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<pre>"I'm not making life easy for myself am I?!"<br><br>If this is a marine application, I would avoid using the 1U case, altogether if possible, <br>and give it more air, and mount the mobo vertically so whatever heatsink you use, has both <br>natural convection/conduction/air flow through the case, with the psu at the bottom, <br>and the hard drives mounted on their own heatsink ally sheet<br><br>Consider also spray varnishing the board, to seal against corrosive elements, <br>use electrically conductive paint on all connections [except gold] and avoid the copper heatsink, <br>especially near an ally one, <u>unless you varnish all exposed copper</u><br> - they tend to use copper for shiny appearance through perspex sided cases<br>in a marine environment that would turn to verdigris very quickly<br> - corrosion eats components, voraciously....<br>I have a 120x100x55high ally h/s on a skt478 2.4Ghz single core fanless, which gets pretty damn warm!<br><br><b>Cutting corners on costs on marine kit often puts sailors on rocks!!</b><br><br>You only have one life and you never know if that piece of kit will be called upon to keep you alive, <br><br>in emergency, using a 3G modem, for example, when your vhf fails.....<br><br>Maybe time for a re-think/re-plan on your strategy??<br><br>Hope you don't find this too alarmist....<br><br>Aitch :)<br><br>====================================================<br><br><br></pre><br><br>> To: kent@mailman.lug.org.uk<br>> From: alex@alexlayfield.force9.co.uk<br>> Date: Wed, 23 Sep 2009 16:04:42 +0000<br>> Subject: Re: [Klug-general] Custom ATX sized heatsink<br>> <br>> It does seem as if the core2duo can be passively cooled, but yes, with a large heatsink.<br>> <br>> I went on to the Akasa website, where they have a pretty Cu one, only 1u high but needs some air movement.<br>> <br>> The hardware needs to be pretty tight, as it's for marine application.<br>> <br>> ##Si sachets may be useful.<br>> <br>> Sealed unit will become an oven if I don't pipe out to a case heatsink.<br>> <br>> What I'm after is a company that can mill such custom heatsinks.<br>> <br>> Most companies I've seen only do smaller ones.<br>> <br>> Maplins do one that's 150mm x 100mm...<br>> <br>> I need to know the max TDP for the whole shabang, really.<br>> <br>> Apparently not a good idea to share heatsink between Chipset & CPU, so perhaps two of those 150mm chaps could work.<br>> <br>> Another issue I have is different metals touching each other in damp salty air (corrosive).<br>> <br>> One solution would be to use Au throughout. But I'm trying to keep costs low.<br>> <br>> I'm not making life easy for myself am I?!<br>> <br>> <br>> <br>> /A<br>> <br>> _______________________________________________<br>> Kent mailing list<br>> Kent@mailman.lug.org.uk<br>> https://mailman.lug.org.uk/mailman/listinfo/kent<br> <br /><hr />View your Twitter and Flickr updates from one place - <a href='http://clk.atdmt.com/UKM/go/137984870/direct/01/' target='_new'>Learn more!</a></body>
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