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Need Help lapping HS
- Thread starter OcLinNoob
- Start date
- Joined
- Jul 27, 2003
- Location
- New York, New York
Ok, you need sandpaper, a flat surface and water. If you have a realyl bad heatsink base u need sandpaper grits of 400, 600, 800, 1000, 1500 and 2000. If it isnt that bad you dont need the 400 grit.
You should sand in this order 400-600-800-1000-1500-2000. Omit the 400 if ur not using it.
To lap:
get a flat surface liek a piece of glass or something. Wet sand paper and put it on the surface. Than take ur heatsink and rub it on snadpaper in gentel cirular motions. After about 5 turns rotate it 90 defrees. After you do about 10 rotations move on to your next piece of sandpaper. Keep doing this until you used all the sandpaper in the order above. When your done use 90% or stronger isopryl alchohol to clean off heatsink base of whatever is left.
You have now lapped a heatink. You should be able to see yourself in it now.
You should sand in this order 400-600-800-1000-1500-2000. Omit the 400 if ur not using it.
To lap:
get a flat surface liek a piece of glass or something. Wet sand paper and put it on the surface. Than take ur heatsink and rub it on snadpaper in gentel cirular motions. After about 5 turns rotate it 90 defrees. After you do about 10 rotations move on to your next piece of sandpaper. Keep doing this until you used all the sandpaper in the order above. When your done use 90% or stronger isopryl alchohol to clean off heatsink base of whatever is left.
You have now lapped a heatink. You should be able to see yourself in it now.
Constantinos if you are going to use that many sandpapers and rotate the HS 10times and each rotation having 5circular motions isnt the HS base going to be gone?
OcLinNoob: For better results use a black permanent marker and mark the whole HS base then lap it. until all the black ink has come off then u know its flat. normally a 600 grit is fine to start off with and its not neccessary to go to 2000grit. But remember the more you lap it the less thermal paste u gota use. BTw i like to lap it in a circular motion in the lower grit and when it comes to the high grit sandpaper i like to lap it in a up down motion e.g. 2000grit
OcLinNoob: For better results use a black permanent marker and mark the whole HS base then lap it. until all the black ink has come off then u know its flat. normally a 600 grit is fine to start off with and its not neccessary to go to 2000grit. But remember the more you lap it the less thermal paste u gota use. BTw i like to lap it in a circular motion in the lower grit and when it comes to the high grit sandpaper i like to lap it in a up down motion e.g. 2000grit
- Joined
- Mar 15, 2003
- Location
- north cali
here's a thread on lapping
Rickster said:
lol sounds dirty
my slk-900u arrived today and the base is very good, just very small hair-line lines (errr lol) with a kind of fuzzy mirror image, i will take pics and make a thread later since people were worrying about the quality of thermalright heatsinks last week
what grit sandpaper should i start with?
- Joined
- Jul 27, 2003
- Location
- New York, New York
If you are very very very weak like me, you dont use much pressure when rotating so it takes a while to get it were its supposed to be. Also you do a better job if you take your time and not press too hard.
Last edited:
- Joined
- Aug 15, 2003
- Location
- Springfield, VA
btw, where do you guys go to buy 800grits-1400 grits sandpapers big one not the small square one i got off some site
- Joined
- Jul 27, 2003
- Location
- New York, New York
I go to auto parts stores. Unless you got a good home depot or lowes that carries the stuff but auto shops like auto barn are almost guaranteed to have em.
- Joined
- Jul 11, 2003
- Location
- Next Door door to Hell
Ace Hardware carries up to 1500 grit. I have tried Home Depot type places and they do NOT go above 800. Also at Ace Hardware places you can buy them one sheet at a time. Places like Home Depot were selling thme in boxes of 25 or 50. At least here in the suburbs of Chicago
- Joined
- Jun 12, 2003
- Location
- Reynoldsburg, OH
The Zalman 7000CU has the flattest base I have ever seen short of a swiftech out of the factory. I have dealt with over a dozen of them, and hand lapping any would harm their performance.
- Joined
- Jul 27, 2003
- Location
- New York, New York
What about handlapping a swiftech up to 2000 grit? I got the mcx462+T but i am not lapping heatsink base casue that is attached to pelt. I am lapping cold plate which is pretty much a copper block inbetween CPU and pelt.
