Joined
·
1,707 Posts
I was wondering if anyone could please give me some insight. I do not want this turn into a positive vs negative pressure discussion thread. What I am curious about is a few things regarding those topics. My understanding is balanced in the best option for case airflow. Wouldn't this creative stagnant airflow though ? I understand the difference between both topics, but read something that confused me. Im pulling this from the extreme tech air flow article written in 2012.
"In a positive pressure configuration, the CFM from intake fans exceeds the CFM of the exhaust fans."
"For negative, the CFM from the exhaust fans exceeds the CFM of the intake fans, creating a partial vacuum inside the case."
If this is true my question is, if I balance ( meaning same number of intake vs exhaust) out intake vs exhaust, I have generally always bought the same case fans for my entire case, meaning same speeds and cfm. From what I am seeing above, wouldn't I want even if I have balanced intake vs exhaust to have slower intake fans (cfm wise) if I want better cooling by negative pressure. I read in this article you will get more dust, but have better cooling for negative pressure.
So should I depending balanced or not and depending on the pressure I choose lower or higher cfm fans for my case. Does speed matter like cfm ? Is slower speed have lower cfm ?
"In a positive pressure configuration, the CFM from intake fans exceeds the CFM of the exhaust fans."
"For negative, the CFM from the exhaust fans exceeds the CFM of the intake fans, creating a partial vacuum inside the case."
If this is true my question is, if I balance ( meaning same number of intake vs exhaust) out intake vs exhaust, I have generally always bought the same case fans for my entire case, meaning same speeds and cfm. From what I am seeing above, wouldn't I want even if I have balanced intake vs exhaust to have slower intake fans (cfm wise) if I want better cooling by negative pressure. I read in this article you will get more dust, but have better cooling for negative pressure.
So should I depending balanced or not and depending on the pressure I choose lower or higher cfm fans for my case. Does speed matter like cfm ? Is slower speed have lower cfm ?