Tornado or Panaflo

[mrflushysheaven]

Hi i'm in a bit of a dilema so i'll post this before i go to sleep. i'm about to build my first rig and have about half of the parts already. i'm buying an antec 1000amg plusview case and am undecided on the fans. so my question is how much of a performance difference will i see if i get 5 tornado fans instead of 5 panaflo 40cfm 80mms. i know noise is a big issue so that's why i wanna see how much of a difference is between the two. thanks i can sleep easy now knowing that help is on the way.

[Twisted]

for basic case cooling, tornados are overkill, just use the panaflos, the are great at case cooling

[Kosmic]

Yea, panaflos all the way. A case with 120 mm front and back fans would be ideal, and the 120mm panaflo L1As are very quiet. Also, a rheobus is a good idea for when you want to quiet down the computer for just doing e-mail, web surfing, etc.

[Ulfar]

For case fans get the panaflos, tornadoes are specifically for cpu & major air moving.

[John Cena]

I had the Thermaltake Xasier Tower Case

I replaced every fan(20cm silent tt fans) in there with a 80mm Tornado. Closed the case up, put the vantec controller at full blast and powered on. First thing I smelled was a burning smell. Figures out 7 tornados on the controller had burned out one of the controllers channels.
So I hooked them all to the powersupply and bieleve me, IT WAS LOUD, like a lawn mower. And I only noticed about 2 celcius in temp decrease. But i returned all 7 and went to water cooling :)

I think you should choose the panafalos.

[mrflushysheaven]

cool thanks you guys made my decision much easier. should i get like 1 tornado tho just for the window blowing over my video card? i'm planning on ocing my 2.4 mo hopefully to 3.4+. i'll probably get a tornado for my sp-94 too. what do you guys think? and if i was gunna get the tornados i would get the nexus fan controller anyway.

[Darkfold]

Good idea. Dont expect to be able to do anything (sleeping, listening to music etc) in the same room as a full powered tornado :D

[Karnivore]

I would at least get one Tornado so you have some idea how ungodly loud it is running full tilt:eek:

[mrflushysheaven]

hahah ok i think i'm getting one tornado just to see and then 5 sunon 50 cfm fans. 40 cfm seems a little low to me. how loud is 40 db?

[Karnivore]

Someone else can probably explain better, I'm half deaf from years of shooting guns without hearing protection:rolleyes: so I'm a poor judge, Tornadoes aren't half bad in this case;)

here is some common comparisons for you...

Common sounds
Noise level (dB
Effect

Boom Cars
145
Beyond threshold of pain (125 dB)

Shotgun firing
130

Rock concert (varies)
110-140

Thunderclap (near)
120


Stereos (over 100 watts)
110-125
Regular exposure of more than 1 minute
Risk permanent hearing loss (over 10dB)


Chain saw
110
No more than 15 minutes unprotected
Exposure recommended (90 - 100 dB)

Symphony orchestra
110

Snowmobile
105


Jet fly-over (1,000 ft)
103

Garbage truck/cement mixer
100


Farm tractor
98
Very annoying level at which hearing
Damage begins (9 hours)

Newspaper press
97

Subway, motorcycle
90


Lawnmower, food blender
85-90
Annoying, interferes with conversation

Diesel truck (40 mph)
84

Average city traffic noise
80


Garbage disposal
80
Intrusive, interferes with telephone use

Vacuum cleaner, hair dryer
70


Inside a car (loud engine)
70
Comfortable (under 60 dB)

Normal conversation
50-65

Refrigerator humming
40


Whisper
30
Very quiet

Rustling leaves
20


Normal breathing
10
Just audible

[mrflushysheaven]

hmm another question. when using the fans the db's combine right? or is it just the loudest one you hear.

[Karnivore]

Originally posted by mrflushysheaven
hmm another question. when using the fans the db's combine right? or is it just the loudest one you hear.

Actually an interesting question, I would think the loudest simply covers all others.

[shrae]

Decibels are scaled logarithmically such that a 10pt increase signifies a doubling in volume. So you can't just add the decibel numbers to get a "resultant" decibel.

Having two fans will certainly be louder than just one, though. There are also many externalities, such as the relative position of the fans, as well as pitch difference, etc., which can all contribute to differences not only in decibel ratings but the "noise" produced independent of decibels.

[Karnivore]

Originally posted by shrae
Decibels are scaled logarithmically such that a 10pt increase signifies a doubling in volume. So you can't just add the decibel numbers to get a "resultant" decibel.

Having two fans will certainly be louder than just one, though. There are also many externalities, such as the relative position of the fans, as well as pitch difference, etc., which can all contribute to differences not only in decibel ratings but the "noise" produced independent of decibels.



Hmm, I don't think it would be a big difference, of course dependent upon spacial relation, and if it were same fan. A quick read does indeed support your statement though, Interesting, going to research a bit more. Thanks for the info Shrae :thumbsup: hehe, off on a tangent...