Computer Fan Intake Vs Exhaust
Modern pc fans are often highly engineered.
Computer fan intake vs exhaust. Front back blowhole and 2 psu fans exaust. A single exhaust fan with no intake fan is negative pressure. So there is two intake 120mm 60 70cfm on the front and 133cfm exhaust fan on the back and the 230mm exhaust fan on top my cpu cooler is the xigmatek dark knight my system stays nice and cool even in gaming and video encoding. But i mod the case and changed all the fans.
Your first picture is wrong fan intake is the open side on 99 of fans. Your negative pressure graphic is not likely as you would never exhaust out the front. I did install grilles tho. I have 2 120mm holes in my side panel for 2 120mm intake fans but the exaust fans suck so much air thru those 2 openings that i dont even need to install fans there.
A front intake fan provides some help but the cpu continues to output heat saturating the area near the cpu. This is called a computer s airflow and is a great way to make the most of your system s fans. The intake exhaust direction should go front to back and bottom to top. What we have is a simple intake extract exhaust system where a computer is consistently fed cool air while heated air is expelled.
The pressure delta. I cant quite describe it like an x the other side is open the side with the x goes from corner to corner is the side where the air goes out. A single intake fan with no exhaust fan is positive pressure. If you take a look at the fan one side has a bracket err.
Generally it s best to have as few obstacles as possible between the intake fans on the front of the case and the exhaust fans on the rear and top of the case. Manage your cables and other obstructions. Actually im using all exaust fans. The ps exhaust fan is insufficient to properly cool this area.
So now it depends on how you install it in any case just reverse it after testing if its not what you want. A fan can either be intake or exhaust depends on how you use it. Few pc components are so critical to the performance of your computer yet so inexpensive than your pc fans. To the tech cave.
The heated air is pushed out of the computer via exhaust fans. But don t let the low cost fool you. Running prime95 for 2 hours and cpu never went past 70c.