Re the Deletion, [because @gparyani has insisted on explanations][1] from those who voted for close via PMs:

For the reasons detailed in comments and others this question should be deleted, but additionally:
 - **It will not be answered to OPs satisfaction**, though the correct answer has already been given by several, and first by the very first comment made on that question.
 - **Its continued existence on the site is just clutter** and may dissuade future visitors who have more specific and clear (probably mostly simpler, but I don't pretend to know what every possible question about case airflow could be or whether it can be presented in a way so as to be on topic here).

I do not see value in the question remaining, and light of SU's overall goal of attempting to be a compendium of good questions and good answers, this question which cannot be answered well (taking a broad definition of "well" here, see above) should be deleted.


  [1]: https://meta.superuser.com/questions/15160/i-genuinely-dont-understand-why-this-question-was-deleted-when-i-asked-for-it-t?noredirect=1#comment44973_15160