Question about Dell (5P255) Motherboard

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Microprocessor hybrid cooling fan of dell latitude C640

Cooling fan is not working... but when I check the fan itself it is good and working.. what is the possible cause of this problem?

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  • ksolo101 Nov 24, 2007

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Anonymous

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Is the fan on the processor? if yes,get another processor of the same type...
If it doesn't work then, introduce a working fan of the same type and make sure is well connected...

Posted on Jan 03, 2008

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its an older lcd screen. so try to replace the screen or get a notebook cooler to cool it.

Jul 11, 2013 | Dell Latitude C640 Notebook

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Cooling fans dead. how to open keyboard.


http://support.dell.com/support/edocs/systems/latc640/sm_en/fan.htm#1000113
    1. Remove the hard drive.

    2. Remove the keyboard.

    3. Remove the display assembly.

    4. Remove the palm rest.

    5. Remove the microprocessor thermal cooling assembly.

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Dell latitude laptop-freezes after running for a few minutes/sometime on start-up/screen on but no response /fan stops running and nothing responds


Im assuming its a C64, these notebooks have overheating issues.

1. make sure the fan has room to breathe, and is clean of dust.
2 Dell Inspiron/Latitude/Precisiion fan control utility will help cool your processor ... http://www.diefer.de/i8kfan/index.html

Jun 04, 2009 | Dell Latitude C640 Notebook

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Hi

Both Dell Part numbers 18THT and 5W299 are 8X DVD-ROM Drive Modules. DPN 18THT is compatible with Latitude C series and DPN 5W299 is compatible with Latitude D series. The two drives have different and incompatible connectors.

Your Latitude C640 is a C Series Latitude. You can therefore not use DPN 5W299.

If you need a DVD drive module, get DPN 18THT or an alternative Latitude C series drive.

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Apr 25, 2008 | Dell Latitude C640 Notebook

1 Answer

Can I suggest a web site where I can purchase c640 dell laptops in bulk at good prices(not ebay please)?


your best bet is in the retail channel, where returns are a major issue. This time of year, is a good time. Otherwise, those parts go into secondary market, for S. America, etc.

Feb 25, 2008 | Dell Latitude C640 Notebook

1 Answer

Dell Latitude C640 Laptop


get to the main board of ur system there is a jumper near the battery .
change its position while power is off and get it back to its previous position. this way u will reset cmos to default.
if the computer starts hit delete to enter setup and load system defaults.save changes then exit.
ps: defected processor could be the cause

Nov 14, 2007 | Dell Latitude C640 Notebook

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