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Old April 21, 2009, 09:15 PM
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Quote:
Originally Posted by Bomberman07 View Post
thanks all, I'm very tempted to wc my rig, but was wondering about the "silent part"

currently I have;

3 x Noctua NF-S12 120mm 17dba each
1x Antec tri-speed 120mm 25 dba
1x Antec tri-speed 140mm 27 dba
1x Xigmatek S1283 fan 120mm 27.2 dba
And the stock powercolor cooler on my 4890 27-44 dba

160 dba. Not really silent, but not loud at all, Anyway, I don't care that much about silence. I just want lower temps to oc my cpu even higher :) My e8400 can go up to 4.15 on air. Also, I've started folding so my "idle" temp is now 50c
Sound doesn't add linearly, actually. and when you have differences of 10db or more, you can generally disregard the smaller value. So (assuming the manufacturer values are correct), you basically have a noise level of up to 44db, thanks to that video card.
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Old April 21, 2009, 09:33 PM
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Old April 21, 2009, 09:40 PM
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Quote:
Originally Posted by Bomberman07 View Post
thanks all, I'm very tempted to wc my rig, but was wondering about the "silent part"

currently I have;

3 x Noctua NF-S12 120mm 17dba each
1x Antec tri-speed 120mm 25 dba
1x Antec tri-speed 140mm 27 dba
1x Xigmatek S1283 fan 120mm 27.2 dba
And the stock powercolor cooler on my 4890 27-44 dba

160 dba. Not really silent, but not loud at all, Anyway, I don't care that much about silence. I just want lower temps to oc my cpu even higher :) My e8400 can go up to 4.15 on air. Also, I've started folding so my "idle" temp is now 50c



Alright since i have almost the same chip as you and basically i was going for the silent approach as one of my reasons to watercooling.


This is what i use

Swiftech 320 rad
Swiftech 655 Pump
6 Noctua Nf-p12 Fans * This is key the fan can also be turned down more but im running 6 of them and its pretty dam quiet. My Zalman 9700 was a monster for sound.

Swiftech blocks for both videocard and Cpu.


The NF-P12 work better on rads then the S12 they cost a bit more but just wait for a sale.



Now is it really worth it???? Right now prices are wayy too inflated why not get a reallllly good cooler and slap a Noctua Nf-p12 on it or another more silent fan. Since youve already bought Noctua you know their not all show so i think that would be a better alternative. And if your videocards making noise theres silent coolers for that too that dont hinder performance like the Zalman Vf-900.
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Swiftech Mcp655/ MCR-320-QP/ 6X Noctua NF-P12'S/ Swiftech Apogee GT/ Swiftech Mcw-60/ Swiftech Micro-Res.

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Old April 21, 2009, 11:04 PM
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Originally Posted by ChuckleBrother View Post

What gets me is the sloshing sound you sometimes get from the res.
My Bitspower ultra watertank res is bad for this, if I am just doing 2d, as soon as the gfx fan kicks in it deadens it.
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Old April 21, 2009, 11:07 PM
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Originally Posted by Dazmode View Post
Antec fans are really crappy ones. I remember replacing them with Scythe F series and it was good upgrade towards silence.

In my subjective opinion my watercooled HAF is way more quiet then 900 on air.
S-Flex F series ftw I have 3 of these babies on my triple rad and I can run them down to 900RPM and so close to silent and still moving enough air to cool my gpu and cpu.
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Old April 22, 2009, 12:24 AM
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Most people don't use water cooling for silence, but rather for cooling efficiency. However, getting quiet water is fairly easy, and it is definitely quieter compared to the high-speed fans on today's video cards.

You need to get the right pump, since some of them are very loud. Ceramic bearing pumps are generally quietest: Eheims are good, but tough to come by in Canada; the CPX-1 and DB-1 are low-end, but quiet; CPX-Pro is probably the best you can come by in Canada in terms of noise:performance radio, short of Eheims.

Then, you need to make sure you mount it in a manner that it will not rumble around. Some rubber padding is nice, submersible pumps are also good, since the water will help dampen the sound. Finally, there's the rad and fans. You can get a fanless radiator, although for higher loads, you might want to get multiple fanless rads, or the really big ones. But, if you want to run it with fans, there are plenty of fan roundups that detail which fans have the greatest static pressure at low noise levels; look them up at XtremeSystems, I think they have a few there. Oh, and fully bleeding the air out of the loop goes a long way in reducing those bubbling and sloshing sounds, although for some products, it's just because of the way it was designed.
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Old April 22, 2009, 05:37 AM
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Quote:
Originally Posted by Dazmode View Post
Antec fans are really crappy ones. I remember replacing them with Scythe F series and it was good upgrade towards silence.

In my subjective opinion my watercooled HAF is way more quiet then 900 on air.
how many fan on your rad? those noctua are quite good for air cooling, what about water cooling?
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Old April 22, 2009, 07:21 AM
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Quote:
Originally Posted by Bomberman07 View Post
how many fan on your rad? those noctua are quite good for air cooling, what about water cooling?
I had a couple NF-P12's on my rads and didn't like them. I found when two are placed side by side they make an odd whining sound. I read others had noticed this too but it seems to be rare. OTOH I replaced the fan in my PSU with one of those Noctua's and it is totally silent.

I know they are supposedly crappy fans but the fans that came with my cosmos are really quite silent at reduced RPM's, I still want to try some other brands though.

Quote:
Originally Posted by S_G View Post
the CPX-1 and DB-1 are low-end, but quiet;
Not sure I'd call them "low end" as that implies that they are poor quality (but I think I know what you meant). They are low output but just fine for a single block loop. Presently I use a couple of them in my cosmos and yes they are silent (and I'm really picky). A higher output pump may net me a few extra degrees and a few extra MHz but I have the suspicion the gains would be minimal... and I enjoy the silence.
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Last edited by biff; April 22, 2009 at 07:29 AM.
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Old April 22, 2009, 07:26 AM
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I agree that wc is as silent as the fans you use. The pump noise is negligible and easily quieted. WC has the potential to be much quieted than air.
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Old April 22, 2009, 07:40 AM
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when folding my gpu fan spins at 37% wich is "loud", if I drop it under 30% I can't even hear it.

is better to cool a cpu and gpu on two loop? or one is-can be enough? Thinking about a triple rad.
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