I just ordered that fan from newegg. On Tue, May 15, 2012 at 8:54 AM, Justin <email@example.com> wrote: > In my post on lemon there is a photo showing where to tap 12V. The fan > linked in my write up runs at 8dBA at 12V and comes with little rubber > grommets that pull through the mounting holes once you bore them out > slightly, so the fan is suspended on the rubber and does not easily couple > its vibrations to the chassis. At 10CFM it should be able to turn over the > air inside the case several times per minute, which should be a vast > improvement over the original convection cooling. In a quiet room it is > inaudible. > > Justin > > On May 15, 2012, at 9:57, firstname.lastname@example.org wrote: > > > > > On 2012-05-15, at 14:45, Gerrit Heitsch wrote: > > > >>>> The most quick'n dirty approach that worked surprisingly well was to > >>>> drive 12V fans with 5V (or 6-7 when 5 was too little to give the fan > >>>> good spin) and still having enough airflow to keep the temperature at > >>>> reasonable level with enormously reduced noise. > >>> > >>> Yeah, connect the fan between the 12V and 5V rails, and if it fails in > >>> short circuit, it will take all the 5V circuitry as collateral damage. > I > >>> am not sure if that has ever happened to anyone, though. It would not > be > >>> a big loss on PC hardware, but we are talking C= valuables here. :-) > >> > >> If you want to be on the safe side, grab a LM317, set it up as an > adjustable regulator and hook it between +12V from the PSU and the fan, > then adjust to the desired noise level. Should be possible for less than 2 > Euros if you don't have all the parts handy already. > > > > Exactly. If 5V was not enough (which wasn't that often as it might seem > to be) I always derived desired voltage from the original 12. > > > > -- > > SD! > > Message was sent through the cbm-hackers mailing list > > Message was sent through the cbm-hackers mailing list > Message was sent through the cbm-hackers mailing listReceived on 2012-05-16 00:00:26
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