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    Help! After CPU replacement laptop won't boot

    Discussion in 'Dell' started by kokomonjo, Oct 24, 2008.

  1. kokomonjo

    kokomonjo Newbie

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    Hi all! I am having some trouble here. I just tried to upgrade my current processor in a Dell Inspiron 1520 from an Intel C2D T5250 to an Intel C2D T8300.After replacing the old CPU with the new I put my laptop back together and then press the power button. The three lights by the power button light up and the caps lock button in the middle of the three lights starts to flash then after a minute or two the computer shuts off. I thought it may have been that the CPU was DOA so I popped the old one back in there and got the same thing. I have the most up to date BOIS from Dell A09 as well does anyone have a clue as to what I need to do here? Thanks for your help!
     
    kokomonjo, Oct 24, 2008
    #1
  2. flipfire

    flipfire Moderately Boss

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    Take out the battery and AC power, hold the power button for 30 seconds to clear the settings.

    You could have tightened the heatsink too much..
     
    flipfire, Oct 24, 2008
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  3. kokomonjo

    kokomonjo Newbie

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    What happens if I tightened the heatsink too much? I tried removing the battery and AC power cord and pressing power button as per instructions but nothing happened.
     
    kokomonjo, Oct 24, 2008
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  4. nizzy1115

    nizzy1115 Notebook Prophet

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    What did you do with the thermal paste / pad that was on the gpu and processor?
     
    nizzy1115, Oct 25, 2008
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  5. kokomonjo

    kokomonjo Newbie

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    I put more paste on the processor after I replaced it... I am not sure what you are talking about as far as GPU goes.... But when I removed the heatsink I cleaned off the old paste with rubbing alcohol and then put some Arctic Silver on the new processor...
     
    kokomonjo, Oct 25, 2008
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  6. nizzy1115

    nizzy1115 Notebook Prophet

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    [​IMG]

    You can see both the cpu and gpu on the heatsink here in a picture from my website. Unless you dont have a gpu? The only reason i brought it up was because the gpu uses a thermal pad not thermal paste because the heatsink can not reach the gpu without the thickness of the thermal pad.

    Another thing you could try is reseating the memory (pulling it out and putting it back in.)
     
    nizzy1115, Oct 25, 2008
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  7. kokomonjo

    kokomonjo Newbie

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    Yes I have that... I left the thermal pad on the heatsink.... I will try to reseat the memory i did remove the one by the processor when replacing it but put it back...
     
    kokomonjo, Oct 25, 2008
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  8. flipfire

    flipfire Moderately Boss

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    Just keep trying.. its bound to work sooner or later.

    Make sure all connections are in.

    Double check the service manual if you missed something
     
    flipfire, Oct 25, 2008
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  9. kokomonjo

    kokomonjo Newbie

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    Thank you soo much! I just reseated my memory and the laptop booted right up! I didn't even think about that since I didn't really mess with it...
     
    kokomonjo, Oct 25, 2008
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  10. nizzy1115

    nizzy1115 Notebook Prophet

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    No problem, its my job :cool:
     
    nizzy1115, Oct 25, 2008
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