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Dell Lattitude C800 powers on for a few seconds, then turns off.

Discussion in 'General Hardware' started by JC316, Nov 10, 2006.

  1. JC316

    JC316 Knows what makes you tick

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    A friend gave me this, so I have no idea what the specs are. Basicly it didn't have a harddrive, so I figured this was the reason it wouldn't power up, I got a new one and I am still having the same problem.

    I press the power button and the processor kicks on, followed by the harddrive and the CD drive, then it just shuts off. I never get a display or anything. One of the ram modules had a loose heat spreader, so I removed it and still no go. I cant find a Cmos to reset, so I am kinda stumped. Does anyone know what could be wrong?

    I think it's a pentium 3 800MHZ, I know it has the radeon mobility chip.
  2. ktr

    ktr

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    overheating?

    try taking out the battery, wait 10-15min and plug it back in.

    cant really screw up the bios on a laptop.

    you may have to pull the laptop apart to see if there is no soldier defects are bad caps.
  3. JC316

    JC316 Knows what makes you tick

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    I have it apart. How would I find a bad cap? It's really quite simplistic on the inside. It can't be overheating since it has mostly passive heating, just a heatsink with a heatpipe that goes over to the fan. The previous owner has messed with it, so he could have screwed something up, I just have to find out what.
  4. Pinchy New Member

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    sounds like something is dead on it
  5. ktr

    ktr

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    usually bad caps are blacken around.
  6. JC316

    JC316 Knows what makes you tick

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    I am thinking it's either the RAM, or something that posts before the ram. I removed the RAM modules and it does the exact same thing. The previous owner claimed that to my friend that it was a government laptop and he had to disable it, hence no harddrive. Persoanlly I think the guy is a complete computer moron, since he messed up my friends laptop as well.

    I have found several screws missing on the inside, mostly around the video card, could these be grounding points that need screws to make it work?
  7. JC316

    JC316 Knows what makes you tick

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    Well, I have searched other forums and found out that it's a motherboard defect.
  8. Pinchy New Member

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    damn...lucky its fairly old

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