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Old 01-14-2008, 10:31 AM   #21 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

The TRUE is a great heatsink, but there appear some quality control issues with it. Lapping it will make a huge difference. The "scratches" arent from anything you did, thats just the way the base was milled. Mine was like that too, after i lapped it, my temps came down around 10C on average.
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Old 01-14-2008, 10:54 AM   #22 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

wow ! 10c... Thats huge!
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Old 01-14-2008, 11:34 AM   #23 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

Well, i actually dropped about 14C on the outer cores and about 5C on the inner cores. My true was VERY concave and was only making good contact dead center.
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Old 01-15-2008, 01:32 PM   #24 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

Yeah, I read that the TRUE's base isn't the best. Tell me, I've heard about lapping, but I've never done any. How do you "lap" a heatsink exactly?
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Old 01-15-2008, 01:41 PM   #25 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

tape sandpaper to glass
wet sandpaper
pull base of heatsink along sandpaper until satisfied with flatness.
There are tons of lapping guides around.
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Old 01-15-2008, 03:52 PM   #26 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

Pictorial HSF+IHS lapping guide! (check this out if you're thinking about lapping) - Overclock.net - Overclocking.net

pictorial lapping guide for TRUE And CPU
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Old 01-16-2008, 12:14 PM   #27 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

Quote:
Originally Posted by Akubane View Post
Smashing, cheers mate. I'll have a look now.
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Old 01-16-2008, 03:25 PM   #28 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

XD np. I thought it was a good guide, and lapping Will make a difference if the units dont sit flat. Easy way to tell is stand the TRUE upside down, seat the processor on top, and shine a light from the back XD All in the guide though.
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Old 01-16-2008, 03:35 PM   #29 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

Or just get a razor blade and see if you can see light between the blade and the heatsink.
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Old 01-16-2008, 03:46 PM   #30 (permalink)
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Default Re: Thermalright Ultra-120 + Armor questions.

yeah. but if your true is flat and cpu is convex thats no good XD
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