{"id":23,"date":"2005-07-08T16:24:27","date_gmt":"2005-07-08T20:24:27","guid":{"rendered":"http:\/\/clay.blogdns.net\/?page_id=23"},"modified":"2020-03-22T00:49:48","modified_gmt":"2020-03-22T04:49:48","slug":"modding-the-hsf","status":"publish","type":"page","link":"https:\/\/claymccauley.info\/index.php\/articles\/modding-the-hsf\/","title":{"rendered":"Modding the HSF"},"content":{"rendered":"<p><em>I wrote this article back in 2005 when the Athlon XP was current. It?s very outdated, but some of the basic concepts still apply. I?ve left it here as a historical artifact in the hopes that someone finds the information useful?<\/em><\/p>\n<p><strong>Fans &amp; Ducts<\/strong><br \/>\nSo what&#8217;s all this about ducts you ask? There&#8217;s a basic problem with the way almost all HSF units are made. The fan is mounted directly on top of the fins of the heatsink. So, you say, what&#8217;s the big deal? The problem with this is the hub, or center of the fan.<\/p>\n<p><center><a href=\"\/pics\/box\/cck6040h.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"\/pics\/box\/cck6040h.gif\" alt=\"Vantec CCK6040H\" width=\"200\" height=\"193\" \/><\/a><\/center>The hub on most fans is at least 1\/3 the diameter of the entire fan. Since it sits directly on top of the heatsink, this creates a dead spot, and right at the point where it&#8217;s the hottest, the center. Inserting a duct between the fan and the heatsink reduces the pressure and gets rid of the dead spot. This allows more even cooling across the entire heatsink.<\/p>\n<p><center><a href=\"\/pics\/box\/duct-close.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"\/pics\/box\/duct-close.gif\" alt=\"Duct, close-up\" width=\"220\" height=\"171\" \/><\/a><\/center>So, now we have a more efficient heatsink. That&#8217;s great, but I need to knock off more than a couple of degrees celsius. In comes the <a href=\"http:\/\/www.frostytech.com\/articleview.cfm?articleID=1169\">Vantec Tornado<\/a>. An average 80mm case fan will push anywhere from 20-35 CFM. (Cubic Feet [of air] per-Min) The tornado boasts up to 100 CFM! That&#8217;s a lot of air!! There is a catch however, at full speed this fan sounds like a jet engine. Since I don&#8217;t need the full cooling force of this monster most of the time, I&#8217;m using the CoolerMaster Aerogate II fan controller to reduce it&#8217;s speed (and noise) to a tolerable level. My heatsink is a Vantec model CCK-6040H (the high-speed noisy version) which is an all copper HSF with a 60mm fan that spins at 6800RPM and moves nearly 37 CFM. Not bad to start, but it&#8217;s not enough to take my AthlonXP 2500+ up to 2.2Ghz (3200+) and keep it cool enough to make me comfortable. (like I said.. I&#8217;m conservative..)<\/p>\n<p>With the addition of a 60mm to 80mm funnel, the 45 degree angle duct and the Tornado fan I&#8217;ve knocked off 10 degrees celsius, and that&#8217;s at the unit&#8217;s lowest speed (~3200 RPM). Increasing the speed results in an immediate reduction in heat, and would probably allow this chip to be pushed a little harder. We&#8217;ll see, maybe I&#8217;ll get the guts to go a little higher. For now, here are a few post-op pics of the new and improved HSF&#8230;<\/p>\n<p><center><a href=\"\/pics\/box\/fans.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"\/pics\/box\/fans.gif\" alt=\"Stock 60mm vs. 80mm Vantec Tornado\" width=\"140\" height=\"109\" \/><\/a> <a href=\"\/pics\/box\/duct-noglow.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"\/pics\/box\/duct-noglow.gif\" alt=\"Duct-mod installed\" width=\"139\" height=\"108\" \/><\/a> <a href=\"\/pics\/box\/duct-glow.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"\/pics\/box\/duct-glow.gif\" alt=\"Lights-out\" width=\"140\" height=\"109\" \/><\/a> <a href=\"\/pics\/box\/case-postmod.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"\/pics\/box\/case-postmod.gif\" alt=\"Case, post-mod\" width=\"140\" height=\"109\" \/><\/a><\/center><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I wrote this article back in 2005 when the Athlon XP was current. It?s very outdated, but some of the basic concepts still apply. I?ve left it here as a historical artifact in the hopes that someone finds the information &hellip; <a href=\"https:\/\/claymccauley.info\/index.php\/articles\/modding-the-hsf\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":31,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-23","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/claymccauley.info\/index.php\/wp-json\/wp\/v2\/pages\/23","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/claymccauley.info\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/claymccauley.info\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/claymccauley.info\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/claymccauley.info\/index.php\/wp-json\/wp\/v2\/comments?post=23"}],"version-history":[{"count":6,"href":"https:\/\/claymccauley.info\/index.php\/wp-json\/wp\/v2\/pages\/23\/revisions"}],"predecessor-version":[{"id":741,"href":"https:\/\/claymccauley.info\/index.php\/wp-json\/wp\/v2\/pages\/23\/revisions\/741"}],"up":[{"embeddable":true,"href":"https:\/\/claymccauley.info\/index.php\/wp-json\/wp\/v2\/pages\/31"}],"wp:attachment":[{"href":"https:\/\/claymccauley.info\/index.php\/wp-json\/wp\/v2\/media?parent=23"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}