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Heatsink replacement problem / heatsink detection

Discussion in 'General Electronics' started by Sambo, Jan 13, 2008.

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  1. Sambo

    Sambo Guest

    I have tried replacing my heatsink and fan many times now , but
    non if the new heatsinks were accepted by the motherboard.
    When I try to boot the power goes out after 1 or 2 seconds.
    The board is Asus A7V333 and the original heatsink is longer than
    all the new ones , raised allowing it to cover most of the plastic
    under which the sockets lever is attached. This raised area has
    2 slits that are almost covered by the original heatsink so I hoped
    there were light sensors there but that does not seam to be the case.
    The detection doesn't even involve the heatsink clamp being in place
    since just placing the heatsink on top of the CPU seams to make it work.

    Any other possibilities?

    I would like to close this up since besides knocking on the fan
    I have no other reason to keep it open.
    The Atholon 2100MHz has always been running at 1300 since I got it
    second hand because it was getting way too hot.
    But even then if in C&C on a hot summer day....
    Until I cleaned up the area of old heat transfer pad , old paste
    and newly applied Stars 700 heatsink compound that I got almost
    constant 60C (oops 52 now but I haven't played C&C )

    So best transfer with nothing on it.

    Cheers
     
  2. Charles

    Charles Guest


    I had a similar problem to this, I took it to the shop, they ended up
    replacing the MB. They tried various things, couldn't make it work .
    Couldn't tell why the heat sink would not maintain good contact.
     
  3. neon

    neon

    1,325
    0
    Oct 21, 2006
    heat of any source can be removed even hot air if it is flowing across a mass will cool it. some boards are so bad designed that the design of cooling it is just not there , I pefer the old reliable method i put a squirill cage 120v fan to move hot air out. it is not only the CPU that gets hot about the graphic memory card that gets very hot too. dc 12v fans do not have the torque to get started and stop 120 16w fans do not ever have that problem pluss it cools it after shut off. all my PC have that fetures installed and running 30 degrees thank you.
     
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