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Thread: Lapping heat sinks




  1. #1

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    Have any of you lapped a heatsink and if yes, how? I did this to a Zalman passive chipset cooler for my north bridge and it worked pretty good, deffinately keeps the mobo nice and cool. I was just wondering if i did it right. I used about 5 different grains of sandpaper and lots of water and some liquid detergent to keep things slippery but im not sure if there is a "real" way to do it. Any thoughts?

  2. #2
    Join Date
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    I've gone too far and need to move on!

  3. #3

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    Yep, thats pretty much the same thing i did. What should i use to test the temps? Its a Soyo Dragon Plus! motherboard so i am using the software that can be downloaded at the soyo site, but is there a better program than this?

  4. #4
    Join Date
    Dec 2002
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    I'm not familiar with the soyo software, but you can try mobo monitor 5 (mbm5)

    http://mbm.livewiredev.com/

    the best way to monitor your temps is to get a thermal probe with an LCD display, that will be the most accurate
    I've gone too far and need to move on!

  5. #5
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    There won't be anything to compare the temps to since no reading was taken before the lapping. Just like benchmarks, a before and after are needed to tell if a change happened. So stick to the same program for this time. And make sure not to make any adjustments with it.
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  6. #6
    Join Date
    Mar 2003
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    as said in many posts from other forums, is that most mobo temp monitor divice will be off a few degrees/

    u should try to run benchmarks before the lapping to see how ur score is. and thne lap it and chekc ur benchmarks agian

    what i do is, go ovclock to the max until i get 60C degrees on my nexus thermal monitor, then, i see how much more i can do with my lapped heatsink

    just my 2
    :2cents:
    My new gaming rig..

    [size=1.28]asus a78nx-deluxe
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  7. #7

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    Yeah, i wish i took readings beforehand. Oh well. The problem with testing the before and after with the Zalman Passive Chipset cooler is that once its on, its on. You cant unfasten the little plastic pegs afterwards. I was pretty upset when i found this out but it has kept my computer running at pretty normal temps since, so i guess its ok.

  8. #8
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    Mar 2003
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    Quote Originally Posted by mpetrie
    Yeah, i wish i took readings beforehand. Oh well. The problem with testing the before and after with the Zalman Passive Chipset cooler is that once its on, its on. You cant unfasten the little plastic pegs afterwards. I was pretty upset when i found this out but it has kept my computer running at pretty normal temps since, so i guess its ok.
    if u ar talking about the NB heatsink, then i dont see the point of lapping. Most stock ones wilil work pretty well already. exspielly the ones with built in fan.
    My new gaming rig..

    [size=1.28]asus a78nx-deluxe
    2x256mb pc 3200 ddr 400.(with cooling)
    athlon Xp 2500+ ( at 200x10=2000mhz .)
    seagate 80gb 8mb SATA
    Tt vlocano 7+ cpu cooling
    Clear case from HK.
    Leaktek fx5600 128mb
    enermax 350w PSU
    wireless internet setup[/size]


    (game/ftp server) windows xp pro, duron 1.4ghz, 256mb pc 2100 2x40gb Hd, radeon 9200se chieftec dragon
    canada price watch :)

  9. #9
    Join Date
    Aug 2003
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    Actually, many people do lap the NB, because often times it isn't flat at all and doesn't make good contact.

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  10. #10
    Join Date
    Mar 2003
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    268

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    i wanted to see if my NB was flat. but cant cause it seems like the asus a7n8x heatsink is attached with adhisive stuff.
    My new gaming rig..

    [size=1.28]asus a78nx-deluxe
    2x256mb pc 3200 ddr 400.(with cooling)
    athlon Xp 2500+ ( at 200x10=2000mhz .)
    seagate 80gb 8mb SATA
    Tt vlocano 7+ cpu cooling
    Clear case from HK.
    Leaktek fx5600 128mb
    enermax 350w PSU
    wireless internet setup[/size]


    (game/ftp server) windows xp pro, duron 1.4ghz, 256mb pc 2100 2x40gb Hd, radeon 9200se chieftec dragon
    canada price watch :)

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