Modding the ASUS RT-AX88U with a cooling fan

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5 Responses

  1. Sandy says:

    Thanks for this article! Try keeping it to suck air out from the bottom instead of the top. That should get your router running even cooler.

  2. xel says:

    I did the same with a 40x40x10mm fan, but instead of push config I have made a pull config, so dust won’t get pushed into the router.

  3. Ken Ng says:

    Thanks for sharing your experience! I actually did a push configuration because I was planning to get a dust filter. This way, with the dust filter, the idea is that only dust free air is pushed into the router, theoratically speaking. I was afraid that a pull configuration may pull dust into the router from below.

    How is the router on your pull configuration, is it relatively dust free?

  4. Richard says:

    Getting my RT-AX88U this week, have already aquired an 80mm AC Infinity USB fan with speed contol for top of router as you correctly did.
    A teardown view of this router shows the heat sinks on the top of the board, not the bottom. I believe Asus designed the case for convective airflow through the front vent, across heatsinks and out the top vent – sucking from the top will enhance the designed air flow and not buck it.
    Forcing air into the bottom might cool some, but really just blows against the bottom of the circuit board.
    Af far as dust is concerned, filters just create problems with extra maintence and inevitable neglect. Pulling air out the top does not avoid dust getting in, as air out means air in somewhere else.
    It is better to take the router outside every now and again and blow it out.

  5. Ken Ng says:

    Thanks for sharing your finding!

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