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Help! 23 C temp rise after 1.5 years (full nickel CPU block, EK Supreme) - Page 2

post #11 of 42
Quote:
Originally Posted by mastabog View Post

Many thanks for the answers so far!

@derick: I did find that post myself, but can't say whether cleaning nickel plated copper is the same as cleaning full nickel. Should I assume so?

@threephi: So how did you clean your full nickel block in the end? (was/is yours full nickel as well?)

I'll definitely take before and after pics.

I vacuum all my fans regularly so that dust doesn't settle, including the radiator (in which I blow several times until no more dust comes out). To be honest, I can't say how my temps dropped over time because I stopped doing stress tests. I moved house about 6 months back so the Liquid Ultra TIM, if it had dried and hardened, may have cracked due to transport shocks. I doubt it but I'm going to replace just the TIM first and nothing else and test again before I clean the water cooling parts.

Cheers
"Full nickel" means that the base and the top are both nickel-plated copper, as opposed to the base only. Noone makes pure nickel blocks, because nickel has poor thermal properties and is about three times as expensive as copper. I cleaned mine by wiping with diluted vinegar, and had to use a mild amount of elbow grease to get some surface staining off. My block had some plating damage so I didn't go too heavy for fear of chipping off more, but I was still trying to be careful by rinsing it off between wipes with distilled. I never let it soak except for stupidly laying it on the rag when I was done, which put some dark spots on the previously pristine plating on the dry side of the block top. I was rather upset with myself after that rolleyes.gif I would probably avoid vinegar entirely next time, but to be honest, I will also probably never buy a plated block again and stick with copper only.
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post #12 of 42
Thread Starter 

Thanks. I take it then that the nickel plating is only for corrosion/oxidation prevention (and looks). I seem to remember a test performed by EK where the nickel plated heatsinks achieved lower temps ... I was silly enough to believe it.

 

What about tubing. Is there tubing that will perform better over time (leave off less organics or decompose less)? Is it recommended to replace tubing after a while? Or would a cleaned (vinegar+dist water) and rinsed tube perform just as well? I'm mostly curious as tubing is cheap to replace.

 

Thanks again to everyone who replied so far.

post #13 of 42
Thread Starter 

As opposed to the US, it seems it's a tad non-trivial to buy distilled water here in the UK in the parts where I live ... also expensive in most places: 7+ GBP a litre?!

 

I found de-ionized water cheaper at Halfords: here ... would that do? I know de-ionized is similar (slightly less pure than condensed distilled).

 

If not, can I use clear (non-dyed) coolant to rinse after cleaning with hot/boiling tap water, or with vinegar? I still have plenty of clear but it's a premix ...

 

Cheers

post #14 of 42
Deionised water is fine. I have used it in my last 2 builds both were run for over 2 years with no problems.
post #15 of 42
Quote:
Originally Posted by mastabog View Post

Thanks. I take it then that the nickel plating is only for corrosion/oxidation prevention (and looks). I seem to remember a test performed by EK where the nickel plated heatsinks achieved lower temps ... I was silly enough to believe it.

What about tubing. Is there tubing that will perform better over time (leave off less organics or decompose less)? Is it recommended to replace tubing after a while? Or would a cleaned (vinegar+dist water) and rinsed tube perform just as well? I'm mostly curious as tubing is cheap to replace.

Thanks again to everyone who replied so far.
That's pretty much on the nose about nickel thumb.gif It's also harder than copper so it's more resistant to scratches etc. I haven't seen that test but I would expect that the effect on thermals would be negligible since the plating layer is so thin. EK make good blocks but they aren't the most scientifically rigorous company in my opinion.

Primochill markets their latest tubing as more resistant to clouding than previously, but I'm not sure how it compares to other brands. So long as your old tubes aren't brittle or otherwise damaged they should still work, but if it were me I'd probably replace them anyway.
Edited by threephi - 5/16/14 at 1:50pm
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post #16 of 42
Thread Starter 

To my shame, this is most probably part of the problem:

 

 

Adding to my shame, I admit that I did not clean the radiator before installing it. I partly blame the shop who told me back then that it's safe to use without prior cleaning. Is that friendly looking green stuff from the tube or radiator in your opinion?

 

Should I clean the pump too? Any advice in that regard?

 

Much to learn here for me :(

post #17 of 42
Quote:
Originally Posted by mastabog View Post

To my shame, this is most probably part of the problem:


Adding to my shame, I admit that I did not clean the radiator before installing it. I partly blame the shop who told me back then that it's safe to use without prior cleaning. Is that friendly looking green stuff from the tube or radiator in your opinion?

Should I clean the pump too? Any advice in that regard?

Much to learn here for me frown.gif

That looks allot like what's in my system. That's plasticizers from the tubes. I've had that crap in my rigg for a while now just dont have the time to tear everything apart and clean/rebuild everything
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post #18 of 42
Definitely looks like plasticizer leeching from the tubing. You'd want to dissamble everything and give it a good rinse with hot/boiling water (No vinegar or other acids please! biggrin.gif) a few times then last few rinses with distilled/deionized water.

Your temperature increase is probably because your CPU block is clogged with that crap that has leeched from the tubing. After everything is cleaned, I highly suggest you to change the tubing for some Primochill Primoflex Advanced LRT to prevent that, most other tubings will end up leeching plasticizer again!
    
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post #19 of 42
Thread Starter 
Quote:
Originally Posted by kcuestag View Post

Definitely looks like plasticizer leeching from the tubing. You'd want to dissamble everything and give it a good rinse with hot/boiling water (No vinegar or other acids please! biggrin.gif) a few times then last few rinses with distilled/deionized water.

Your temperature increase is probably because your CPU block is clogged with that crap that has leeched from the tubing. After everything is cleaned, I highly suggest you to change the tubing for some Primochill Primoflex Advanced LRT to prevent that, most other tubings will end up leeching plasticizer again!

Re: tubing, I just ordered the Tygon R6012 (norprene, supposed not to leach plasticizer). I read good things about both this Tygon and the Advanced LRT.

 

By "rinse with boiling water a few times", I assume the pump and reservoir should be part of the process, correct? Can the pump and reservoir withstand boiling temps?

 

Also, do I need to clean the pump separately? Any advice regarding that?

 

Many thanks for all the info so far.

post #20 of 42
Quote:
Originally Posted by kcuestag View Post

Definitely looks like plasticizer leeching from the tubing. You'd want to dissamble everything and give it a good rinse with hot/boiling water (No vinegar or other acids please! biggrin.gif) a few times then last few rinses with distilled/deionized water.

Your temperature increase is probably because your CPU block is clogged with that crap that has leeched from the tubing. After everything is cleaned, I highly suggest you to change the tubing for some Primochill Primoflex Advanced LRT to prevent that, most other tubings will end up leeching plasticizer again!

OP, please note Primoflex Advanced LRT here (don't get the Advanced PRO). I've seen in *many* forums that this stuff is the way to go. It's the path i'll be taking myself in about a year in my own build.

kcuestag, good looking out!

*EDIT* slow to the draw, I see. :-D
Edited by SigTauMatt - 5/16/14 at 3:14pm
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