silence is devine

[thorilan]

when i build a new comp i will want it to run very quiet.

of coarse it will be water cooled but if im gonna get the best rad/core im also gonna want the quietest fans for them.
i hear paps are great but some of the fans i see are at like 30db and i want to get the sound down into the teens or low 20s

i know lower speed means lower noise but it also means lower cooling too so i want to find a balance.

i was thinking about putting a couple of 20cmf paps fans in the case and on shrouds for core but i dont know if it will do the trick. im not planning on OCing just want great cooling with no noise for todays hot procs . ( ok so i might OC just a little but not much)

oh for the limiting factors .
i dont have the ability to shop around where i live or do any kind of real work on the system parts so i have to go pretty much mainstream orders that ship to japan

anyways my idea is to get a large aluminum case like a lian li (i will probly go dualy )
get tygon tubing
get a Radiator
get a waterblock ( probly a whitewater or one of igors jobbies)
get a pump ( need GOOD pump that is quiet and have no clue about which is quiet )
get a reseviour ( want something that is cylinder shaped and clear because it looks kool)
get the fans

ok now i saw about a year ago a website somewhere hat let you listen to the fans on your PC. does anyone remember what site that ws and if there is one for pumps also ?

and what are your recommendations for pars ?

 

[jackal2513]

quiet is not that simple

i started with the basic innovatek kit but i am slowly changing this to get better cooling. Curenntly using 2 extra BI Micro rads so that I can run very slow papst fans like you say which are very very quiet. The thing you must remember is that one of these papst fans against 1 radiator won't give you amazing temps... maybe with a Dtek heater core + whitewater you may be ok cos its good kit but then you run into all sorts of other problems when you realise that you have zero airflow through your case.

First, you'll have to remove your DVD/CD ROM/Burner from the case cos they are damm noisy. Then you'll need to decouple and sound insulate your hard drives but they'll get hot so really you need to watercool them. Same goes for the GPU and the northy as well if there is very low airflow in the case. But you'd be very hard pushed to cool all of that lot just using a <30 cfm 18db papst fan on a rad.

Thats why im using 3 rads and then plan to add a second WC system with a very very large rad to deal with the HD's, GPU and NB.

So thats the first thing to sort out ... how you gonna watercool everything with teh smallest number of fans and using slow very quiet fans. Also, bear in ind there are other compnents on the Moboard that need attending to and also do something with your ram if airflow is very small.

After that you then have the problem of the PSU. At the mo, this is the loudest part of my system and to be honest im not sure which direction to take. There are no watercooled PSU's on teh market, Im no way trying to make my own, fanless PSU's are lower power ratings and also require case air flow and finally so-called "quiet" psu'd still ahve fans some of which get faster under load and are not that much quiter than a normal PSU.

As a start i would recommend the Papst 120mm fans (dont get teh wrong ones though ... these are very deep and heavy 5 spoke fans, see: http://www.kustompcs.co.uk/product.php?view=2553)

As for WC kit you wont go far wrong with the stuff you mention. Myabe consider the DTEK core as they are selling the whitewater as well i believe. As for pumps, my eheim 1048 is very quiet once decoupled but im not sure about the 1250 which is the one you'll prolly want for real high flow.

Of course since you are starting from scratch i woudl seriously consider passive WC by having a huge copper tubing rad somewhere outside or in cold water ? Or maybe an underground tank with a huge reserve of water. I personally dont like the idea of not having everything self-contained but if its silence you want then this is the way to go 'cos you won't need rads and fans etc..

 

[gizxmo]

i had similar thoughts quiet but great cooling
my idea is to buy 4x80mm case fans glue them all together solder the wires they have together run them through a vantec nexus and be able to adjust speed/cooling
i was lookin at some top motor making 41cfm at 36dba i belivev but they also have some 20dba and 28cfm i want the louder ones as i will use them at less then rated power
and i am probably gonna make a shroud so they pull over the radiator
a dtek heater core
hope this helps it is an idea and it will be a few weeks to a month before i actually have it all together and tested

 

[Holsum]

As Jackal Said it isn't that easy, many have tried it and from there experiences they have only come close.

Good Luck!!!

 

[jackal2513]

prosilence fanless PSU's are coming to the UK in 2 weeks.. i'll most likely be going that route.

Once the hard drives are in the new 2nd WC system the loudest part of my system will be papst fans... x2 120mm and x2 80mm

then i'll look at ways of reducing their noise (athough they shouldnt be making much noise)

 

[Seal]

Yeah ive done the same, got my comp to run almost silent. My setup is zalman northbridge heatsink.

1/2 decent waterblock
eheim 1048
black ice pro
single 120mm fan running 4V (yes, 4V!)

I have 2 fans in my psu too and they are 80mm and running on 5V.


The loudest thing in my system is my hard drive and it drives me mad . There arent any decent hard drive - watercooled silencing enclosures around yet, im still waiting.

 

[jackal2513]

There arent any decent hard drive - watercooled silencing enclosures around yet, im still waiting.

OH YES THERE ARE !:

 

[emericanchaos]

i don't think you need a water cooled plate near a HDD to keep it cool. just putting a peice of plate metal between it would be enough go keep it cool. if you want total silence than i could see encasing it like that.

just my .02

 

[jackal2513]

if youve got hardly any case airflow then IMO you do need to WC ... at the mo my hard drives are only partially covered and still quite noisy and they already get pretty hot

 

[LuckyBob]

The rig I'm working on will have the HDs encased in ~1" MDF, air sealed, and the rest of the computer being in a 1/2" MDF shell, with a decoupled 1/2" inner shell. I'm planning on bringing all the hot water outside the case to a D-Tek heater core with one (maybe two) 120mm fans on a rheostat. With my current rig I only need a Panaflo low speed 120mm at about 5.5V to keep my CPU perfectly within reasonable temps.

How 'bout a Hydor pump for your next setup? That's what I'm looking into, since it seems to be the quietest (and least heat-producing) brand I've run across as of yet. Having the pump in another 1" of MDF and decoupled inside and out should fix any noise issues, I suspect, but I'm kind of worried about pump heat. Any comments regarding this with the L30?

 

[gizxmo]

ok i am not going that silent i amthinking a tad bit more silent then now would be nice but not entirely necessary
as my biggest fan is a ducted 120 that pushes about 140cfm so it is decently loud etc

 

[Seal]

OH YES THERE ARE !:

Ive seen that one around somewhere before, was thinking of buying it but the barbs only come in 1/4" (i use 1/2")and also it is aluminium which makes me a bit nervous about certain battery effect rumors etc... (and yes i do use water additive)

 

[jackal2513]

lucky bob,

once the 1048 is decoupled properly i find it completely inaudible

how do you cool your GPU btw ? Also, aren't you worried about NB and RAM and some of teh chips on the board. Watercooling these under normal circumstances is a overkill I agree but with negligible case airflow I definitely will feel happier if they are cooled.

 

[Seal]

decoupled? how do you do that? i can hear a low pitched humm coming from mine, and no it isnt vibration.

 

[jackal2513]

see this thread:

http://forum.oc-forums.com/vb/showthread.php?s=&threadid=190166&highlight=eheim


see the pics halfway down


this is the way i did it and the pump is completely silent. Note that the power cable does not touch the case AT ALL, this is enough to transfer vibration. I think you'll find that if you are getting a noise then it IS vibration ... you might not be able to feel it but its transferring onto nearby surfaces and being amplified by parts of teh case. Aluminium side panels are particularly vunderable.

If you suspend the pump in mid air you wont be able to hear it ... so any noise must be vibration

if you still have problems then you could always submergee it but this transfers more heat to the water