DIY Cooling my DSL-2640T ADSL Broadband wifi Router
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This is the continuity of my previous posts My Modem Gone Up in Smoke! and Inside My Linux DLink G-604T Broadband Modem/Router. Seems my local vendor finally replaced my faulty G-640T after eight month use with a new broadband wifi/router with same capabilities albeit different model (G-2640T). The new model is smaller, has shorter antenna and generate more heat than its predecessor.
I hate going back and forth from computer shop and my house to claim warranty, I prefer to have a fully working hardware that I can truly rely on. Thus acting on advice from my blog readers (especially Azmeen and Kucau I decided to improve the air ventilation for my broadband modem.
Because I dont have an air conditioner, I have to improvise in order to keep my modem cool and ventilated, I removed the outer casings of the modem and attached an ordinary 12volt casing fan on top of it with a strong glue. I powered the fan with a general purpose low voltage AC/DC adaptor ('walkman' adaptor) to make sure the modem stays cool during operation.
The Result
Without fan, the modem capacitors heat up so fast (approx 30 minutes) that it could burn up my fingers. The attached casing fan dissipate heat quickly resulting the modem circuits felt as cold as water.
Here's a photo of my modification


Here's a link to my other sloppy DIY work :p
Tags: diy, adsl, router, wifi, dlink, broadband, modem, streamyx
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November 30th, 1999 at 12:00 am
I found in my website log, apparently somebody trying to find out how to connect to Streamyx broadband using the latest DLink 2640T. Since I own one, I decided to share my settings to enable you to connect to Streamyx. First point your favorite browser to http://192.168.1.1/, enter your username and password (default: admin | admin) Web configuration user interface will be displayed, click WAN
June 12th, 2007 at 10:31 am
Mohammad Hafiz bin Ismail: DIY Cooling my DSL-2640T ADSL Broadband wifi Router Mohd Irwan Jamaluddin: RHEL 3.9 Has Been Released! Kuching OSC: Forum has been updated !! Colin Charles: Soup has never tempted me more - a memorable Heinz ad Lee Chin Sheng: raWPacket LiveCD - progress
June 12th, 2007 at 3:31 pm
In the name of all that’s holy; that’s cool man! In both literal and figurative sense of the word :)
By the way, is it noisy?
June 12th, 2007 at 3:34 pm
I adjusted the parts so it doesn’t have friction with each other, so apart from its menacing look, it is dead quiet
June 12th, 2007 at 6:27 pm
is that a new hovercraft of yours? pretty cool i say
June 12th, 2007 at 8:20 pm
First time aku jumpa benda macam ni. Perghhh!
June 13th, 2007 at 2:28 pm
menarik untuk dicuba pada modem aku.. haha
June 19th, 2007 at 2:05 pm
[...] common._load(); dh.control._load(); var escapedTitle = ‘Mohammad Hafiz bin Ismail: DIY Cooling my DSL-2640T ADSL Broadband wifi Router’; var escapedUrl = ‘http://blog.mypapit.net/2007/06/diy-cooling-my-dsl-2640t-adsl-wifi-router.html’; function dhWriteFramesPage() { document.open(); document.write( “n” + “n” + ” ” + escapedTitle + “n” + ” n” + ” if (parent != self) {n” + ” // only look at the base parts of the urln” + ” var pLoc = parent.location.host + parent.location.pathname;n” + ” var sLoc = self.location.host + self.location.pathname;n” + ” if (pLoc == sLoc)n” + ” parent.location.href = self.location.href;n” + ” }n” + ” n” + “n” + “n” + ” n” + ” n” + “n” + “n” + ” Your browser does not support frames. Click here for page.n” + “n” + “n” ); document.close(); } function dhInit() { dh.control.createControl(); if (dh.control.control.haveBrowserBar()) { dh.control.control.openBrowserBar(); window.open(’http://blog.mypapit.net/2007/06/diy-cooling-my-dsl-2640t-adsl-wifi-router.html’, “_self”, “”, true); return; } var embedObject = document.getElementById(”dhEmbedObject”); if (embedObject && embedObject.readyState && embedObject.readyState == 4) { embedObject.OpenBrowserBar(); window.open(’http://blog.mypapit.net/2007/06/diy-cooling-my-dsl-2640t-adsl-wifi-router.html’, “_self”, “”, true); return; } dhWriteFramesPage(); } Mohammad Hafiz bin Ismail: DIY Cooling my DSL-2640T ADSL Broadband wifi Router [...]
June 26th, 2007 at 4:16 am
[...] I found in my website log, apparently somebody trying to find out how to connect to Streamyx broadband using the latest DLink 2640T. Since I own one, I decided to share my settings to enable you to connect to Streamyx. [...]
July 5th, 2007 at 10:19 pm
[...] DIY Cooling my DSL-2640T ADSL Broadband wifi Router [...]
July 6th, 2007 at 11:26 pm
[...] DIY Cooling my DSL-2640T ADSL Broadband wifi Router [...]
September 23rd, 2007 at 9:42 pm
[...] I found in my website log, apparently somebody trying to find out how to connect to Streamyx broadband using the latest DLink 2640T. Since I own one, I decided to share my settings to enable you to connect to Streamyx. [...]
October 31st, 2007 at 5:48 pm
thinking of fitting the same cooling system to my route…thats cool maybe using a smaller fan and tapping pover from the same suppy cable from ac unit…
November 30th, 2007 at 11:11 pm
haha u r crazy dude.
btw ya this modem seem to be very hot.sux aload..i left it for weeks and suddenly LAN(wired) functionless.no idea. i tried to connect the LAN cable, no light was turned on.ftw..
now i just use wireless function
March 12th, 2008 at 8:51 pm
Nice work Dude!
I was just thinking to do something similar with my WiFi ADSL Router.
I have UTStarCom ADSL boradband router from BSNL and it heats up quite a bit!.