user4138: How to open a Butterfly 5GH/s miner and replace the fan? I don't see any screws at the outside. 

user25146: Remove the paddings from bottom and open screws under them.

4138: <p>How to open a <a href="https://products.butterflylabs.com/5-gh-s-bitcoin-miner.html" rel="nofollow">Butterfly 5GH/s miner</a> and replace the fan? I don't see any screws at the outside. </p>
 25146: <p>Remove the paddings from bottom and open screws under them.</p>
