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ASUS Prime z390-P Fan headers amp limit?

DazzaBear
By DazzaBear
in Cooling
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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.

My Build, v2.1 --- CPU: i7-8700K @ 5.2GHz/1.288v || MoBo: Asus ROG STRIX Z390-E Gaming || RAM: 4x4GB G.SKILL Ripjaws 4 2666 14-14-14-33 || Cooler: Custom Loop || GPU: EVGA GTX 1080 Ti SC Black, on water || PSU: EVGA G2 850W || Case: Corsair 450D || SSD: 850 Evo 250GB, Intel 660p 2TB || Storage: WD Blue 2TB || G502 & Glorious PCGR Fully Custom 80% Keyboard || MX34VQ, PG278Q, PB278Q

Audio --- Headphones: Massdrop x Sennheiser HD 6XX || Amp: Schiit Audio Magni 3 || DAC: Schiit Audio Modi 3 || Mic: Blue Yeti

 

[Under Construction]

 

My Truck --- 2002 F-350 7.3 Powerstroke || 6-speed

My Car --- 2006 Mustang GT || 5-speed || BBK LTs, O/R X, MBRP Cat-back || BBK Lowering Springs, LCAs || 2007 GT500 wheels w/ 245s/285s

 

The Experiment --- CPU: i5-3570K @ 4.0 GHz || MoBo: Asus P8Z77-V LK || RAM: 16GB Corsair 1600 4x4 || Cooler: CM Hyper 212 Evo || GPUs: Asus GTX 750 Ti, || PSU: Corsair TX750M Gold || Case: Thermaltake Core G21 TG || SSD: 840 Pro 128GB || HDD: Seagate Barracuda 2TB

 

R.I.P. Asus X99-A motherboard, April 2016 - October 2018, may you rest in peace. 5820K, if I ever buy you a new board, it'll be a good one.

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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).

^^^^ That's my post ^^^^
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