Date: Mon, 3 Nov 2003 14:46:02 -0500 From: "rob copsey" <robc@execpc.com> To: freebsd-alpha@freebsd.org Subject: Re: Power Supply for Dec Alpha 164LX? Message-ID: <200311031946.hA3Jk2JJ004875@mail5.mx.voyager.net>
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Although I do not express or imply any guarantee as to the outcome; it would likely be easier and less expensive to crack open the PSU and replace the fan with a superior component. Usually these are 12Vdc. fans, however, it could be Vac. depending upon its country of origin. The fan should be labeled to indicate this. I would opt for an "NMB" true ball bering fan as I've had these going continuously for like 5 yrs. in a PC. You can find them at electronics catalog houses (i.e. Newark) or bastardize one from a good quality a PC PSU/case. Make sure that the replacement component has the same Voltage and Current ratings. If you you match the specifications for the original fan, you will likely end up with a fan that has the same output and thus the same ability to cool the PSU. The operation is simple, just make certain to observe the correct polarity, use butt crimp connectors to avoid having to solder to the PSU board. Also, make certain that the fan is oriented to blow in the same direction that the original one did. Before cracking open your PSU make sure to unplug it for a few hours. This will ensure that any residual charge has dissapated from various capacitors. So, you make the call. I've been running one of these "NMB" fans in a Pentium 120 since 1998. No problems and whisper quiet, with nothing more than an occasional cleaning. > > Hi, > > My Alpha has a power supply with a very loud fan. I'd like to replace it > with a quieter power supply. I remember that there is somethign > differrent about the pwer supply that is needed for the Alpha. Does > anyone know where i can buy a power supply that will work with the alpha > 164LX and might be less loud than the original power supply? > > Thanks for any info. > > John > > > _______________________________________________ > freebsd-alpha@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-alpha > To unsubscribe, send any mail to "freebsd-alpha- unsubscribe@freebsd.org" > -- CoreComm Webmail. http://home.core.com
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