« Reply #5 on: January 31, 2014, 02:13:33 pm »
On all fans the open side is the intake and the support side is exhaust. If you hold it in your hand without getting your fingers into the fan part.
That way you can tell which way the fan blows. Plus you can plug them in even when the computer is on.
Plus the fan will only plug in one way too. If you turn the plug around. You could burn up the fan other the board that is why they make the plug that way.
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