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.
Loudest case. Ever...
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Loudest case. Ever...
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.
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JazzJackRabbit
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Whoa.... retro!
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.
And no, those weren't fun to be in the same room with, either.
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.
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mr. poopyhead
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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
Somebody good at this stuff redo my calculations and tell me I'm wrong
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
Somebody good at this stuff redo my calculations and tell me I'm wrong
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 dBSylph-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
Somebody good at this stuff redo my calculations and tell me I'm wrong
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.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
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peteamer
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Are 2 fans noisier than 1 blowing the same CFM?McBanjo wrote:Something like that, MikeC tested it a while agoe. Forgot where he posted it tho
Is this the post you're refering to?
Pete
Re: Loudest case. Ever...
I know those fans..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.
http://www.newegg.com/Product/Product.a ... 6835221001
Code: Select all
RPM 15000 RPM
Air Flow 24 CFM
Noise Level 55.5 dBA
Re: Loudest case. Ever...
15000RPM? That's just... sick, even for such a small fan
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
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.
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.