Instructables
Picture of WRT160N Fan Mod
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Router: Cisco/Linksys WRT160N (Rev.3) - DD-WRT v24 (Build 14896 firmware)

While this is a very crude mod, my WRT160N was running a bit hotter than normal with the DD-WRT firmware (antenna output cranked up to 85mw). So, a simple mod with a 2" fan soldered to the power connector a 1.75" hole, and some temporary pedestals until I go to the hobby shop.

The temperature was getting up to 90 degrees and while the router has cooling ports on the top and is perferated on the bottom plate, it's not very efficient on the cooling side. With the fan mounted below (pulling air out of the base), I measured a 21 degree F cooler temp on the body of the router with the fan installed and operating.

Overall, definitely a plus when modifying these routers with better and more adjustrable firmware and (soon to come) external antenna's to handle the extra power output.



 
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Step 1: Open the WRT160N and cut a hole

Picture of Open the WRT160N and cut a hole
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You'll have to open the router (voiding the warranty) with a T8 Safety-Torx driver (the one with a hole in the tip). Once you remove the four screws on the bottom, it pops apart by simply lifting the top cover from the base (a dime can get you started if it's tough). Gently lift the board out of the way - no need to disconnect the antenna's as there's plenty of slack in the wires. Once opened, grab a 1.75" (1 3/4") hole saw and cut a hole in the mesh on the bottom plate. Run the fan wires though the mesh for ease of installation.

Step 2: Solder the fan wires to the factory power connector

Picture of Solder the fan wires to the factory power connector
These are the exact locations to solder the power (red) and ground (black) wires from the fan.

Step 3: Reassemble and glue the fan

Picture of Reassemble and glue the fan
I used a cold-glue gun for this and laid two beads around the fan. There's not enough room to screw the fan down (space in between the PCB and bottom cover), but the glue works well and you can't see it anyway.
firstdw11113 years ago
I had to use a T10 torx, my wrt160n was 10.00 on ebay for parts or not working and once I took the cover off the wireless light came on and it is working fine, these seem to have a turn on then reboot unit required problem
hwally3 years ago
I have a 12 volt .82 amp fan do you think this will work alright and not draw too much power?