title: Illegal hardware instruction when trying to import tensorflow
body: <p>I just installed tensorflow using the instructions for the <code>virtualenv</code> method. The installation process went smoothly, so I don't think there was any problem there. After installation I proceeded to try and import it to validate that everything is ok, and I got the following message:</p>
  
  <pre><code>[1]    4492 illegal hardware instruction (core dumped)  python
  </code></pre>
  
  <p>This happened after I use the following command using th python interactive console:</p>
  
  <pre><code>import tensorflow as tf
  </code></pre>
  
  <p>I tried using the link with pip to reinstall it, but no success.</p>
  
  <p>I have created the virtualenv with:</p>
  
  <pre><code>python3.6 -m venv venv
  </code></pre>
  
  <p>After this didn't work (as in it generated the same error) I tried with:</p>
  
  <pre><code>virtualenv --system-site-packages -p python3.6 venv
  </code></pre>
  
  <p>I got the same result.</p>
  
  <p>The command I used to install tensorflow was:</p>
  
  <pre><code>pip install tensorflow
  </code></pre>
  
  <p>As you can see, I intend to install the CPU-only version.</p>
  
  <p>I read some think about other frameworks and technologies that show this message em the hardware does not have the instruction implemented, so there's nothing to do about that except getting new hardware.</p>
  
  <p>Is there any way to fix this issue? I already tried some different installation methods, but none of then seen to work</p>
  
  <p>As for the system specifications:</p>
  
  <pre><code>OS = Ubuntu 16.04 x64 LTS
  Python = Python 3.6
  pip version = 9.0.1
  tensorflow version = TensorFlow 1.6.0
  CPU = Intel Core 2 Quad Q6600  @2.40GHz
  </code></pre>
  
  <p>OBS: I do have a GPU on this machine, but I don't think that tensorflow will run on it, since it is kind of old. It's a Nvidia 8800 GTS 512.</p>
  
  <p>I appreciate any help, and if there's any missing info, please let me know.</p>