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Ways to slience a D5 MCP 35x pump without the Slient Box - Page 2

post #11 of 36
Thread Starter 
I know but i figured for 3 of these type of cards on one loop, being as restrictive as they are, i didn't want to take the chance.

ill give it a try but could someone answer my question about connecting the PWM and Molex Power Adapter?
post #12 of 36
Molex connector is always needed to supply power for pump, other connector has only cables for rpm monitoring and speed control.
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post #13 of 36
Quote:
Originally Posted by jblanc03 View Post

With the PWM connector on the pump, do i still need to plug the molex power connector to my Power Supply?

Yes.

Without the PWM hooked up the pump is just running at 100% all the time. If temperatures demand, you can still ramp the speed up to 100% again using software controls, or even BIOS cooling profiles.
post #14 of 36
Quote:
Originally Posted by jblanc03 View Post

Load and Temperatures are 2 different things.
My temps would suck if i use PWM. As others have mentioned to me on this forum numerous times

No they wouldn't. Flow rate has very little affect on temperatures. You could run your pumps @ 2000rpm and your would maybe see 1˚C increase in temperatures. But I have my doubt you would see even that much.
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post #15 of 36
I'm running a pair of 35X and one of the reasons 2 are noisier than 1 is that the speeds are generally unsynchronised. I'm guessing, but I think if they ran at exactly the same speed they'd be a bit quieter. After saying that they tend to have particular speed ranges where they're particularly noisy e.g. running mine at about 3100-3200rpm is quieter than at 2700-2800rpm. It took a bit of experimenting to find the quiet settings.

It makes a big difference mounting them on foam and I use a couple of Shoggy Sandwiches which transfer no noise at all to the case. I'm running the pair with 7 blocks and 3 quad rads and they spend the vast majority of the time running at a very quiet 1700rpm only ramping up to around 3400rpm when the system is under load. Anything over 3400rpm makes no difference to temps.
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post #16 of 36
Thread Starter 
Quote:
Originally Posted by Big Elf View Post

I'm running a pair of 35X and one of the reasons 2 are noisier than 1 is that the speeds are generally unsynchronised. I'm guessing, but I think if they ran at exactly the same speed they'd be a bit quieter. After saying that they tend to have particular speed ranges where they're particularly noisy e.g. running mine at about 3100-3200rpm is quieter than at 2700-2800rpm. It took a bit of experimenting to find the quiet settings.
It makes a big difference mounting them on foam and I use a couple of Shoggy Sandwiches which transfer no noise at all to the case. I'm running the pair with 7 blocks and 3 quad rads and they spend the vast majority of the time running at a very quiet 1700rpm only ramping up to around 3400rpm when the system is under load. Anything over 3400rpm makes no difference to temps.


Can you explain in more detail what you mean by a couple of Shoggy Sandwiches? which transfer no noise at all to the case?

I dont want to have to controll the speed manually. I would like to have the pc automatically controll it. How would i accomplish this? Bios im guessing.
post #17 of 36
I use Fan Xpert which comes with Asus motherboards. It has a number of pre-defined fan profiles which will control the pump speed based on the CPU temp and a user defined one which gives you the option of setting up to 3 linear or stepped speed settings. Install it and try it out, it's part of the AI Suite.

505
Edited by Big Elf - 5/14/12 at 1:52pm
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post #18 of 36
I have my pump in the top 3.5" bays suspended by zip ties. The Bay is lined with acoustic foam (see link below). I placed it below, above, on the sides and the front and back. I pretty much made a silent box out of my 3.5" bays (my pump/reservoir top is the only thing in there). I then surrounded the pump with microfiber towels to further silence it. Works like a charm.

http://www.amazon.com/Sonic-Barrier-Acoustic-Foam-PSA/dp/B0007XGKRW/ref=sr_1_10?ie=UTF8&qid=1337029011&sr=8-10
Edited by stryker7314 - 5/14/12 at 2:06pm
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post #19 of 36
Quote:
Originally Posted by jblanc03 View Post

Can you explain in more detail what you mean by a couple of Shoggy Sandwiches? which transfer no noise at all to the case?
I dont want to have to controll the speed manually. I would like to have the pc automatically controll it. How would i accomplish this? Bios im guessing.

http://www.sidewindercomputers.com/shsacokitor.html
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post #20 of 36
How exactly is the pump mounted? Is it hard mounted to your case? If so, that's your problem, not the pump itself.

Try un-mounting it from your case and having it temporarily rest on a sponge or a piece of foam, then see how loud it is.
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