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post #4441 of 7170
Quote:
Originally Posted by Dragonheart View Post

The PSU intaking from outside air won't make any real difference though compared to taking internal air. So it's a moot point.

I tend to think that having an extra outlet affects the internal air pressure, especially if you are slowing down the case fan as much as possible. This is an important factor when using a passively cooled GPU, I needed to keep the airflow nice and even over the cooling fins. I also feel that any warm air from the case may have caused the temperature controlled fan in the PSU to spin higher than necessary which raises the noise level even though I changed it for a quieter fan, I wanted to reduce fan noise to an absolute minimum. As you well know, air coming from the GPU can be very warm so allowing it to go through the PSU could be a bad idea if you want it to be quiet. With this case I have a system that is no louder than my own breathing and that is absolutely crucial to me and it is due to the layout and features that it has. It also runs very cool indeed, I don't think I could have achieved such a small, neat, quiet and fast system with any other case of this size.

It's horses for courses really, you only have to look at the wide variety of systems that people have built into this case to see how versatile it is but it does have it's limitations and so not perfect for everyone.
Edited by Indigo340 - 5/31/13 at 12:23pm
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post #4442 of 7170
My system is about as loud as you describe. No louder than my own breathe, and my PSU is intaking internally. They don't get hot enough frankly unless they're under a heavy load to cause any major issues to airflow. There's no 'hotbox' testing inside a standard case environment. My PSU facing inside is actually QUIETER than having it face outwards. Because I can hear the tiny whine it makes. Barely. But it's there.

I suppose the passive GPU thing might make a difference.. But my Asus GTX 670 DCUII is dead silent and even under a gaming load my system is barely louder than it is in idle. (Of course during a gaming scenario sound won't matter much anyway up to a certain degree as I'll be listening to the game/my headphones regardless).

Either way I don't think it matters on many modern quality PSUs. Even under load I could never hear my HX-650 in my older i7 930/GTX 580 system.

I DO! However have a question! Did those rubber fan mount grommets on your build make a big enough difference for the front 180mm fan to be worth the pain and suffering to get the front panel off? Lol.

I've also got my HDD (previously the loudest thing in my case) locked up in the 5.25 bay with a Nexus Double Twin HDD anti-vibration mount. Along with my SSD just above that.
Edited by Dragonheart - 5/31/13 at 8:11am
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post #4443 of 7170
Quote:
Originally Posted by Dragonheart View Post

I DO! However have a question! Did those rubber fan mount grommets on your build make a big enough difference for the front 180mm fan to be worth the pain and suffering to get the front panel off? Lol.

This is such a good question. I hate that front panel. I have it held up by only 4 screws now because all 6 were unnecessary and 2 of them were impossible to get to.
    
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post #4444 of 7170
Quote:
Originally Posted by Dragonheart View Post

.

I DO! However have a question! Did those rubber fan mount grommets on your build make a big enough difference for the front 180mm fan to be worth the pain and suffering to get the front panel off? Lol.
.

The Silverstone fan does not really benefit from rubber mounting pins IMO, any vibration noise is usually hidden by the noise of the blades chopping through the air. I used a Phobya 180mm fan with a resistor to reduce the speed to 450rpm and also rubber mounting pins, the rubber pins did make a difference with the Phobya fan but it's hardly noticeable and debatable whether it's worth the hassle. I used an AKASA PSU rubber gasket and fan mount kit but had to find plastic washers to stop the rubber pins slipping through the huge holes on the fan, that was the hardest, most time consuming part. I also shaved the mushroom heads down slightly so they don't interfere with the filter on the front.

The PSU rubber gasket was a PITA to fit and definitely not worth the hassle for this case, it helps to reduce coil whine being transmitted through the case though. I also covered the inside of the case with double layer sound dampening material and again there is a difference but only to those with very sensitive hearing. I have not yet got round to using sound dampening material behind the front panel, it's not that important but it will be the final touch.
When fans get older, they tend to vibrate a little more so hopefully the rubber pins will help to keep things quieter for longer.

Overall I feel there is an improvement in noise reduction with all this in place and that makes me feel happy, getting the front off is not much trouble, you just need a very slim handled screwdriver with magnetic tip. Putting it back on is the hardest part, I just lay the front panel flat on a carpeted floor and lower the rest of the case onto it. Put in a couple of the easier to access screws but don't tighten them down all the way until you have them all in place.
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post #4445 of 7170
Yeah I'm running the stock silverstone fan via fan controller. Around 450 RPM in idle. I turn it up to around 650 for gaming. My CPU fan is a GT AP-13 so even at 1150rpm it's dead silent so it's a non factor. I wouldn't think the noise dampening would make too huge a difference no.. I'd never personally bother with it. But I suppose if you're after silence; it all adds up in the end! Between the rubber grommets and foam and extra touches. Maybe individually they might not make a huge difference but collectively it could be a good few dbs quieter overall.

Though you have given me a few ideas for noise isolation.. Not that I feel I need it atm.. I thought I was being OCD about it before. But I guess there are other silence extremists out there like yourself who are even more dedicated to it than I. I salute you! XD
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post #4446 of 7170
The one thing that I consider to have made the most difference is the dense heavy backing material of the sound dampening foam. The foam itself is practically useless in this case as the only fan inside is a Be Quiet Shadow Wings on the CPU cooler which is totally inaudible below 600rpm and has a max speed of 700rpm, it usually runs at around 400rpm but the heavy backing material is perfect for damping down the panel vibrations. It gives the case a nice heavy 'quality' feel too when you tap on it.

I spend a lot of time at my PC so noise gets very irritating, I like to know that I have done as much as possible to keep the noise to an absolute minimum even though most people wouldn't even notice the difference.

I found that the Stock AP181 fan 'droned' a lot below 500rpm and maybe some rubber pins would help reduce it somewhat. At standard speeds (700 & 900) I didn't find they helped though as the fan is noisy enough to drown out any vibration noise.
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post #4447 of 7170
Can't say I've got the issue of that noise at less than 500. Though I do remember having some issues at trying to run it at less than 400. Probably doesn't like it. Too low a voltage.

I Will say the one thing I disliked about the tjo8 was that it's slightly tinny. My antec p180 mini was far superior in overall build quality. But to be fair cost a lot more comparably. I don't think I'd bother with foam though. Might try the rubber grommets on the front fan though. It could use a dusting anyway.

Thanks for your insight smile.gif. This thread and other builds constantly give me new ideas about bettering my personal computer experience.
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post #4448 of 7170
Quote:
Originally Posted by Dragonheart View Post

Can't say I've got the issue of that noise at less than 500. Though I do remember having some issues at trying to run it at less than 400. Probably doesn't like it. Too low a voltage.

I suspect it has more to do with how different mobo's provide the PWM voltage, mine is a cheap mobo and almost certainly uses cheap parts and voltage controllers. I was hearing a kind of 'shunting' sound from the coil as I lowered the rpm's, it also resonated through the panel that the fan mounts on so my first reaction was to blame the fan which is probably a little unfair to be honest. A higher quality mobo would probably not cause this issue and I have not heard anyone else mention it.
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post #4449 of 7170
Headphones!! biggrin.gif
post #4450 of 7170
Oh. I run mine off a fan controller meaning it's getting mostly a full 12v off a Molex. I do remember even with my mobo header having issues now that I think about it..
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