To lap the Prolimatech Megahalems or not

Not yet will be fitting it tomorrow,just thought some peole on here may have done it.
 
yes i've lapped mine, but it wasn't too bad in stock form.... not nearly as bad as the Thor's Hammer, that really does need lapping; it has quite deep machining marks on it, but once lapped it looks gorgeous.

the Megahalems has a plated underside and is supposed to be slightly bowed on purpose.......... but i lapped mine regardless.

600 grade and then 1200............stick the WET and DRY to a piece of glass, damp it with water.

move the cooler slowly...apply no pressure, just let it skate backwards and forwards...turn it through 90 degrees once every 30 seconds..

it takes about 5 mins on 600 grade and then about 15 mins on 1200...

you're not after a perfect shine, but perfect flatness........... because if you do it right it'll shine anyway.

you can lap it with 1200 only, but it'll take a lot longer to get it flat.

i like doing it, it's so relaxing.....

i'll give you a tip, dont move the cooler with your arms, pivot your body back and forth via your pelvis, keep your chest and arms fixed stiff and your elbows tight to your chest, this will prevent the Cooler rocking.......... this gets the cooler flat very quickly.:cool:............do not change from the fore to the back stroke quickly either, because this will rock the cooler too.....:D:D:D
 
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clone said:
Sounds like a dance move :)
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no, you'll look more like a total retard :D:D
but it'll stop the cooler sticking or rocking/ tearing the paper etc.

you cant lap it like a CPU............ yes; this you can move quickly..... but the cooler is a big clumsy, top heavy lump of metal :D:D:D

if you move it fast, it'll tear a 6'' gash in your paper............... because i've done this about 3 times
 
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Does lapping the base of a cooler give you a considerable difference in temps?

I have been thinking about lapping my TRUE, as the base has really bad machining marks, it does seem flat when I held a straight edge against it, but I would prefer it if it had a nice polished finish to it instead of the way it is atm.
 
Mal X said:
i like doing it, it's so relaxing.....

i'll give you a tip, dont move the cooler with your arms, pivot your body back and forth via your pelvis, keep your chest and arms fixed stiff and your elbows tight to your chest, this will prevent the Cooler rocking.......... this gets the cooler flat very quickly.:cool:............do not change from the fore to the back stroke quickly either, because this will rock the cooler too.....:D:D:D
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OK, I know lapping is important and some of you guys take it very seriously, but this is just disturbing on so many levels.

:eek:
 
DavyBoy said:
Does lapping the base of a cooler give you a considerable difference in temps?

I have been thinking about lapping my TRUE, as the base has really bad machining marks, it does seem flat when I held a straight edge against it, but I would prefer it if it had a nice polished finish to it instead of the way it is atm.
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if you lap the CPU too, it'll reduce temps by 8 to 10 degrees.......... cooler only, about 3 degrees.
 
DavyBoy said:
Does lapping the base of a cooler give you a considerable difference in temps?

I have been thinking about lapping my TRUE, as the base has really bad machining marks, it does seem flat when I held a straight edge against it, but I would prefer it if it had a nice polished finish to it instead of the way it is atm.
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I lapped my TRUE and my old q6600, knocked 11c of the temps, used 400, 600, 800, 1200, 1500 and 2000 grit on both, lapping works best when both cpu and cooler base have been done.
 
setter said:
I lapped my TRUE and my old q6600, knocked 11c of the temps, used 400, 600, 800, 1200, 1500 and 2000 grit on both, lapping works best when both cpu and cooler base have been done.
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yea, to be honest it's not worth the effort unless you do both, because the CPU definitely isn't flat

my guess is, the dome on the base of the Megahalems, is on purpose because it matches the ``crater`` on the CPU.............makes sense doesn't it.
 
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It's electroplated with nickel, that's never going to be flat. The copper IHS probably starts off flat then distorts when soldered.

It is probably worth lapping, though Ive not seen anyone do it to this one yet. Too new I guess. I used a lapping table for my TRUE :)

Still intending on lapping my supreme but life getting in the way a bit :(
 
it would be expensive for the manufacturer to lap it after assembly and he'd definitely have to charge you for that.

as for the CPU..... it's only overclockers that are interested, about 0.5 % of the total market
 
Hmm, will it really knock that much off my temps?!?

I don't know if I would want to lap my chip, as I wouldn't want to void my warranty, knowing my luck something would go wrong with my processor!

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That lapped i920 looks crazy, highly polished or what??
 
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I really want to lap my Megahalems and i7 920, but dont want to ruin the warranty so early on . . . im sure there will be no issues but still dont want to risk it.
 
According to Intel their warranty is voided by almost anything. Even using non factory paste or any aftermarket heatsink. That said, you can do this anyway and just pretend you didn't, lapping is less subtle.

Processors don't really die, so warranty on them isn't much of an issue. Warranty on a heatsink is pretty meaningless too, I can't see anything ever going wrong with my TRUE.

Lapping my e8400 did a world of good since I was temperature limited. Lapping my q9550 wouldn't have helped at all since it was hitting 60 under load, and voltage limited. Almost all the 920s seem to be motherboard or temperature limited, if it's the latter then lapping will probably help and can't hurt.
 
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