Recent content by cloudkat

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Thinking of Liquid Cooling! Please Help!

First let me start by saying if you have not already bought that piece of ....er...i mean, if you have not bought that Thermaltake case yet, then DON'T. It is garbage. With that said, if you are going to be spending 4 grand on just graphics cards, then you obviously have the money to invest...
- cloudkat
- Post #13
- Mar 28, 2011
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

LOL.... I thought I was the only one who did that. Back a while, a local PC shop was going out of business and I bought up all his cables. So I had a monster stock of rounded IDEs. So I figured this one out quick. I ended up with like 50 brand new ones for only about $0.75 each. As for SATA...
- cloudkat
- Post #27
- Mar 11, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

Why would you break it down to dBA per CFM, then try adding it up again?? The only reason I can see for this is if you are under volting your fan by use of either a fan controller or some other method. But if that is the case, as you know, or should know, that brings in a whole different set...
- cloudkat
- Post #24
- Mar 10, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

You obviously missed something in the article. If you have the two fans you talk of, and they both have the same ratio but one has a lower dBA, then the lower dBA one would be the better of the two as long as its CFM was sufficient to do the job you need it to do. Here is what I said in the...
- cloudkat
- Post #20
- Mar 10, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

That is the cool thing about it being YOUR PC. You can do whatever you wish with it. I never said that by having your optical at the top it would cause it to fail. All I was pointing out was that it gets hotter in that position and it blocks up the "hot air zone". So by moving it you can not...
- cloudkat
- Post #19
- Mar 10, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

If there is more than a 10dBA difference, yes it does. Please see the links that I referenced in the above post and read for yourself. Just keep im mind that there are many different variables. But let's just assume that we have a 12'x12'room that is totally soundproof. In the middle of that...
- cloudkat
- Post #17
- Mar 10, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

Thank you. And remember that this is ALL it was ment to be.....the basics. Agreed. There are many other factors involved here. But again, this was not meant for people like you who already have a strong understanding of fans and acoustics. This is just a (hopefully) good starting point for...
- cloudkat
- Post #15
- Mar 10, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

Let me clarify my last reply a little. Even the best quality, low RPM fan will vibrate. Even if it is such a small amount you would not ever be able to know it without professional testing equipment. What I am trying to say in my last reply is that a good fan will vibrate so little, especially...
- cloudkat
- Post #8
- Mar 9, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

I have not seen any definite testing on this to say for 100% certainty, but the concept would seem valid only in specific cases. Such as if you have a small, high RPM fan, it would vibrate, thus leading to the belief that rubber grommets and/or bolts would quieten it down. But on bigger, low RPM...
- cloudkat
- Post #7
- Mar 9, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

I know that a lot of this may seem very small and/or petty. But how many of us have done crazy amounts of work just to get that extra 10-20 points on our benches, or drop and extra degree or two in heat. How many of you have voided the warranty on your high dollar CPU by lapping it? Voided the...
- cloudkat
- Post #5
- Mar 9, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

Now that you know how to pick good fans (using the CFM/dBA ratio), let?s look at what to do, and not do, with them. Understanding case thermodynamics has become almost a necessity in the modern modding community. With PC components running hotter, more modders putting stuff in their PC...
- cloudkat
- Post #4
- Mar 9, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

OK, only in specific set-ups would you have ALL your case fans rated the same. To figure out your total sound of many fans that have different ratings all you need to do is use the chart below and start adding them up. To use the chart, first find your highest rated (or loudest) fan. (If...
- cloudkat
- Post #3
- Mar 9, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

Well, now that that is over, let?s get to the ?meat? of this thread. When looking around and comparing fans, there is a very simple formula to come up with its CFM/dBA ratio. This will tell you which fan has the best ?air flow-to-noise? ratio. Simply divide the dBA into the CFM. Thus a fan...
- cloudkat
- Post #2
- Mar 9, 2008
- Forum: Cases & Cooling
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Guide to fan noise and case thermodynamics

Hello all, I was directed here by one of your regulars. I look forward to becomming part of this very active community. The reason I am posting here is because I have written the following article and posted it on a couple of other forums, and was asked to post it here. I hope you enjoy it...
- cloudkat
- Thread
- Mar 9, 2008
- Replies: 53
- Forum: Cases & Cooling

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