<pre>
'modules'=>array(
...
'yiiadmin'=>array(
'password'=>'YOU PASS HERE',
'registerModels'=>array(
//'application.models.Contests',
//'application.models.BlogPosts',
//'application.models.*',
),
//'excludeModels'=>array(),
),
),
...
</pre>
</li>
<li>Open in browser http://your-project/index.php/yiiadmin and enter your password.</li>
Example model config from my testing project: