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Thread: How loud is too loud for a Carputer?

  1. #1
    Newbie ComputerDoctors's Avatar
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    Question How loud is too loud for a Carputer?

    Quick question, what do you guys think an acceptable dB level is? I'm not talking about music....just having the system on w/ fans.

    I found a fan that has less than 20dB and it will be in my dash. Ya think that might be too loud? what could I compare that to so I could actually hear something @ 20dB?

    Thanks,
    Amit
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  2. #2
    FLAC evandude's Avatar
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    I had a couple of vantec stealth fans, which are rated at like 21dB. They were pretty quiet. I don't think you'll get a good idea of how loud a fan is going to be unless you listen to some similar fans in person. Of course, if you add a speed control to it you can easily turn it to whatever speed makes it "quiet enough" for your application. With any amount of road noise, I don't think you'll really be bothered by the noise of a 20-21dB case fan, and probably not hear it at all.
    But don't take it from me! here's a quote from a real, live newbie:
    Quote Originally Posted by Viscouse
    I am learning buttloads just by searching on this forum. I've learned 2 big things so far: 1-it's been done before, and 2-if it hasn't, there is a way to do it.
    eegeek.net

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    Newbie ComputerDoctors's Avatar
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    Maximum Bitrate seanz0rz's Avatar
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    i dont hear the 92 mm fan in my console unless i have the engine off. its rated at just over 30 i think.

    60db is about normal conversation
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    Low Bitrate schpanky's Avatar
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    Quote Originally Posted by ComputerDoctors
    The zalman's quote is over-ambitious, don't let the numbers fool you, it's really freaking loud, so much so that it makes my head hurt. TT is also known for fooling with their numbers, but with a 130mm fan, you really get away from that annoying pitch that little fans have. According to the review on that page, there is some "annoying humming", some people prefer the hum over the whining, I prefer the sound of my own thoughts, opposed to any sound from a fan, so ymmv
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  6. #6
    Newbie ComputerDoctors's Avatar
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    I know...the Zalman SAYS its 20 dB in quiet mode...so that is something to look at

    and the TT is a big fan...
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  7. #7
    Low Bitrate schpanky's Avatar
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    Quote Originally Posted by seanz0rz
    i dont hear the 92 mm fan in my console unless i have the engine off. its rated at just over 30 i think.

    60db is about normal conversation
    Don't worry about ratings, get a fan that is known to be quiet and you'll be all set.

    Panaflo's M1A and L1A lines are DEAD silent, regardless of raiting, and their H1A's are high performance (aka.. loud) but can be trimmed properly with voltage reduction (7v H1A = M1A)
    1995 Ford Mustang Convertible
    DSATX | Shuttle XPC SN41G2Bv2 | 619GL-70NP | CF 1.6 (which is still unusable in the car!)

  8. #8
    Variable Bitrate numbers's Avatar
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    It is my opinion that if I can hear it while sitting in the car with the engine off, it's too loud.

  9. #9
    Low Bitrate schpanky's Avatar
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    Quote Originally Posted by ComputerDoctors
    I know...the Zalman SAYS its 20 dB in quiet mode...so that is something to look at

    and the TT is a big fan...
    Definately stay away from the zalman, it's nothing more than a gimmick, if you are looking for fans that are quite, you're going to want to buy Panaflo's!
    1995 Ford Mustang Convertible
    DSATX | Shuttle XPC SN41G2Bv2 | 619GL-70NP | CF 1.6 (which is still unusable in the car!)

  10. #10
    Low Bitrate schpanky's Avatar
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    Here's where I usually pick up my panny's:
    http://www.jab-tech.com/Panasonic-Panaflo-c-220.html

    Remember, keep away from the H-series if you want to keep quiet
    L1A's are DEAD silent, M1A's are pretty quiet but you can make them dead silent with voltage regulation, and H1A's are pretty loud
    1995 Ford Mustang Convertible
    DSATX | Shuttle XPC SN41G2Bv2 | 619GL-70NP | CF 1.6 (which is still unusable in the car!)

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