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Relative noise levels of pumps?

post #1 of 17
Thread Starter 
For a while I thought that the DDC was about the quietest watercooling pump around, but recently I got an email back from Sidewinder Computer's tech support claiming that the D5 was quieter even at full speed. Now I'm curious, which pumps are the quietest? Has anyone done a comparison on them, perhaps in a similar manner to Martin's fan testing?
    
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post #2 of 17
Well, I've only ever had the D5 - I have two running in serial, with the EK Single Loop Dual Top. The whole contraption is on a shoggy, which makes the thing inaudible. All my fans run at 400 rpm, so also completely silent - if there where pump noise I'd here it. All I hear is the constant whine from my PSU.

More generally about pump noise - from what I have learned, they tend to be louder on stock tops, and become quieter with aftermarket tops, no matter if that's a d5 or a mcp355
    
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post #3 of 17
Quote:
Originally Posted by sunnyville View Post
Well, I've only ever had the D5 - I have two running in serial, with the EK Single Loop Dual Top. The whole contraption is on a shoggy, which makes the thing inaudible. All my fans run at 400 rpm, so also completely silent - if there where pump noise I'd here it. All I hear is the constant whine from my PSU.

More generally about pump noise - from what I have learned, they tend to be louder on stock tops, and become quieter with aftermarket tops, no matter if that's a d5 or a mcp355
Talking about PSU, can't I just get a second fan controller and just swap the PSU fan with something better (140mm) and keep it at the speed I want? Of course I will keep it at full speed because I don't want it overheating or whatever, but at least the fan will be quieter. The only noisy thing is my PSU ..so annoying. All this work to keep it silent and this stupid PSU ruined everything haha
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post #4 of 17
you can replace the fan, I have read about that before. However you will void your warranty...not that watercooling doesn't hehe
    
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post #5 of 17
DDC is a noisy, vibrating thing. The D5 is very quiet (but big, which made my life horrible).
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post #6 of 17
I have a 355 and its dead silent
    
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post #7 of 17
Quote:
Originally Posted by sunnyville View Post
you can replace the fan, I have read about that before. However you will void your warranty...not that watercooling doesn't hehe
Don't care for warranty anyway. Never used any kind of warranty in my entire life haha
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post #8 of 17
Quote:
Originally Posted by Phos View Post
For a while I thought that the DDC was about the quietest watercooling pump around, but recently I got an email back from Sidewinder Computer's tech support claiming that the D5 was quieter even at full speed. Now I'm curious, which pumps are the quietest? Has anyone done a comparison on them, perhaps in a similar manner to Martin's fan testing?
The D5 is completely silent. The DDC has a fair amount of vibration which, if not insulated, will create up to 35dB of noise. That's louder than most medium speed fans.
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post #9 of 17
Thread Starter 
Quote:
Originally Posted by allikat View Post
DDC is a noisy, vibrating thing. The D5 is very quiet (but big, which made my life horrible).
Quote:
Originally Posted by Somenamehere View Post
I have a 355 and its dead silent
This is the sort of thing that makes figuring this stuff out tricky, many people have different noise tolerances, or even misattribute the source of noise. I've got a pretty strict tolerance for noise as far as PC noise is concerned, particularly noise from errant vibrations.
    
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post #10 of 17
Quote:
Originally Posted by Lune View Post
Don't care for warranty anyway. Never used any kind of warranty in my entire life haha
Your PSU will now explode tomorrow.

More on topic, I have a D5, and the only time I ever heard it was when I was leak testing my loop and it was the only thing on. Even then, I had to put my ear to it to make sure it was running.
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