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Good Lapping Guide?

post #1 of 9
Thread Starter 
Does anyone know the best guide on how to LAP?

I want to LAP a Big typhoon. I have NEVER done this before.

is it bad if I do it wrong? is it easy to do?
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post #2 of 9
Do a search for lapping dude, there are heaps of threads for it. It really is the best bang for your buck in reduing temps; and so, so easy about 1/2 hr on a piece of glass (has to be a real flat surface) with at least 3 different grades of sandpaper (wet & dry is best), last grade should be AT LEAST 1200 grade, preferrably 1500-2000.
Black Knight
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Black Knight
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post #3 of 9
Here is Some tips.
-take some glass and put it on a flat surface.
- Place your first grit of sand paper on top. (you start with low grit and finish high)
- Put water on your sand paper.
- Place the block on the sandpaper and proceed to sand in circles.
-sand for about 10 minutes or untill you can't feel any friction.
-repeat with a new grit of sand paper.

Thats really all there is to lapping.
TheGibson
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TheGibson
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post #4 of 9
Thread Starter 
I know there are a lot of threads about it but i want pictures of step by step.


is it a pretty easy thing though? I means whats the odds of messing it up?



also, do I just LAPP the bottom of the Big Typhoon? Or the top of the CPU as well?
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Logitech G7 
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Logitech G7 
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post #5 of 9
http://www.overclock.net/faqs/15897-...-p4s-a64s.html
This is a good guide (it's for IHS but can also be used for heatsinks). I plan to lap my old XP-120 this weekend and see if I can get as good temps. as with my BT.
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Magicbox
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post #6 of 9
why does this help so much?
    
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post #7 of 9
The more precise the surface is the better the contact, thus the better the thermal transfer.
    
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post #8 of 9
I lapped my ihs and my BT last night.

I havent noticed a huge reduction in temp, but I have noticed that my cpu cools a lot quicker after being at load. (may have to reapply the as5....because of the shiny surfaces they were slipping against each other when I was mounting the BT...not sure how well covered the core is)

I followed the guide that was linked to above for lapping the ihs....came up pretty well.....I was surprised at how curved the surface of the ihs was......the edges had worn to copper long before the centre did but now it seems to be all nice, flat and shiny.

the BT was so easy to lap.....because of the design of it's heat pipes you can place your hand on top of the base and keep it nice and flat to the sandpaper....they say with hsf to go back and forth rather than circles to prevent uneven wearing....this wasnt a problem with the BT...it was just like lapping my ihs...just take it slowly.

EDIT: I'm also going to mod my BT using the copper RAM sinks as shown in here
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post #9 of 9
it makes it better cooling solution as when lapping you smooth the sirface, when smooth and you apply stuff it has less air gaps and air gaps = heat sindulaot.r also better ocntact so heat can travel away easier and faster
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