View Full Version : Case Mod: Replace internal weights with a bottom-mounted central brass foot.

Michael Thompson
02-01-2014, 02:18 PM
Hello all,

This is a mod I've been thinking of and finally got around to doing.

A little fan noise was noted when playing for a while or watching videos, and also that the spaces between the rubber feet actually restrict the airflow a little.
I am a hardware hacker from way back so this is what I've done so far:

I removed the 2 screws and all but one of the 5 internal weights that are stacked up in the center of the case intended to give Ouya a bit more stability. Removing the weights gets that mass of steel away from the PCB for better airflow/cooling. It also gets all that metal away from the WiFi and BT radios which is bound to help signal quality too, though I sit too close to my router to know for certain.
I cut off the mounting posts for the internal weights using a pair of flush-cutting pliers and simply glued the last weight in to secure it, as it sits well below the PCB and is unlikely to interfere with the radios now.

The brass foot is a 3/16" thick brass ring that I grabbed from the awesome industrial scrap I have access to at work. The diameter is spot-on perfect to fit on the bottom of the case, exposing all of the vents around the outside of the ring for better airflow.

One side of the brass ring I covered in double-sided 3M VHB tape, the other with fuzzy Velcro strips. I used a pair of scissors to trim around the edge.
From there it was just a matter of centering up the foot and sticking it to the bottom of the case.
(anyone familiar with 3M VHB tape knows that thing ain't going anywhere now!)

The brass foot gives the appearance of one of the feet on a piece of home AV gear and puts the weight even lower for stability.
The Velcro acts as a pad and can be used for a mounting aid if necessary.
Since the stock rubber feet sit so high now and are no longer needed I simply pulled them out. This uncovered 8 more holes in the bottom for even better airflow into the case and gives a cleaner look as well!

Now my Ouya has more internal airflow, increased airflow into the bottom of the case, less to interfere with wireless and doesn't look too shabby for it either, IMO.

This mod seems pretty accessible to me so I wanted to post it.
One can easily leave the internal weights in place and use any handy disk that fits on the bottom and gives a slight lift for better airflow/cooling.
Double-sided tape and Velcro are easy to get too.

I have a Noctua fan upgrade on the way which will top off my modest airflow/cooling related mods for now.

http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140130124435972_zpsup0mp7ui.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140130124435972_zpsup0mp7ui.jpg.html)
http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140201142322171_zpswzdewjvl.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140201142322171_zpswzdewjvl.jpg.html)
http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140201084806088_zpsezmzzcsh.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140201084806088_zpsezmzzcsh.jpg.html)
http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140201084305965_zpsmzq07hkm.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140201084305965_zpsmzq07hkm.jpg.html)

UPDATE: Fan Mod pics!
The fan arrived today just after this post so I'm going to tack this on:
The fan for those new to this mod:
the mod, for those new to this mod:
The pics:

http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140201142422149_zpshmeo6tbj.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140201142422149_zpshmeo6tbj.jpg.html)
http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140201142848202_zpsa2vuwn2r.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140201142848202_zpsa2vuwn2r.jpg.html)
http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140201144406410_zpsplxy1uiz.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140201144406410_zpsplxy1uiz.jpg.html)
http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140201144727929_zpsbe1m5svb.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140201144727929_zpsbe1m5svb.jpg.html)
http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140201144849165_zpsx7oja7ru.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140201144849165_zpsx7oja7ru.jpg.html)
http://i427.photobucket.com/albums/pp353/strider_mt2k/Ouya%20Mods/CameraZOOM-20140201084249393_zpsc9gvg5ok.jpg (http://s427.photobucket.com/user/strider_mt2k/media/Ouya%20Mods/CameraZOOM-20140201084249393_zpsc9gvg5ok.jpg.html)

02-01-2014, 11:57 PM
very nice.

02-03-2014, 06:29 PM
very clean :love-struck: great job!

Michael Thompson
02-09-2014, 11:49 AM
Thank you!

I just got an additional cooling boost thanks to a great idea by forum member Farm Peeps who added some stick-on solid copper heat sinks to a couple of the other ICs as well.
He also super-sized the main SOC heat sink for super badass cooling!

02-14-2014, 02:11 AM
I have a Noctua fan upgrade on the way which will top off my modest airflow/cooling related mods for now.

What's the diff between the Noctua fan and the normal one? They look the same. Just sound and speed?

Michael Thompson
02-15-2014, 08:42 PM
What's the diff between the Noctua fan and the normal one? They look the same. Just sound and speed?

I got mine for silent running. Noctua would have you believe all kinds of tings about their fan designs. -some of them may even be true.

04-17-2014, 08:01 PM
Awesome work, I was just wondering the OD and ID of that ring from what it seems to be a flat industrial washer? I'm a bit lost in the djungle of measurements. Thanks! (:

08-03-2014, 11:10 PM