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Lapping with Blowie !

post #1 of 7
Thread Starter 
So i finnaly got my HSF, time to lap this sucker !


So this the original copper plate of the HSF, pretty bad imo


This is after lapping 240, now i started to sand with a 240 grit, that took forever cause the copper plate wasn't flat. so it took some time before the whole plate was sanded.


hard to see but this was after grit 400


after grit 600, now i still have been sanding in straight lines, changing sides from 10 to 15 strokes.


grit 800

btw that cleaning kit from artic silver is nice, but good old fashion washing gasoline from a home depot works better (dunno the word for it , it's it gasoline that comes in bottle and is real good for cleaning dirty surfaces)


grit 1000, looking better !


now this is what i had to order, some super deluxe grit paper

the following pieces are from left to right: 4000 - 6000 - 8000 - 10000 - 120000 (none waterproof)

and the 2 at the bottom are: 800 - 1000 (waterproof)

now here is where the problems start. the sanding paper up to 1000 was 3M and waterproof, it did his job real well ! but from 4000 to 12000 where some cheap brand from zwitserland and was not waterproof.


grit 4000, now i figured that if i don't have 2000 it just takes longer with 4000 to get the same result. now i started to sand the copper plate but it wasn't being any better as the 1000


grit 8000, well this is was going nowhere

i asked some guys what to do and they said you have to sand in circles, ok no problem so i started to sand in a 8 figure. **** ! this was going from bad to worse ! something got wrong and i had real deep scratches.... so i had to redo it but the problem wasn't in the sanding techique but in the sanding paper. it seemed that the sanding paper had different size of grits on it ffs ! i got real mad and was feeling the urge to wreck my HSF and everything standing near me. but luckily my dad came to help me. he had some experience with sanding and polishing. i told him that my goal was to flatten the surface and then polish it to get the most contact of surface. so my dad took some chrome cleaner ( a tube with polish in it ) and started polishing it on a glass plate. well we found out that that where some real deap scratches. so i had to redo the lapping and did it with the 4000 grit.

so in my anger i tottaly forgot to make pictures of how i solved this problem...

but what we did is make sure the surface was flat. then we took the ultimate weapon: Black&Decker Mouse, the ultimate sanding and polishing equipment !

we took a 2000 grit pad (which was 3M) with some chrome cleaner on it and water to make the density a little less. then after 2 minutes the surface was starting to look like a mirror image ! that means the 4000 grit and higher was just a bunch of crap. so i've learned, if you want sanding paper, go for 3M. anyway, after 20 minutes of sanding and polishing the copper plate was real shiny


the final result this you probably don't want to do cause the final polishing wasn't done on a glass piece.


looks nice to me, i'm glad with the result (knowing that it wasn't done perfectly) but for the first time i think turned out just fine.

i'm at 33 degrees idle with an ambient of 22 degrees, a little high imo. for starters i think i used to much AS5, they told me it needs a weeks before you see any temp drop. and if that won't work i redo the AS5, and if that won't work i will have to lap my HSF again (with 3M sanding paper ! )

Blowie
post #2 of 7
hah, you finally got it shinny, goodjob, bud
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post #3 of 7
Nice job. When you lap you will need ALOT less thermal paste, i found this out by trial and error. When i did my HSF i first put on the normal amount and notice that my temps werent what i expected. So i cleaned it off and just put the smallest spec of thermal paste i could squeeze out on to it and my temps went right down. When the HSF in not lapped all the thermal paste gets into the grooves and cracks ect and does what its supposed to do. When you use to much on a lapped surface it creates more of a barrier.
    
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post #4 of 7
Thread Starter 
i will wait a day or 5, if temps will not drop i will redo the AS5 !
post #5 of 7
Nice work
    
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post #6 of 7
i had high temps until i reapplied the as5 using less. less as5 instantly netted me a 2º drop at idle
 
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post #7 of 7
Thread Starter 
Quote:
Originally Posted by svtfmook View Post
i had high temps until i reapplied the as5 using less. less as5 instantly netted me a 2º drop at idle
running @ 1,3Vcore now and temps are a little lower then before, there running between 30 and 32 degrees atm when idle, and while gaming it only rises 3/4 degrees...

still gonna wait those 3 more days and then i decide to replay or not
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