. When I put it all back together my computer turned on fine. I went into bios to check some things and when I saved and exited bios my monitor went black and my processor fan went full blast and the lights 3 and 4 on the front of my tower light up. Now every time I try to start my computer it keeps just doing that. Fan full blast and 3 and 4 lit up. I can't figure out whats wrong.

    If anyone can help me with this, you will have my eternal gratitude and love.

    Thanks
     
  2. crjdriver

    crjdriver Moderator

    Joined:
    Jan 2, 2001
    Messages:
    37,955
    I believe those were btx type mb. They are very prone to failure and one of the indications of failure is the fan running at full speed.

    What was the original problem that caused you to reseat ram, video card, etc?
     
  3. Smithbs2

    Smithbs2 Thread Starter

    Joined:
    Sep 15, 2010
    Messages:
    11
    Well the only issue I have been having lately is the CPU running at 100%. I reseated everything just to make sure they were all seated good and I cleaned the heat sink/fan b/c it needed it.

    The odd thing is that last night, after trying to boot it up for a few times and getting the same results, (3 and 4 lights, fan on at full speed) It finally booted up. And it has booted up since. Fingers crossed for it booting up once I get home. But, I think it's time to start getting a new computer assembled lol =D.
     
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