discussion 1A/12W rated fan header

[fightingfi]

Im looking at these case fans for my pc, https://www.amazon.com/ARCTIC-P14-Max-High-Performance-Controlled/dp/B09VH2HXM1?dib=eyJ2IjoiMSJ9.gRIpzAyokDMH7qNhTAS8H4HfzmQ17XHScM-LBpGaU0b8HckDsrcq34gcpw_XkQVIXRNItkz8V74tiTs9C10A2De7yPRZz_u1BJ3YmBXZOs0ZE5QnV_MzwwkuYSkWTr9j7BYKLsoa07B85Nwp7sfYEWZ5Sd_H_jRHhMou6iBM_4ldhJkOLkmvOcwogHdf6FxfKQhMMzT6Ji7vQss66FzJewu6_-mRmAgSgabYRWs2nb0.x_AAsQM-r9rYAJzbI29fvsbLcj2ie_3ifwq4yn92H7k&dib_tag=se&keywords=140mm+Case+Fan+High+Flow&qid=1745869727&sr=8-4&th=1

Can i use a Y splitter on the front 3 of my case blowing inwards or do they have to be all plugged onto the mobo itself?

 

[Izerous]

It varies based on motherboard spec about how much amperage a fan header can handle. I had a set of TK-123 fans that were featured by Dmitri years ago and they drew 2A each and no motherboard at the time was meant for that kind of power draw. Even today I think only pump headers if there is one on your MB is rated for something that high.

Worst case scenario there are boards that can run 8-9 fans off a single MB header but they take power from the PSU directly not from the MB.

https://www.amazon.ca/Electop-Chassis-Cooling-Molex-Controller/dp/B071KNT7FW/ref=asc_df_B071KNT7FW

board hooks to MB, power comes from molex, special color connection is the only one that reports fan speed. Though only 1 fan reporting speed happens with splitter cables as well.


Reguardless need to check power capacity for your specific board.

 

[fightingfi]

Wow all that for some cans fans LOL thanks for the Info !

 

[Izerous]

Fan is rated at 0.35A ... x3 = 1.05A... if your fan header is only rated at exactly 1A it should be withing margin of error but the initial spike of all 3 spinning up at once might be just asking for random burnt out header.

 

[Marzipan]

aside from managing your fans RPM and RGB, it's usually much better to run them from a 4pin Molex. fans can inadvertently draw too much power from the mobo and that causes problems.