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How to Lap A DualCore?
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Fresh-Faced Recruit
Join Date: Jan 2007
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Is lapping a dual core chip any different then lapping a single core chip?
Also has any lapped their Mac Pro yet? what are the results? How hard is it to get to the chips? Thanks
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Mac Pro. 2.6GHz, 3 Gb Ram, 500/250/250Gb HdD, Radeon 1900Xt, 23" HD Display
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Fresh-Faced Recruit
Join Date: Jan 2007
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To answer my own question after a little research I think I can just lap the IHS like anyother processor. I am still not sure though and any feedback would be great.
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Mac Pro. 2.6GHz, 3 Gb Ram, 500/250/250Gb HdD, Radeon 1900Xt, 23" HD Display
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Junior Member
Join Date: Sep 2006
Location: Rexburg, ID, USA
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yes is the same assuming that it has a metal plate over it, if its a bare core you better know exactly what you are doing.
However, does anyone even know if lapping even does anything on these modern chips? I read a thing where someone used toothpast instead of thermal paste and he has a slight temp decrease, and then another guy did the same with peanut butter which has thrown everything I knew about cooling out the window.
In short weigh the benefiets with the risk before you do it.
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Mac Elite
Join Date: Sep 2005
Location: Los Angeles, California
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Linkinus is king.
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Baninated
Join Date: Dec 2006
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Sand down, for better cooling.
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Mac Elite
Join Date: Sep 2005
Location: Los Angeles, California
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Linkinus is king.
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Forum Regular
Join Date: Jun 2006
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Fresh-Faced Recruit
Join Date: Jan 2007
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Idrumstick, AS for the toothpaste and peanutbutter I have no idea. But to answer if lapping modern chips does anything, well not really. While it will result in a minimal decrease in the chips temp, I do it more for the bragging rights then for any real performance increase.
I am waiting until I lap my Radeon x1900xt to see if I get any major performence increase there.
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Mac Pro. 2.6GHz, 3 Gb Ram, 500/250/250Gb HdD, Radeon 1900Xt, 23" HD Display
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Moderator  Join Date: May 2001
Location: Hilbert space
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Online
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The same way you do it with a regular cpu. However, it's pointless, thermal paste (e. g. Arctic Silver) is and should be used to bridge the tiny gaps between cpu and cooler.
I've never heard that toothpaste is a better heat conductor than thermal paste and I definitely would not recommend it!
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I don't suffer from insanity, I enjoy every minute of it.
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Fresh-Faced Recruit
Join Date: Jan 2007
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Actually Oreo to disagree slightly, lapping is not pointless. Straight contact between the chip and the heatsink provide better heat transfer then with thermal paste filling in microscopic pits between the two surfaces. Agian the gains are small but a better lapped chip requires less t.paste and will run cooler.
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Mac Pro. 2.6GHz, 3 Gb Ram, 500/250/250Gb HdD, Radeon 1900Xt, 23" HD Display
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