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Is my block ruined? - Page 2

post #11 of 15
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Quote:
Originally Posted by Cakewalk_S View Post

I also don't recommend you use vinegar on metals, its a mild acid and may cause pitting...its good to spray and leave on metals to etch them....i wouldn't use it to clean

If you don't mind me asking, what do you use to clean the insides of blocks? Nearly every thread says to use vinegar solution/ketchup/lemon juice. All of them are acidic - just different acids. Other threads say to not use Brasso inside the block (which smelled like ammonia).

Thanks just a nickname. I am not sure if I am going to go any further than where I am at. The scratches are minor and I would think paste will mask it. I am switching from am3 to an 1150 so I don't know if the scratches will be in more of a nuisance area now though.
post #12 of 15
I'd suggest sanding it down more then. The smoother the base of your block, the better the heat transfer. That's why some even lap their cpus.
Scratches will lower the efficiency of your block.
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post #13 of 15
Use a sanding sponge if ya don't wanna chnage the engineered shape of what ya sanding...... when lapping, peeps generally use a piece of glass or marble which they lay the paper on and this kills the engineered curve.
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post #14 of 15
Quote:
Originally Posted by Cakewalk_S View Post

Quick fixes are the best!

I also don't recommend you use vinegar on metals, its a mild acid and may cause pitting...its good to spray and leave on metals to etch them....i wouldn't use it to clean

This^^

Quote:
Originally Posted by Just a nickname View Post

Quote:
Originally Posted by lostinsurf View Post

So I was cleaning with some vinegar and salt. When I flipped it over I saw this. I can scrape it with my fingernail but it feels like pitting more than buildup. It only seemed to happen where the old thermal paste was that I had cleaned off. Will this affect cooling? Do I need a new block?


Careful with lapping, nearly every block/cooler have a convex base to improve surface contact with the die. If you lap the block, you will lose that and the result might be worse than what it was initially. I think what you have is caused by the salt solution evaporating and leaving the salt crystals behind. I would try to remove that with some isopropyl alcohol if you have.

And this ^^

Dont use acids to clean anything in your loop,its just not required and can damage the finish. Use a toothbrush and some elbow grease to clean blocks.
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post #15 of 15
Even if it is pitting it won't affect cooling. That aluminum plated piece of copper on top of the die is called an IHS (integrated heat spreader) for a reason. It spreads heat - meaning losing a combined total of less than half a square inch of direct contact between IHS and waterblock makes literally zero difference in temps provided the rest of the surface is making good contact. Also, you use TIM, so those little pits won't even be filled with air, they're filled with TIM.
Edited by Nnimrod - 12/6/13 at 1:04am
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