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    Dell Latitude motherboard replacement

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by japper, Oct 20, 2011.

  1. japper

    japper Newbie

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    I am attempting to fix a laptop for a friend which has a short on the motherboard
    (tag = DS/N CN-04518-48155-246-5958) where the power brick is
    loaded down when it is plugged into the laptop.

    I removed the motherboard and un-soldered the power connector and measured
    the resistance between the +20v power pin and ground and it
    reads ~ 2 ohms.
    Not having a schematic for this circuit, I am not sure how this connected and
    found it difficult to follow the artwork traces on t he board due to the solder mask.

    I did notice that the board appears to be cracked as it flexes when a little bit
    of pressure is placed under the board where the power connector is located.

    I am not sure if there are any internal artwork layers containing power in that
    section of the board.
    I would like to fix this if possible if anyone has a schematic or
    artwork info for this board
    or any other typical areas that fail on this board that cause this symptom.

    Otherwise, I may just need to replace the motherboard. I see a couple of these on
    e-bay for a reasonable
    amount but the codes on the tag don't totally match up. Is part of the
    number on the tag, a unique number
    like serial number or lot code info?

    One fellow has a mother board with the following number on the tag:
    DS/N CN - 04P518-48155-23M-0163
    and mine is:
    DS/N CN-04518-48155-246-5958

    Are these both drop in replacements?

    Any other useful information about swapping the motherboard in this unit
    is also appreciated.

    thanks
     

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    japper, Oct 20, 2011
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  2. Tsunade_Hime

    Tsunade_Hime such bacon. wow

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    As long as it is the same part number. The S/N you posted is Dell's PPID, aka the serialized part.
     
    Tsunade_Hime, Oct 20, 2011
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  3. japper

    japper Newbie

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    Thanks

    So can I tell if the mother board that I want to buy is the correct one based off of that information in Dell's PPID? If so, which digits need to match up for it to be a drop in replacement?

    thanks again
     
    japper, Oct 20, 2011
    #3
  4. Tsunade_Hime

    Tsunade_Hime such bacon. wow

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    No PPID is a way of tracking the serial number of the motherboard. It's just a 20-23 digit number. All you need is the correct DP/N
     
    Tsunade_Hime, Oct 20, 2011
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  5. japper

    japper Newbie

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    Thanks-

    Where is the DP/N number located?

    Isn't the Dell part number of this item: 04518-48155 if the tag number is: DS/N CN-04518-48155-246-5958

    ???

    Please advise- I would like to get this part on order if it is the correct one.

    thank you
     
    japper, Oct 20, 2011
    #5