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Sleeping + cooling : what to buy?
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Sleeping + cooling : what to buy?
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2nd September 2003, 10:54
| #1 |
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|  20decibel doesn't sound that loud. I'm going to buy some new fans, what noise level is considered 'unhearable' I'm thinking of letting my rig run 24/7, but I sleep in the same room. I'm going to use a lot of noise isolating mats, but they don't do miracles. the slightest background noise is going to keep me awake I think :/ so what fans should I choose to make my rig unhearable (so silent you can sleep next to it)? I'm gonna need 2 120mm fans (top, on radiator), 2 80 mm's (one PSU, one back) and a 92mmk; the PSU is an enermax 350W @Bosw8er: move to new thread (with other replies) please! |
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2nd September 2003, 14:03
| #2 |
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| Do note that the Specs say 20db. Just like a HD is 120GB but actually isn't. (1000 <=> 1024) I've got 5 of these, and I can vouch that these things definitly can keep you awake for some time on 12V. 1) manufacturers measure sound at a certain distance and with unrestricted airflow. And even then they tend to flex the measurements. 2) my case is a chieftech with the metal fan grills removed, this is pretty free airflow, but I estimate more of a 30-35dba. Definitly NOT unhearable. Silent should be below 25, with unhearable below 20. This is in EFFECTIVE db and not spec db. |
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2nd September 2003, 14:11
| #3 |
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| what's the noise level at 5volt, a few metres away from it? |
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2nd September 2003, 14:13
| #4 |
| Member  Join Date: May 2002
Posts: 3,711
 | I always put foam inbetween case & fan. The mentioned papst fan NGML is thus almost inaudible. :grin:
__________________ "Think of how stupid the average person is, and realize half of them are stupider than that." |
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2nd September 2003, 14:27
| #5 |
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Posts: n/a
| almost... at what voltage? they're 11€ at funcomp, I think I'll order some there mod: papst NGL · Leistung: 33,0 m³/h (ca. 19,5 CFM) · Geräusch: 12 dB(A) even more quiet! |
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2nd September 2003, 14:49
| #6 |
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| ARCTIC COOLING Fan TC-1; 6€ a piece Fan Dimensions: 80 (l) x 80 (w) x 25 (h) mm Fan Speed: 1400 RPM - 3000 RPM Airflow: 14.7 - 31.0 CFM (je nach Drehzahl) Noise Level: 10 - 32 dB (je nach Drehzahl) less expensive, tempcontrolled (handy when it's hot, no rheo needed) and as silent. can still be put at lower voltage and tempsensor removed! |
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2nd September 2003, 15:32
| #7 |
| Member Join Date: May 2002
Posts: 3,711
| Zalman CNPS7000A-AlCu Over all, if your requirements include quiet operation, and you don’t plan on any extreme overclocking endeavors, you can hardly go wrong by purchasing a Zalman CNPS7000A-AlCu. Zalman combines great looks, great performance, near silent operation, and superior workmanship into a package that’s hard to pass up.
__________________ "Think of how stupid the average person is, and realize half of them are stupider than that." |
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2nd September 2003, 16:34
| #8 |
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| don't forget that if u have 2 fans of 20 each the total DB will be something of 22-23 db for every fan u should ad 2-3 db so 5 fans would make around 30 db if they all are 20 db fans off course |
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2nd September 2003, 17:02
| #9 |
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Posts: n/a
| true, 5 10decibel fans will give something like 15decibel. it'll be fine with some noise-isolation |
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2nd September 2003, 18:18
| #10 |
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Posts: n/a
| 5 10 db fans wil give 20 db, for each fan 2-3 db needs to be added |
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