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Zalmann 9700 lapping.

post #1 of 13
Thread Starter 
So the CPU came out just fine, but trying to lap the cooler was teh tuffs and it really didn't help with temps. I don't think that it's perfectly flat. Any advice or techniques for lapping these top heavy coolers?

It's really tough to keep it from tipping. Not much room for fingers in between the pipes.

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post #2 of 13
Maybe hold it by the fan's "legs"
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post #3 of 13
Try turning the mounts upside down and using them to hold it, tape the sandpaper to some glass or a mirror.
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post #4 of 13
Hold the base.
Derrrr.
Or you could do it backwards. Secure the HSF with a clamp or something, tape sandpaper to a flat object, and move the sandpaper instead of the HSF.
    
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post #5 of 13
The Zalman 9700 comes already has flat as it can be, IMO, you'll barely shave half a degree by lapping it. You'll squeeze more out of it by modding the fan and trying to find a way to hold it down even tighter.
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post #6 of 13
Quote:
Originally Posted by Zeag View Post
The Zalman 9700 comes already has flat as it can be, IMO, you'll barely shave half a degree by lapping it. You'll squeeze more out of it by modding the fan and trying to find a way to hold it down even tighter.
Agreed.
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post #7 of 13
Thread Starter 
Ya, it doesn't sit really tight against the CPU. Any suggestions? I shaved down to the copper, which I thought would make some improvements... Copper to copper.
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by Zeag View Post
The Zalman 9700 comes already has flat as it can be, IMO, you'll barely shave half a degree by lapping it. You'll squeeze more out of it by modding the fan and trying to find a way to hold it down even tighter.
I dunno about that statement about it coming as flat as it could be. You could clearly see a concave as I sanded. It took forever to get a clear copper base showing.
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post #9 of 13
most of the temp gain you get is from lapping the CPU, the HSF is usally only a few degrees.
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post #10 of 13
Thread Starter 
Quote:
Originally Posted by accskyman View Post
Try turning the mounts upside down and using them to hold it, tape the sandpaper to some glass or a mirror.
I have no idea what this means. The retention bracket?
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