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  1. Member
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    now this is the first time im going to install a cpu, and i know your supposed to rub the themal compound on the heat sink right, but not too much right...can some one point me to a how to guide or something, im installing a prntium 4 3.0 ghc cpu and heat sink, also...when im switching cpus, is there any more configurations i have to go through, or can i just shut down, switch, and start up again..and everythting will be allright...holla back...
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  2. DVD Ninja budz's Avatar
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    Funny that I was just surfing the net last night on how to install a CPU & HEATSINK FAN. I found some guides with pics. I'll be doing my first CPU installation soon. I've ordered my mobo combos with the CPU & HEATSINK assembled but the time has come for me to do learn how to do it by myself.
    Check these guides I found off GOOGLE:

    http://www.waterwheel.com/Guides/how_to/cpu/CPU.htm

    http://www.build-your-own-cheap-computer.com/computer-processor.html

    http://reviews.cnet.com/4520-6603_7-5021200-2.html?legacy=cnet

    http://www.pctechguide.com/tutorials/Pentium4.htm

    good luck!!!!

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    thanks man
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    one last question thats bothering me, do i put the thermal compound on the bottom of the heatsink (i have a p4 heat sink and yes it does have that sticker thing on the bottom of it) or do i put a little on top in the middle of the actuaql cpu.....?
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  5. Originally Posted by SIRCOOKS
    one last question thats bothering me, do i put the thermal compound on the bottom of the heatsink (i have a p4 heat sink and yes it does have that sticker thing on the bottom of it) or do i put a little on top in the middle of the actuaql cpu.....?
    I put mine on the CPU and I also remove all stickers from heat sinks and fans, unless of course they are thermal pads.
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    what does this thermal pad look like? this is a serious question, id rather ask alot of stupid questins to be sure the first time, in stead of reinvesting another 200$ + for aNOTHER CPU
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  7. thermal pads are usualy grey or silver and are usually pre-installed
    thermal tape is like 2 sided tape and is thicker than normal tape, but is thinner than that spungy 3M 2 sided tape

    couldn't find any picts, just do a search and I bet you find something
    tgpo famous MAC commercial, You be the judge?
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    thanks man, will do
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  9. Banned
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    If it has a thickish, and I mean 1/32 inch thick, tape across the base, it is a thermal adhesive, designed to melt down, under the CPU's normal, or maybe higher, temp, to extrude till you have a minimal amount left.

    Fills in the little "hills and valleys" of 2 "perfectly flat" surfaces. Of course, they never are.

    I prefer Arctic Silver paste, about 8 bucks for an injector that will probably do a hundred CPUs. Grain of rice sized glob is more than enough. Spread it, if you wish, press the heatsink onto the CPU, twist a few times to spread it evenly, and clamp. If you have an AMD, it is wise to lift it, check to see that you did not use too much and shorted the L1, L2, laser cut bridges. If you have, just clean the excess and finish the install.

    The only other thing you have to know is your CPU's designed clock speed and BUSS speed, either 100 or 133 mhz. Some boards have a trio or 4 jumpers to select. Set the jumpers to either 100 or 133, and the multiplier should takecare of itself. Most are locked. You cannot exceed the multiplier rating the mfg found it would run well at.

    Cheers,

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  10. Member adam's Avatar
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    Something I never understood.... lapping. I understand the idea is to sand the surface down to make it smoother and flatter to increase conductivity. But are you trying to sand out all those little grooves? I thought the grooves were there for a purpose, so that the conducting agent could fill in the gaps, giving you a better surface then just a flat one with the paste/grease/compound spread on it. Or are the grooves only for paste? Maybe a flat surface is better for grease or compound but they just want to make a universal heatsink?

    If the grooves are supposed to be there always, then why aren't heatsinks just really smooth and shiny to begin with? They usually come pretty well packaged so why don't they just give them a good buffing during manufacturing?
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    Adam,

    You "lap" something to try to make it truly smooth and flat.

    All CPUs are already lapped, by machinery that is developed by a company that can get just "so" close to flat that to come closed would drive up the production cost.

    All ICs are created by "vapor deposition", the silicon has the microgrooves etched into it, they "vapor deposit", ie., evaporate, aluminum to a "smoke", and it coats the entire wafer. Then they lap the wafer to "sand" down all the aluminum that is not in the nanometer traces. This is done with a slurry and a lapping wheel to try their damnedest to keep everything "flat".

    This stuff "scratches" the wafer, and those scratches are what the heat transfer pastes are designed to fill.

    Imagine, if you will, a phonograph record, or even a bolt. Place a flat piece of material on a bolt and look at all that space where the piece doesn't touch the v grooves of the bolt, the root of the threads. HEAT, and no contact with the heatsink. Tiny contact with the crest of the threads, non.e elsewhere, all the rest producing heat, and no dissipation.

    And, the new Intels are supposed to produce in excess of 100 watts of heat to dissipate.

    They have said the watt density of a CPU is approachingor exceeding, that of a nuclear reactor. ie, hotter, per cm2 than a a nuclear reactor's core.

    That is damned hot.

    Cheers,

    George.
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  12. Member adam's Avatar
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    Do you mean all heatsinks are already lapped? Or did you really mean the CPU?

    So all these guides on lapping your heatsink are just to smooth it out more than the manufacturer is willing to bother with? That's basically what I figured.
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    Adam,

    Sorry to be a "post whore", upping by 1.

    Tom's Hardware, for one, did at one time suggest using a flat lap to "smooth" your heatsink for better contact.

    We are at the point, now, that it is not enough. They put huge copper slugs into the base of aluminum sinks, piss poorly, I might add, as I have a few and they sre truly not well made. You have a copper slug that draws heat well, it has to transmit the hwet to an aluminum extrusion, and the interface to the aluminum is piss poor. BAD. A hot piece of copper, with no place to go, heatwise.

    Solid copper would be better, but heavier and more expensive.
    Enough for tonight.

    heers,

    George.
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    Adam,

    I, personally, know of no heat sink mfg who laps their product. Those I have seen, read about, are either simple aluminum extrusions, or aluminum extrusions into which they mill a recess into the bottom and insert a copper slug..

    Neither the extrusion, in the prior instance, nor the "slug" in the second instance, is lapped.. Hell, the ones I have bought are already so oxidized they already have a built in resistance.

    The "Antique Copper" look, reddish orange rather than the orangeish fresh cut copper look. The oxidized finish is an inhibitor to heat trandfer, as well as to elictrical flow.;.

    Use heat transfer paste. Fill in the nooks and crannies.

    Cheers,

    George
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