Quiet DIY OC'ed Pentium D 830 System

jmke · 28th March 2006, 12:48

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

jmke · 28th March 2006, 12:50

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

Sidney · 28th March 2006, 14:30

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.

28th March 2006, 17:29

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.

28th March 2006, 12:48	#1
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	Quiet DIY OC'ed Pentium D 830 System 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 __________________

28th March 2006, 12:50	#2
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	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 __________________

28th March 2006, 14:30	#3
Sidney Member Join Date: Mar 2004 Posts: 15,738	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. __________________ lazyman Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II

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