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How long did it take you to lap your HS?

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bohansen

bohansen

Member
​
Joined
Dec 27, 2004
Well i'm just wondering how long it took most of you to lap your HS.


I'm doing my xp-120 now and i have been lapping it with the 400 grit for like 3 hours now! and i STILL have aluminum in the middle -_- must have been a really concave HS i got. And it doenst seem like much copper is coming off anymore. maybe i wore out the sandpaper :shrug: oh well guess its gonna take me all day to do it
 
For heatsinks that have a coating on them (like the XP 120) its usually easier to start with a lower number sand paper....say 220. It makes the initial effort so much easier.
 
i put about 2-3 hours into any HSF or water block that i lap


ps: with my xp-120, i had to drop all the way down to 100 grit to get all the nickel plating off - 400 just won't cut it to take off the bulk of the plating - drop down to 220 or something even coarser than that (don't worry, you'll take the scratches out later)
 
ya i went down to checkers and got some 220grit. been doing that for like half a hour and still some silver :p oh well gues i gotta keep going
 
I started watching Harry Potter DVD when I started my waterblock on 600. I was up to 1500 and near mirror like finish when the movie was over.

A good smooth surface takes a lot of time. ANd paitence, forcing the block onto the paper would only result in rounded edge and poor quality spot in the middle. I just held the block loosely by the side and slid it around the sandpaper, adding water as needed.
 
I gave up after 45 mins seeing Im only making the copper stand out more on my Al - Cu Zalman CNPS 7000. Had anyone same problems? I mean, it colud be that I just wasnt doing it right although it seemed okay to me. Also, its kind hard to lap these Zalmans -> they tend to roll quickly (hard to realy grip' em!)


Cheers
 
gofra said:
I gave up after 45 mins seeing Im only making the copper stand out more on my Al - Cu Zalman CNPS 7000. Had anyone same problems? I mean, it colud be that I just wasnt doing it right although it seemed okay to me. Also, its kind hard to lap these Zalmans -> they tend to roll quickly (hard to realy grip' em!)


Cheers
Click to expand...


I have a 7000A-Cu, not AlCu, and i didn't find it hard to use at all. I held it like so:

My right thumb was on the rear-side of the sink (the fan was removed). You know the middle part where the fan bracket hovers over? I had my thumb there, and my index and middle on the front side of the sink. I didn't rotate it 90° cause i've heard better stories of using only 1 direction.
 
I spent around 3 hours on my XP-120 using 220 -> 400 -> 600 -> 1000 -> 1500 -> 2000. Most of the time was spent with the 220 (probably 2 hours).

CJ
 
Sneaky said:
i put about 2-3 hours into any HSF or water block that i lap


ps: with my xp-120, i had to drop all the way down to 100 grit to get all the nickel plating off - 400 just won't cut it to take off the bulk of the plating - drop down to 220 or something even coarser than that (don't worry, you'll take the scratches out later)
Click to expand...


is there a noticable performance boost?
 
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