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Old 08-23-09, 01:57 PM   #73
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Default Re: Lapping FTW

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Originally Posted by AlphaWolf_HK View Post
Honestly I don't really understand why these processors aren't done like this at the factory. Obviously one of their goals in putting a heat spreader there is to increase the heat transfer efficiency. So why not increase it yet further?
A totally exposed core would be the best solution.
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Old 08-23-09, 04:57 PM   #74
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Default Re: Lapping FTW

Guys i might have a go at lapping my Ultra-120, Is the paper just ordinary sand paper? What's the best type of paper to buy & can it be bought from a ordinary hardware store?

Also is the lapping done by hand? How can you be sure your lapping it flat?

Sorry i these sound like dumb questions i just don't wanna mess it up.
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Old 08-24-09, 03:05 AM   #75
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Default Re: Lapping FTW

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Originally Posted by ATOJAR View Post
Guys i might have a go at lapping my Ultra-120, Is the paper just ordinary sand paper? What's the best type of paper to buy & can it be bought from a ordinary hardware store?
It's done with wet sandpaper(you put a drop of water on the surface you want to polish) and you should be able to get it from almost anywhere.

Quote:
Also is the lapping done by hand? How can you be sure your lapping it flat?
It's done by hand and you start by writing a big X on it starting from all of the corners as you then see if the heat spreader is concave or convex when you start papering away. You should always have an as flat as you can get surface when you start lapping because you need to tape your sandpaper to it(a glass surface is ideal).

Quote:
Sorry i these sound like dumb questions i just don't wanna mess it up.
You're not going to mess it up if you do enough research! And asking questions is what this forum is for.
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Old 08-24-09, 10:54 AM   #76
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Default Re: Lapping FTW

varying degree's of fine grit "wet & dry" paper (the gunmetal color one) not yellow sandpaper.
http://www.diy.com/diy/jsp/bq/nav.js...LAID=266956718
Link as example ,not necessarily fine enough for the final lap.


I would practice on something broken first.



Is it better to use a fresh area of paper for each rotation (if following this guys method)?
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Old 08-24-09, 01:06 PM   #77
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Default Re: Lapping FTW

Cheers guys.

That you tube vid made it look real simple, Now i know exactly what items i need to do it & how to do so im gonna have a go on my i7 CPU.

Would i do my ultra-120 cooler in exactly the same way? that's a lot bigger and could be more awkward.

EDIT: just found this ...

http://www.youtube.com/watch?v=YPWSMxnoDwk
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