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Quiet DIY OC'ed Pentium D 830 System

@ 2006/03/28

Encouraged by this success, I started to think about how to vent the CPU heat directly from the case, separating it from the motherboard heat. I figured if I could encapsulate most of the Ninja and direct the hot air out the back, the motherboard cooling would improve. First I removed the back case fan, which I was no longer running anyway. Next I built a square duct with flaps to cover the top and bottom of the Ninja and route the air flow to the back vent. I lined the back portion with foam, thinking that ought to reduce the CPU fan noise

Comment from FireTech @ 2006/03/28

Quote:

The sound meter shows readings as low as 23 dB, but these are neither repeatable nor believable. Taking measurements closer to the fans so that readings were well above 30 dB was really the best I could do, but to get readings that high I had to be only a few inches away from one of the fans

My analogue dB meter (for setting up my home theatre0 is niminally rated at 60-129dB but actually reads down to 50. Scale seeting minus 10dB.

Comment from Sidney @ 2006/03/28

I have been puzzled by this kind of claims for years. The only thing I could say or ask "When was the last time you have your hearing tested by a professional?".

Go see a doctor on a regular basis. Yes, they are expensive because there are no cheap doctor

Having said that, I like the work described, channeling air to do its best always yields good result.

Comment from jmke @ 2006/03/28

I'm wondering how he got <30dBA results from a dBA meter who's specs list 30-100 range...
http://cemsz.manufacturer.globalsour...GetProduct.htm

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