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DazzaBear

ASUS Prime z390-P Fan headers amp limit?

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Posted · Original PosterOP

Anyone know the general amount of amps a fan header can take? Like if I were to put 3 fans (2 of them are 0.42A and one is 0.18A) into my CHA1 fan header. Would it run properly?

 

Also if you put in more fans than the header can take. Can it damage the mobo or the fan?

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3 fan splitters should be fine for any motherboard. Once you get to a 4 fan splitter, they usually have separate molex power.


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That should be fine.

Boards from Asus and most manufacturers going back for at least the past several years should support at least 1A per header unless otherwise stated. Their manuals like many are often incomplete which mentions 1A for the cpu_fan header. If you look at manuals for similar Asus boards, you'll eventually come across one that lists 1A for most fan headers besides pump / aio headers that can support >2A.


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Usually its 1A unless otherwise stated (high amp headers from 2A to 5A).


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