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Want to Find DC Power Connections on Compaq C700 Laptop

I have a Compaq C700 laptop that overheats. The OS I'm running takes over the control of the fan from BIOS.  The fan just cycles on and off, turning on at 100% capacity for a few seconds once every minute or two. 
This is not enough cooling for the processor and it is getting burning hot... hot enough to cause logic faults and make the computer crash.
I need to locate a DC power bus/connection that is live when the computer's power is turned on inside the machine, but that goes dead when the computer is turned off.  For instance, a USB port, the motherboard's DC supply, or the DC supply of the LCD would all work.  
Can anyone show me where one of these points would be that I can use to hard-wire my fan to, so the fan runs all the time the computer is on?  
Thank you,

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  • seansullivan Jan 02, 2009

    Well, I appreciate the post, but there is absolutely no information here at all.  

    Anyone can assemble links to corporate websites for various companies like this person did.  I could have done that in less than 30 seconds. 

    This is an inappropriate answer to a technical question by someone with no technical experience.  How can I tell?  They give links to drivers, as if drivers can solve a hardware question.  Weak.

    I solved my own problem by soldering the fan to the USB's VCC and GND pins so it comes on whenever the laptop is powered up.  

    Get some real experts on here if you want to have a successful site.

  • pontelemon
    pontelemon May 11, 2010

    Is your heatsink clean?


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