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GPU water block contact question

post #1 of 8
Thread Starter 
Hey all I am making choices on what waterblocks to get for my 2 gtx 460 cards. It's between the EK brand and the XSPC brand. Both use copper which keeps cool better than nickel, but take a look at the way each waterblock makes contact with the GPU and VRAM? Wouldn't it seem that the EK make more flush contact with the components? Wouldn't you think this is better?

EK - http://www.frozencpu.com/products/11...tem.html#blank

XSPC - http://www.sidewindercomputers.com/xsra460fucov.html

Tell me what you think? And all looks aside, tell me what you might get. Price wise it looks like XSPC, but performance wise? I dunno.
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Eva Red v1
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post #2 of 8
EK block
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It's in pieces
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by triangle View Post
EK block
OK, you said EK Block. But you never explained what you thought about the contact points on the board.
Eva Red v1
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Eva Red v1
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post #4 of 8
They are both pretty similar in terms of VRM cooling, if you want a fullcover block for the 460 that actually covers the VRMs get the Koolance block.
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post #5 of 8
Thread Starter 
Quote:
Originally Posted by charliehorse55 View Post
They are both pretty similar in terms of VRM cooling, if you want a fullcover block for the 460 that actually covers the VRMs get the Koolance block.
I was looking at the Koolance blocks. Those are nickel though and the CPU block that I ordered was copper. Isn't there a problem with mixing metals within the same loop?
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Eva Red v1
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post #6 of 8
Quote:
Originally Posted by CP2 View Post
I was looking at the Koolance blocks. Those are nickel though and the CPU block that I ordered was copper. Isn't there a problem with mixing metals within the same loop?
Yes, if you mix metals that are far apart on the galvanic scale you will have trouble. Luckily for you copper, nickel, brass, gold and silver are all easily within the acceptable range for your purposes. The main metal you want to watch out for is aluminum, if you have any of it in your loop it will cause problems.

I have a copper radiator with brass endcaps and two nickel blocks and no problems with corrosion yet.
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post #7 of 8
Thread Starter 
Quote:
Originally Posted by charliehorse55 View Post
Yes, if you mix metals that are far apart on the galvanic scale you will have trouble. Luckily for you copper, nickel, brass, gold and silver are all easily within the acceptable range for your purposes. The main metal you want to watch out for is aluminum, if you have any of it in your loop it will cause problems.

I have a copper radiator with brass endcaps and two nickel blocks and no problems with corrosion yet.
I was just doing some research. I don't know why i didnt see it, but the Koolance blocks ARE copper. They just have nickel plating. SO, I think I'll get these. Surprisingly enough on the koolance site they are cheaper than the other WC component sites. $95 on Koolance and $109 and $119 on other sites.

EDIT: I noticed you have the Koolance blocks as well. I assume you like them and vouch for them as well.
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Eva Red v1
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post #8 of 8
I've never heard of a watercooling block that was actually made entirely from nickel. Whenever a watercooling block is called "nickel" it's actually made from copper and has simply been electronically plated with a very thin layer of nickel.
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Labor of Love
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