Need help silencing My system

Need suggestions and or help silencing my pumps mcp-35x 2 in series see pics below.
There making a slight higher pitch whine harmonic which mostly goes away when I press or hold them So I believe its how i have them mounted.

Only thing I can think of is unmount them from the rads and soft mount them on some Foam. ? Anybody have any better idea's ?

http://lh5.ggpht.com/_8NbIoxo4dfc/TN...0/DSC_0246.jpg

http://lh4.ggpht.com/_8NbIoxo4dfc/TO...2/DSC_0250.jpg

http://lh5.ggpht.com/_8NbIoxo4dfc/TO...2/DSC_0251.jpg


Next is my Corsair AX1200 PS I have it mount on its side in the The MM case and the fans sounding dirty slight grinding/ticking motor noise anybody else have this with there AX1200 ?

how about some rubber decoupling bolts?
I am useing some old ones off a zalman hdd cooler to mount hdds and they also came with my AC pump to mount it.
http://shop.aquacomputer.de/images/p...ages/41021.jpg

hmm odd, somehow double posted,
here's how i have them under my hdds
http://www.xtremesystems.org/Forums/...1&d=1288344944

now I know why most retailers don't have GTs in stock... :)

Which holes on the housing (small ones or the ones for the top screws) are you using to mount the pumps?

What size are the holes in those brackets (also, how thick are they) and what size screws are you using?

i would go with some neoprene foam at first.
you might be able to find some thin foam washers at a hardware store so its really hidden. but if not you can go with a whole pad that the pump sits on.

OR
some silicon glue, just a little around each bold and when it dries you make your own gasket/washer and should be also completely hidden.

Inch long self tapping from hardware store with hard plastic washer which holds the screw cap into place. There mounted on aluminium mountion mod 3 1/2 drive bay brackets. Brackets are mounted on rad same way.

If I unmount them completly and lay them on several layers of neoprene ( as in the packing from my corsair ax1200) Think that would work? Iffy about them overheating though.



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the motor is only a few watts, and that heat goes into the water i though.
if the base of the motor (where the foam is going) gets pretty warm, then it might be an issue. but i doubt it will

Sorry I can't help, but could I please buy some GTs from you? :D

Quote:

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Originally Posted by [XC] Oj101

Sorry I can't help, but could I please buy some GTs from you? :D

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http://www.jab-tech.com/Scythe-Gentl...m-pr-4501.html

i just picked up my second. shipping isnt anywhere near great, but its low if your buying a few things, which is what i did.

Lmao , the gts on the rads are only part my build has 29 of them and they should be back in stock everywhere.

The problem seems to be what I have them mounted on the alu Brackets ....There amping the slight vibration they put out .

Unless somebody can Toss out a better idea , looks like i'm laying em down on Neoprene Pad. I really want a better idea so i can keep em mounted the way I have... LOL .....

Quote:

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Originally Posted by MagisD

The problem seems to be what I have them mounted on the alu Brackets ....There amping the slight vibration they put out .

Unless somebody can Toss out a better idea , looks like i'm laying em down on Neoprene Pad. I really want a better idea so i can keep em mounted the way I have... LOL .....

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sorry, can you be more specific, is the source of the noise the pumps vibrating against what they are mounted too. or is it the plate they are mounted to vibrates on something else?

Quote:

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Inch long self tapping from hardware store with hard plastic washer which holds the screw cap into place. There mounted on aluminium mountion mod 3 1/2 drive bay brackets. Brackets are mounted on rad same way.

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Both whole things vibrating.

ROFLMAO!

dude, i just counted 12 fans on the first pic... you sure it's the pump you're hearing?

if its the frame that loose, i would mount it on something solid.

I put small rubber bumpers I bought from McMaster on my DDCs and let them dance freely without being bolted down. With tubing connected with the pump, it can't go anywhere, so there is no reason to fasten it down hard.

Man, with that many rads and fans, your temp should be very close to ambient with a small delta t. Let's see what you have when it's ready to roll. Thanks!

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Originally Posted by kinghong1970

ROFLMAO!

dude, i just counted 12 fans on the first pic... you sure it's the pump you're hearing?

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Only 8 are running atm and there 840 rpm. When i have all 29 Installed should muffle it.

My ps makes more nosies.



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Quote:

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Originally Posted by mingbogo

I put small rubber bumpers I bought from McMaster on my DDCs and let them dance freely without being bolted down. With tubing connected with the pump, it can't go anywhere, so there is no reason to fasten it down hard.

Man, with that many rads and fans, your temp should be very close to ambient with a small delta t. Let's see what you have when it's ready to roll. Thanks!

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I useally leave lose on a soft foam pad but wanted to try and mount them this time.

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Proper isolation requires actual anti vibration grommets.

http://www.xtremesystems.org/forums/...4&d=1225251006

You can use HDD anti vibe grommets available at most mod shops in the quiet or silence section. Put one in each hole that your using (2 for pump and 2 for mount) and what your hearing should disappear.

Perfect WL thanks i'll order some in my next WC batch .

Quote:

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Originally Posted by Waterlogged

Proper isolation requires actual anti vibration grommets.

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which they are not, there just rubber washers,
they provide good anti-vibration, but they do not provide isolation.

the bolt still contacts the metal as it passes through the hole, it transfers all its load directly to the metal.
you can see in the pic i posted above that i have mounted my rad this way,
admittedly i have metal washers either side of the rubber, but i have removed the case side one and it made little difference, the rad fans still resonate the case.

have a look at this LINK for a few more examples of what I mean.
I have found these fittings easy to find in lots of different sizes.

I have my pump mounted on 4 of them, as provided by the manufacturer. and it is silent!
and i have re-deployed some other ones from a vertical shearing load of 4 per hdd, to a horizontal compression load of 4 per 3x hdds. and it works perfectly.

really depends if you want to reduce vibration or isolate and eliminate it entirely. :up:

but in your case, if you can hear ANYTHING over the fans then something is very wrong! :D

Quote:

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Originally Posted by Creekin

which they are not, there just rubber washers,
they provide good anti-vibration, but they do not provide isolation.

the bolt still contacts the metal as it passes through the hole, it transfers all its load directly to the metal.
you can see in the pic i posted above that i have mounted my rad this way,
admittedly i have metal washers either side of the rubber, but i have removed the case side one and it made little difference, the rad fans still resonate the case.

have a look at this LINK for a few more examples of what I mean.
I have found these fittings easy to find in lots of different sizes.

I have my pump mounted on 4 of them, as provided by the manufacturer. and it is silent!
and i have re-deployed some other ones from a vertical shearing load of 4 per hdd, to a horizontal compression load of 4 per 3x hdds. and it works perfectly.

really depends if you want to reduce vibration or isolate and eliminate it entirely. :up:

but in your case, if you can hear ANYTHING over the fans then something is very wrong! :D

---

i·so·late [v. ahy-suh-leyt; n., adj. ahy-suh-lit, -leyt]

–verb (used with object)

1.to set or place apart; detach or separate so as to be alone.
2.Medicine/Medical . to keep (an infected person) from contact with noninfected persons; quarantine.
3.Chemistry, Bacteriology . to obtain (a substance or microorganism) in an uncombined or pure state.
4.Electricity . to insulate.
5.Television . to single out (a person, action, etc.) for a camera closeup.


Um, you see the groove in the grommet?. . .that is where the panel sits, and there are little nubs inside that further isolate the screw from coming close to the metal. . . so yes, they do isolate (no metal to metal contact). ;)

http://www.xtremesystems.org/forums/...2&postcount=12

I actually get mine from Mcmaster (page 1363, style 4)

those washers just absorb some vibration,
they don't physically isolate the 2 objects they join as per your definition

Um, you see the groove in the grommet?
usually splits under vertical load, great for horizontal loading though

I don't think they would "split" but anti vibration grommets should be used with the proper shoulder screws to be really effective.

The diameter of the shoulder part of the screw must be about 0.1mm larger than the grommet center diameter. Without a proper shoulder screw the grommet and screw pair do not make good contact and are less effective.

The problem is that it's almost impossible to find these screws for the general public. So unless you're prepared to buy several thousands of them...

Finally there are many different grommet types and they are targeted at dampening different frequencies.

Anti vibration grommets actually decouple two objects, that's the whole point. I am not sure why you would say they don't "isolate".

i used them once and they split, all 4. may be due to the shoulder issue you mentioned, or maybe they were the wrong size for the panel they were in.
But they all split at the bottom so it appeared to be from vertical force.

i dont agree that they do decouple or isolate, they are just a dampener. and they only work on the vibration between the mating surfaces of the 2 objects.
the metal bolt is still coupling the 2 objects, the rubber washers are good and do help, but do not decouple.

the ones i use are 2 separate metal bolts, connected only by the rubber joint. it couples them together,as a unit and DE-couples them from themselves, physically.
exactly the same design and principle as that used in earthquake isolation for buildings.
decouple the solid foundations from the solid building with rubber mounts.

I don't think a rubber grommet on a building pylon would have the same affect.

Ok i can see both points and ways.

Creekin your missing that I'm mounting the plate to the rad your rubber nubs wouldn't work. But for mounting the pump to the plate probby be the way to go.

WL solution perfect for the rad part just finding the right peices gona be a pain lol.

Honestly there both good ideas and will work great into certain applications but both are plan B now.

I figure I better test them soft mounted loose in a neoprene pad into cutouts to hold them into place.
Mounting the second pump will be a challenge so the outlet barb is faceing up as i need it.

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yeah i see what you mean MD.
In theory, if you isolate the pump at the plate, you won't need to isolate the plate at the rad. you can just ensure it is locked up tight with spring washers or nylocks perhaps.

have you considered the Shoggy Sandwich ??
http://shop.aquacomputer.de/images/p...ages/41079.jpg

Naa the neoprene from my corsair ax1200 should do. the trick, its high quality multiple small layers glued together. Perfect for this. The black color alsop goes well :-)

If I exacto out cutouts same size and shape of items i want to "mount" out of the larger pad. I should have a stable soft mount in the large pad .

Just worried about heat dissapation which seems to be the killer if the dcc line.

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Do you mean the packing foam the psu came in?

Quote:

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Originally Posted by Creekin

those washers just absorb some vibration,
they don't physically isolate the 2 objects they join as per your definition


usually splits under vertical load, great for horizontal loading though

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If you say so. :shrug:

We're going to have to agree to disagree on this because I've used them for a number of years now and have not had a single failure. They do tend to harden a little bit after a while (years) so they need to be checked about once a year. Maybe this is why yours split, was too old to do the job, or it could have been the wrong material or a number of other small things? :shrug:

Yup, the packing foam from the psu.

Although I may order the Shoggy as I need to do a Aquacomputer order for the aquaeros and accessory anyway since sidewinders is out and doesn't have them all.

Quote:

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Originally Posted by MagisD

Yup, the packing foam from the psu.

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Good thinking 99! :up: I kept the foam from my HX1000 for almost a year trying to think of a use for it, finally gave up and tossed it.
But it is very high quality for packing foam, should work well :clap:

So found out what my problem was one of the pumps is defective.

vibrates 4x as much and is about 3x as loud and hot (the caseings actually hot to the touch)

Waiting to hear back from swiftech about options now.

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I'm starting to sense a pattern here..... :rolleyes:

And what pattern might that be?

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Just seems to be a few Swiftech related issues lately,
I am sure it is just a side effect of their popularity and market share.
I AM NOT BASHING Swiftech!!!
I have never owned any Swiftech kit!

I am just commenting on how I have noticed a few unrelated issues,
but every time, Gabe or someone offers sensible help and the problem is fixed. :)
As I have found personally with AC and EK, sh*t happens, but good companies fix customers problems asap.

I repeat,
I AM NOT BASHING Swiftech!
:D

Ya its no big. 20-30 individual peices of swiftech gear and this is first bad one I had. But customer service is why I allways buy swiftech if it fits the need.

I messed up my Xt backplate/screws and they just sent me out new ones.

In the kit I sold a friend stuffs been going strong over 3 years now.

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@MagisD,

Glad you found the problem. This may have been what you were planning, but for the future, (like Creekin said) if you want to eliminate vibration, you need to isolate the component, i.e. no direct mechanical fastening. This is the principle behind the shoggy sandwich. I've done the same thing with 2 pieces of 1/8" acrylic and a very soft neoprene-like pad. The idea is that you want to create an additional degree of freedom such that the vibrating component can move independently of the supporting structure. Of course, in doing so, you loose your conductive path to the chassis for heat. On one mcp355, I decided to remedy this with some pieces of aluminum flashing between the pump and the isolator. I built a crappy heat sink that worked well. My pump had wings and It actually looked pretty good imo. One day I may start taking pictures. Anyway, good luck. I've been following your build log and love it. The name is suiting, definitely extreme man.

@Creekin,
Swiftech is awesome. They're the knee in the curve for WC.
I'd venture a guess that they're one of the largest producers of WC stuff also. As you said, if there are problems, it seems all you have to do is call or write an email - although I've never had one. (I own a ton of swiftech stuff)

So my main problem is not the pump. Its the mb i have capacitor whine from up around the ram caps. Only when mb powered up and in windows.

The pump misslead me dammit. Disguised where the whinning noise was coming from.

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That sucks are you going to rma it?

Probby its under warrenty, just pita taking wb off. Anybody besides me wouldn't even notice it its right on the edge of hearing.

When it was in my 800D never heard it at all i think it doesn't likw my ax1200 ps.

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Quote:

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Originally Posted by MagisD

i think it doesn't likw my ax1200 ps

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tried a diff psu to confirm?
maybe faulty psu not mobo

My creative titanium caused those problems with an old mobo of mine. Changed everything, then finally found out that somehow the soundcard in my system was the one causing the problems.
It didnt cause problems in other systems. Somehow the mobo reacted on that soundcard, try moving your hardware arround as in different distances. might help you find the real problem!
good luck :)