Loudest case. Ever...

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kater
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Loudest case. Ever...

Post by kater » Fri Apr 06, 2007 5:20 am

Image

I'm sure the cooling is superb, but it sure soudns like a Harrier taking off. Vertically. In a small room. Empty, with no furniture & stuff to dampen the sound.

tehfire
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Post by tehfire » Fri Apr 06, 2007 6:51 am

Good God...

Haha and I suppose all the 40mm fans on the side are just for those extra dB's, huh?

Gotta have the biggest numbers, regardless...

McBanjo
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Post by McBanjo » Fri Apr 06, 2007 7:35 am

Thats just scary...

jaganath
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Post by jaganath » Fri Apr 06, 2007 8:10 am

the military should look into this as a form of sonic torture

JazzJackRabbit
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Post by JazzJackRabbit » Fri Apr 06, 2007 10:17 am

tehfire wrote: Haha and I suppose all the 40mm fans on the side are just for those extra dB's, huh?
That's a server case, those 40mm fans at side are from redundant power supplies.

fri2219
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Whoa.... retro!

Post by fri2219 » Fri Apr 06, 2007 10:54 am

That case looks a lot like some of the old Sun360's and MicroVAX's we had in my laboratory...

And no, those weren't fun to be in the same room with, either.

kater
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Post by kater » Fri Apr 06, 2007 2:19 pm

My brother works in IT dept in a mid-size company, and where he and other guys sit and work, are some servers. Huge beasts, noisy as hell, 19" racks from floor to ceiling, redundant PSU's, lotsa *real* noisy gear. Whenever he visits me or we talk about quiet computing, he has this funny look in his eye that says it all. And whenever I offer to mod his home PC or just try to tell him to go get an aftermarket CPU cooler or try to fanswap his PSU, he wears that smirk and says that he considers his PC a truly silent machine. No wonder. Even when you take a totally stock cooled PC it is virtually silent when compared to the gross behemoth in his office. I envy him. I mean, he is trully happy with his machine in terms of noise. I think I'm not going to tell him my Barracuda in Scythe QD bothers me now, as it is the loudest component in my rig. I have this feeling he won't get it. Oh, and he has two little boys who make so much ruckus that his PC just disappears. On the other paw, I don't think people should be working in the same room where servers sit. I mean, we are now in EU, we have modern OHS regulations and ISO etc. It's bad for hearing. I'm gonna ask him about that.

spookmineer
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Post by spookmineer » Fri Apr 06, 2007 4:13 pm


mr. poopyhead
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Post by mr. poopyhead » Fri Apr 06, 2007 10:05 pm

spookmineer wrote:Case Made of Fans

:shock:
HAHAHA.. that's GREAT!!!!

can we get a review of that case?!?!? hahaha....

psiu
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Post by psiu » Mon Apr 09, 2007 2:45 pm

mr. poopyhead wrote:
spookmineer wrote:Case Made of Fans

:shock:
HAHAHA.. that's GREAT!!!!

can we get a review of that case?!?!? hahaha....
I have a mental picture of MikeC's eye just...twitching...when seeing that case. :shock: :wink:

aristide1
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Post by aristide1 » Mon Apr 09, 2007 5:02 pm

psiu wrote:
mr. poopyhead wrote:
spookmineer wrote:Case Made of Fans

:shock:
HAHAHA.. that's GREAT!!!!

can we get a review of that case?!?!? hahaha....
I have a mental picture of MikeC's eye just...twitching...when seeing that case. :shock: :wink:
Its not too bad, they are all running at 7 volts. :shock: :shock: :shock:

Sylph-DS
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Post by Sylph-DS » Tue Apr 10, 2007 12:26 am

This can hardly be correct, but according to what I was once taught, the second should add 3dB, the 3rd and 4rd another 3dB, 5-8 another 3dB, 9-16 another 3dB, 17-32 another 3, 33-64 another 3. Since there's 70 in there, I'll stop there.

So, according to that, it's only as noisy as one fan + 18. Now, seeing how he bought seventy, I would immagine him buying the cheapest he could find, so I'd say, that lead to at least a 25db fan, even at 7v. So, then we'd be looking at 25 + 18 = 43dB, this fails to take into account however, the turbulence. And I can immagine the turbulence to be quite bad in that case. I have no idea exactly how much noise the turbulence would give off, but lets say I'll make a wild guess and end up with a total of 50dB. I'm having a hard time believing this myself, so I'm probably very very wrong :D

Somebody good at this stuff redo my calculations and tell me I'm wrong :P

McBanjo
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Post by McBanjo » Tue Apr 10, 2007 4:11 am

Sylph-DS wrote:This can hardly be correct, but according to what I was once taught, the second should add 3dB, the 3rd and 4rd another 3dB, 5-8 another 3dB, 9-16 another 3dB, 17-32 another 3, 33-64 another 3. Since there's 70 in there, I'll stop there.

So, according to that, it's only as noisy as one fan + 18. Now, seeing how he bought seventy, I would immagine him buying the cheapest he could find, so I'd say, that lead to at least a 25db fan, even at 7v. So, then we'd be looking at 25 + 18 = 43dB, this fails to take into account however, the turbulence. And I can immagine the turbulence to be quite bad in that case. I have no idea exactly how much noise the turbulence would give off, but lets say I'll make a wild guess and end up with a total of 50dB. I'm having a hard time believing this myself, so I'm probably very very wrong :D

Somebody good at this stuff redo my calculations and tell me I'm wrong :P
That is incorrect below 30dB (I think). Below that then that "rule" is incorrect. 2 fans on 18dB isn't showing any raise on the dB-meater while if you calculate it with a formula then it rasises the dB
Something like that, MikeC tested it a while agoe. Forgot where he posted it tho :(

Sylph-DS
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Post by Sylph-DS » Tue Apr 10, 2007 4:49 am

McBanjo wrote:That is incorrect below 30dB (I think). Below that then that "rule" is incorrect. 2 fans on 18dB isn't showing any raise on the dB-meater while if you calculate it with a formula then it rasises the dB
Something like that, MikeC tested it a while agoe. Forgot where he posted it tho :(
That would make sense. Never quite understood how two sources of 1dB could add up to 4dB.

peteamer
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Post by peteamer » Tue Apr 10, 2007 9:57 am

McBanjo wrote:Something like that, MikeC tested it a while agoe. Forgot where he posted it tho :(
Are 2 fans noisier than 1 blowing the same CFM?


Is this the post you're refering to?



Pete

Sylph-DS
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Post by Sylph-DS » Tue Apr 10, 2007 10:08 am

Haha, I don't think I'll ever really understand how this works, but still, interesting stuff :D

Cerberus
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Post by Cerberus » Wed Apr 11, 2007 10:36 am

Hey someone finally figured out how to cool the 680i SLI chipset!

Shukuteki
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Re: Loudest case. Ever...

Post by Shukuteki » Wed Apr 11, 2007 11:39 am

kater wrote:I'm sure the cooling is superb, but it sure soudns like a Harrier taking off. Vertically. In a small room. Empty, with no furniture & stuff to dampen the sound.
I know those fans..

http://www.newegg.com/Product/Product.a ... 6835221001

Code: Select all

RPM  	15000 RPM
Air Flow 	24 CFM
Noise Level 	55.5 dBA
:o :shock:

jaganath
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Post by jaganath » Wed Apr 11, 2007 2:51 pm

Air Flow 24 CFM
Noise Level 55.5 dBA
Wow, 55dB for 24CFM? that's gotta be the worst dB/cfm ratio ever.

Sylph-DS
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Re: Loudest case. Ever...

Post by Sylph-DS » Thu Apr 12, 2007 1:00 am

Shukuteki wrote:

Code: Select all

RPM  	15000 RPM
Air Flow 	24 CFM
Noise Level 	55.5 dBA
:o :shock:
15000RPM? That's just... sick, even for such a small fan :roll:

Funny how according to my calculations earlier, one of these fans at full speed makes more noise than than the entire case made of fans together :D

kater
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Post by kater » Thu Apr 12, 2007 11:06 pm

See those legs on the case? They've got special spiky pegs, like for the tent, that go into the floor. Otherwise, the whole case would be pushed to the front if all those li'l screamers spin up to 15k RPM :lol:

mellon
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Post by mellon » Fri Apr 13, 2007 2:17 am

Well, that is a server system and not really meant for an environment with humans in it.

That case is probably not bad at all compered to a couple of 1U 19" rack cases considering that those are basically flat wind tunnels with n (n = ~10) small fans and large areas of undampened metal chassis.

Overall, that picture is fun to make fun of but the system doesn't really compare to SPCR type systems any more than a rack server would.

s_xero
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Post by s_xero » Fri Apr 13, 2007 2:40 am

lol - 24 CFM is pushed almost inaudible <18dB(A) by the 120mm-fans:P

I want to have those fans, just so f@#$%&g awesome:
Spinning like hell (it might as well create a disturbance in the gravityfield:P) and no airfLOW

geforce1
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Post by geforce1 » Fri Apr 13, 2007 5:45 am

Wow. And I thought my two NMB 9,000rpm screamers were loud... I certainly don't want to listen to those 15k RPM little monsters. Unless of course you're planning on double-overclocking a Vanta LT...

nutball
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Post by nutball » Fri Apr 13, 2007 8:35 am

s_xero wrote:lol - 24 CFM is pushed almost inaudible <18dB(A) by the 120mm-fans:P
Try fitting a 120mm fan in a 1U rack-mount server ;)

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