Can i pull 5V off the WRT54GL board for a fan?

Discussion in 'Modding Forum' started by Vezado, Jun 22, 2009.

  1. Vezado

    Vezado LI Guru Member

    I know the general opinion seems to be that fans are overkill, but i've lost 2 routers in the hot climate i live in and i think giving them a little cooling is a worthwhile attempt to prolong the router life. I'd rather not have a loud fan going at full speed, so my thought was to run a 12v fan on 5v. It should be enough to have decent airflow without sounding like a small plane.

    Is there anywhere on the 54GL board that I can use for the 5V power?
  2. peter_m

    peter_m Addicted to LI Member

    Have you considered a small heat-sink? I would put a very small drop of thermal grease in the centre and in then in the four corners an even smaller drop of crazy glue. It worked great for my old Dlink Di-624.

    It doesn't get quieter then passive cooling.


    EDIT: read this thread and make sure you read the last post by Toastman. He's reliable.
  3. Vezado

    Vezado LI Guru Member

    Yeah, i decided a headsink was adequate for the 54GLs i have, especially after hearing Toastman's comments. He's more than qualified on the subject, especially considering the number of installations he's done in our local oven known as Bangkok.

    However, I'm going to be setting up an Asus WL-500G premium v2 soon, and including a hard drive in the case as well for samba shares. Given the added source of heat and the hotter processor, not to mention extending drive life by keeping the temps low, i would really like to include a fan on that project.

    So for the WL-500, can i just pull 5V from the other internal usb? The fan is only .15A at 12v, so that should only be .0625A at 5V right? Either are far below the .5A limitation of USB.

    I ran the 12V fan from my laptop's usb port and it worked great, extremely quiet but enough airflow to make a big difference in cooling. (usb to 5v plug adapter used! i'm not dumb enough to jam wires in my usb sockets)
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