Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have a new desktop PC with Intel Core 2 duo. I now just buy a cabinet fan and I need to place it on the back side of the cabinet just below the SMPS. How can I place it there with appropriate position? What I mean is I need the direction which the fan should rotate so that there will be a cooling inside the cabinet..

share|improve this question
    
I don't understand this question. Normally, as case designed for a fan under the power supply has a fan grill w/ screw holes to hold the fan in place. So, normally, the answer is "by screwing it in". But you must be asking something else? –  derobert Jul 20 '09 at 7:55
    
I need the rotation direction so that it can cool the inside of cabinet? –  Sauron Jul 20 '09 at 8:07
    
Can't you plug it in and see which way the air flows? –  Travis Jul 27 '09 at 20:44

2 Answers 2

up vote 3 down vote accepted

Some references.


You are interested in the direction of the air flow (push-in or pull-out).

  • The usual thing to do is pull-out.
  • It helps if there is a side-grill on the cabinet, a little below the processor location and the fan actually is aligned close to the processor (usually the case with a good cabinet & motherboard combination).
    In this setup, the cabinet fan creates a good air flow around the processor sink+fan.
  • Sometimes, the processor comes with its own 'vent' through a side-grill, that has a 'funnel' path from the processor sink to outside. With such setups, a side fan only introduces unwanted turbulence around the processor fan. Care is required in such setups.
share|improve this answer

Generally speaking airflow in a PC should be front-to-back.

The 80mm and 120mm fans you get in a PC typically have the direction of airflow stamped on them in the form of a little arrow, so you know which way around to install them.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.