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Corsair H100 / H80 / H60 noise, grinding pump - *fix* + official Corsair response - Page 4

post #31 of 1734
Thread Starter 
Hopefully you'll get a more civilized unit this time smile.gif
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post #32 of 1734
Quote:
Originally Posted by Muttley916 View Post

OP Thanks! .... I just did the 1n4001 diode fix and it worked as described... Pump is now silent.... Now to get quieter fans lol... This is my second Hydro water cooler... I exchanged my H100 for an H80.... Same pump noise...
IN4001 diode from Radio Shack - Check
Soldering Iron - Check
Flux - Check
Heat Shrink - Check
PSU 4pin Molex Extension - Check
Note: Remember to note which direction the silver polarity mark on diode from pic in this thread.
Rattle HDD noise eliminated from Hydro Series Pump - Priceless
Thanks Again!
-Mutt

Culprit: Intel Water cooler's pump (by asetek)

Soldering Iron: Hakko FX-888 - Check
Flux: Flux Pen - Check

PSU 4pin Molex Extension - Gotta find one.

I do not know much about electronics. I will purchase enough to make 3 various cables of diff diodes. How much does 1N4001 reduce? and how much do the others reduce? I want one that'll reduce less while the other reduces more so that I can choose optimally.

1N4001 -- (unsure of good brands for diodes) Please suggest: http://my.element14.com/jsp/search/browse.jsp?N=2105+203047&Ntk=gensearch&Ntt=1N4001&Ntx=mode+matchallpartial
Heat Shrink -- (unsure of size, type, and everything actually) Please suggest: http://my.element14.com/jsp/search/browse.jsp?N=2105+204365&Ntk=gensearch&Ntt=heat+shrink&Ntx=mode+matchallpartial&No=0&getResults=true&appliedparametrics=true&locale=en_MY&divisionLocale=en_MY&catalogId=&skipManufacturer=false&skipParametricAttributeId=&prevNValues=2105+204365&filtersHidden=false&appliedHidden=false&autoApply=false&originalQueryURL=%2Fjsp%2Fsearch%2Fbrowse.jsp%3FN%3D2105%2B204365%26Ntk%3Dgensearch%26Ntt%3Dheat%2Bshrink%26Ntx%3Dmode%2Bmatchallpartial%26No%3D0%26getResults%3Dtrue%26appliedparametrics%3Dtrue%26locale%3Den_MY%26divisionLocale%3Den_MY%26catalogId%3D%26skipManufacturer%3Dfalse%26skipParametricAttributeId%3D%26prevNValues%3D2105%2B204365

(it has to be purchased from this site as I live in malaysia)

Thanks
post #33 of 1734
Thread Starter 
Can you show me some photos of that cooler?
If it's a different make, it might have a different problem and this fix could not work with it.
If it's a tall, round block, it might have a loose shaft like the Antec Kuhlers, if so you might want to start with the magnet fix for that.
Take as small, strong magnet - like one of those rare-earth magnets - and place it on the top (there the logo is) and move it around, you might find a spot which makes it stop rattling.

As for the diodes, definitely Vishay is a good brand, but any diode that is marked 1N4001 must have the same characteristics so it really doesn't matter.

Hestchrink - 4mm or 5mm with 2:1 ratio, color is up to you. 3mm might not pass over the diode and if you get bigger than 5mm, it will not shrink enough to catch 18 AWG wire, unless you find one with a higher ratio, like 3:1 or 4:1.
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post #34 of 1734
http://www.bit-tech.net/hardware/2012/02/08/intel-thermal-solution-rts2011lc-review/1

powered by the motherboard
no power molex

it's made by asetek, and if im not wrong, corsair Hydro products are made by asetek too.

i thought we'll be looking at the same mod. hmm
post #35 of 1734
Thread Starter 
Corsair Hydro coolers H60, H80 and H100 are made by CoolIT Systems and it's a different design.

Older Corsair Hydro coolers, such as the H50 and H70, were I believe made by Asetek, and were the tall-block type units, like Antec Kuhler.

There the problem was with the impeller's shaft, which could be addressed bu either a magnet or a heatshrinking the shaft itself, the latter meaning you have to take the pump apart.
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post #36 of 1734
Mind providing me an understanding as to why there's this rattling sound? I don't get it at all. It does appear that almost every brand suffers this problem.
post #37 of 1734
I got lucky with my third H100, no noise at all. Well, when the block is upside down on a GPU that is.
Quote:
Originally Posted by biatche View Post

Mind providing me an understanding as to why there's this rattling sound? I don't get it at all. It does appear that almost every brand suffers this problem.

The pump is resonating noise throughout the case. That's one explaination. The fix is to fit it tighter. Another is that air might be trapped in the system. Which would be possible with a closed loop.
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post #38 of 1734
Thread Starter 
If we're talking about the tall-block coolers, then I think the problem was/is that the impeller's shaft is loose in its bearings and it literally rattles.

As for the flat Corsairs units, they have so many problems that I wouldn't know where to begin, but the rattling specifically is hard to explain and investigate, I believe it's either a mechanical problem with the sleeve bearing or a resonance in BLDC windings caused by the PWM signal and the frequency they chose for it. I could confirm that, but like I said, I don't have a unit to dissect, I designed the diode mod on a cooler that had to live and gathered the rest of the knowledge from my own research, supported by detailed photos of the unit's internals provided by a friend.

If you're interested in more details, you'll find them here:
http://forum.corsair.com/v3/showthread.php?t=106031&page=2
starting from post #26.

If anyone was willing to donate an H60/H80/H100 for science, I would gladly apply the findings.
Not many volunteers, eh?
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post #39 of 1734
I'm not absorbing this well enough (I do not have good knowledge of physics), so in my case -- Intel RTS2011LC (made by asetek) this mod wouldn't apply?

I'd need to do something else? Magnet / heatshrinking shaft? I thought I was closing in on a solution here.. now I just feel further away lol.
post #40 of 1734
Quote:
Originally Posted by benfica101 View Post

ok yeah i read on forum that by tapping on the hoses can help, i heard a couple of bubbles get passed though the pump. But still noise persists i'll give it a month see if it stops
thanks for your advice

I used to give this advice out back when I had my H50.

I also used to say to make sure you tighten the screws evenly. I once had my H50 making weird noises because one screw was not as tight as the other screws. Not only did it fix the noise issue, but helped my temps slightly.
    
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