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  1. #1
    Member Garfield's Avatar
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    How much do you tighten the heatsink to the CPU?

    I was reading the directions on tightening and putting on teh heatsink and it was slightly confusing about when to stop screwing on the heatsink. Can somebody give me an idea of when is enough tightening?

  2. #2
    Member ThePunkGeek's Avatar
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    well am sure you will just know when its right
    when it takes force to move it you have it
    its your looking for a touque value i dunno
    good luck
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  3. #3
    Member Ottoman's Avatar
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    stop if u hear a cracking sound


    but seriously u should go in a in an X pattern evenly screwing them down... they should have springs on the bolts, those work best and safest I'd say
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  4. #4
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    Springs are a pile...those springs loose tension in just a week or so and temps will rise due to that...

    I use direct screws... I use a SHIM!!!!! and I tighten TILL I CANT NO MORE...Practically... and I tend to use a big screwdriver...

    But as Ottoman said... use an X pattern..

  5. #5
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    Re: How much do you tighten the heatsink to the CPU?

    Originally posted by Garfield
    I was reading the directions on tightening and putting on teh heatsink and it was slightly confusing about when to stop screwing on the heatsink. Can somebody give me an idea of when is enough tightening?
    with your hsf you turn the screws to the left just the oppisite of tightening I know it's wierd but that is how it works the springs are what applies the pressure not the screws just stop when you feel that you have good pressure I felt like if I kept tighting or loosening what ever you want to call it the screw would come out
    losen one side a little then loosen the other then keep going back and forth that way until you get the right amount of pressure

    highlander you are talking about a completely different type of hsf. the one we are talking about uses the tabs on the socket

  6. #6
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    If you want to get the right amout of pressure onto the heatsink, use thumbscrews to replace the default screws and screww until it is hard to move the heatsink. To maintain good contact you should pop your case open every now and again and tighten your screws as the torque pressure causes them to back out. I work for as a consultant for marquardt switches in Cazenovia NY, we had the same problem with the heatsink on our black and decker model 3 12 volt cordless drills. The thermal compound bettween the mosfet and heatsink caused the screw's backout torgue to be lowered to about 30Neuton M instead of the desired 100Neuton M... oh sh*t, im rambling, oh well, just try what I told ya and it should work fine. Good luck

  7. #7
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    well neither of you know what your even talking about ever hsf is different and it sounds like you don't have any experience with the swiftech mcxc 370

  8. #8
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    I have a waterblock swiftech MCW462 and a MCX462

    Those are my heatsinks!!

  9. #9
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    Originally posted by The Highlander
    I have a waterblock swiftech MCW462 and a MCX462

    Those are my heatsinks!!
    those are nice I have an mc 462 and a mcxc 370. cant go wrong with swiftech. I know what you mean by screws loosening but that does apply to the mcxc 370 completely different setups.
    by the way have you seen the new mcw 462u

  10. #10
    Member Garfield's Avatar
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    Hmmmm...so I just tighten the screws and when I feel some pressure I stop. Then, I shouldn't be able to move the heatsink? I'm still a little in teh fog about this

  11. #11
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    you don't tighten screw. you loosen and the spring puts pressure on heatsink & chip. when you tighten it compress spring

  12. #12
    Registered Fahrell's Avatar
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    DON'T do direct screw tightening... without springs ...!!!

    use the springs provided or at least rubber spacers between your cooler and the screw...

    I've crushed my mobo when tightening directly the waterblock...
    and I didn't apply much pressure...

    whatever you do, do it carefully...

  13. #13
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    Originally posted by Fahrell
    DON'T do direct screw tightening... without springs ...!!!

    use the springs provided or at least rubber spacers between your cooler and the screw...

    I've crushed my mobo when tightening directly the waterblock...
    and I didn't apply much pressure...

    whatever you do, do it carefully...
    for water cooling your temp suck. a hsf would do better than that

  14. #14
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    Till the day I break it.... jejeje.. I will be more careful now...
    but hey.. I dont have a crappy board... I have a KG7

    WOW like if it were much... you might say... its not much... but its better than average!!!

    I like abit!!!


    but I do tighten very hard...

    Well thanks

  15. #15
    Member Garfield's Avatar
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    To "tighten" my swiftech, you screw the screw counter clockwise, as the directions say. But, how do I know when is enough screwing?

  16. #16
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    whenever you can't move it anymore

  17. #17
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    if you see your swiftech instructions it will tell you to screw until it bottoms out.

    the springs will give the necessary tension to the CPU according to AMD specs...

    But... My springs never adjusted counterclockwise... so... idont know..

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  18. #18
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    as per instuctions

  19. #19
    Member Garfield's Avatar
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    Originally posted by res0r9lm
    whenever you can't move it anymore
    Really!? So, I just tighten it until...I can't!? Won't that might put too much pressure on the die and just the CPU as a whole? I didn't really understand the heatsink directions. When you counterclockwise the screw, does it put more or less tension on the spring and does it tighten or loosen? Thanks!

  20. #20
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    simply screw till you cant screw any more ;-)


    till its "finger-tight"...meaning dont screw as hard as you could like as with a pair of pliers, but simply till you cant turn anymore with your thumb and forefinger...if you go unterclockwise then the springs will loosen

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