is it safe to use splitter for case fans in one single header?

[Uzi1994]

hey guys , i want to run 2 fans on one single motherboard header . Fans amperage combine is (2 x 0.37amp ) . can i go for a splitter or should i stick to psu molex cable running my fans at full speed.

I have ASUS Z370 H gaming motherboard. Is it safe to use a splitter running two fans on one header?

 

Thanks.

[Uzi1994]

all fans are 120mm

[cluelessgenius]

as long as its not like 12 of them or something you should be fine with any decent board.

[Uzi1994]

1 minute ago, cluelessgenius said:

as long as its not like 12 of them or something you should be fine with any decent board.

seriously? it is just 2 fans to run.

how much amperage of a single header of motherboard possess?

[cluelessgenius]

really the rampup mperage is more the problem once they are running the consumsion usually goes way down also if ou were to connect lets say 12 of them to a single connector it wouldnt immidiatly start going up in flames either youll just see the fans struggling to startup cause they arent getting anough juice

[Uzi1994]

2 minutes ago, cluelessgenius said:

really the rampup mperage is more the problem once they are running the consumsion usually goes way down also if ou were to connect lets say 12 of them to a single connector it wouldnt immidiatly start going up in flames either youll just see the fans struggling to startup cause they arent getting anough juice

 

[cluelessgenius]

Just now, Uzi1994 said:

seriously? it is just 2 fans to run.

how much amperage of a single header of motherboard possess?

doesnt really matter itll give what it has and if youre asking more the fans just wont turn on  i think i had 5 running at one point on my old board. not recommending it but its not gonna explode.

right now my m-itx board only has 1 case fan connector so im using a sata hub so it aonly takes the signal from the board and the power directly from sata. but im also running 9 fans.soo...edge case i guess?

[Uzi1994]

3 minutes ago, cluelessgenius said:

really the rampup mperage is more the problem once they are running the consumsion usually goes way down also if ou were to connect lets say 12 of them to a single connector it wouldnt immidiatly start going up in flames either youll just see the fans struggling to startup cause they arent getting anough juice

my mobo manual says that it possess 1 AMP on a header.

[Cyberspirit]

Yeah, you'll be fine. I run dual fans on every header on my MSI b450m Mortar without trouble.

 

I believe it's generally 1 amp for every fan header but, please correct me if I'm wrong on that.

[cluelessgenius]

1 minute ago, Uzi1994 said:

my mobo manual says that it possess 1 AMP on a header.

what fans are  you running

[Uzi1994]

1 minute ago, cluelessgenius said:

what fans are  you running

http://www.coolermaster.com/cooling/case-fan/masterfan-mf120l-blue/

[Constantin]

Yes you are totally fine with 2 fans

[Rex_G]

1 minute ago, Uzi1994 said:

http://www.coolermaster.com/cooling/case-fan/masterfan-mf120l-blue/

You should be fine. Fan draws 0.16 A max current, so for 2 fans 0.32 A max. Your connector can handle up to 1 A

[Origami Cactus]

 

1 minute ago, Uzi1994 said:

http://www.coolermaster.com/cooling/case-fan/masterfan-mf120l-blue/

Those are  0.16 A, so you could run many many of them, but startup voltage is more important.

So i wouldn't put over 5 of them on a single header

[Uzi1994]

3 minutes ago, Origami Cactus said:

 

Those are  0.16 A, so you could run many many of them, but startup voltage is more important.

So i wouldn't put over 5 of them on a single header

 

4 minutes ago, Rex_G said:

You should be fine. Fan draws 0.16 A max current, so for 2 fans 0.32 A max. Your connector can handle up to 1 A 

 

[Uzi1994]

Just now, Uzi1994 said:

 

 

but it is mentioned as 0.37 amp Safety current? what is safety current? can anyone tell?

[Origami Cactus]

3 minutes ago, Uzi1994 said:

but it is mentioned as 0.37 amp Safety current? what is safety current? can anyone tell?

Maybe that is the max current that the fan will draw from any current point, so i think that is the startup voltage, because that is the highest current for a peak moment. But 2 fans is still fine.

[Cyberspirit]

3 minutes ago, Uzi1994 said:

but it is mentioned as 0.37 amp Safety current? what is safety current? can anyone tell?

I'm guessing that's the max safe amperage it can take.

[Uzi1994]

12 minutes ago, Cyberspirit said:

Yeah, you'll be fine. I run dual fans on every header on my MSI b450m Mortar without trouble.

 

I believe it's generally 1 amp for every fan header but, please correct me if I'm wrong on that.

it is just mentioned only for cpu_fan has 1 amp (12W) but not for other fan headers like for chassis fan header , aio pump header or cpu_opt fan header.

[cluelessgenius]

Honestly just connect them and if they spin up youre good. again unless youre running a crazy amount of them its ffine and not worth overthinking like this

[Uzi1994]

2 minutes ago, Origami Cactus said:

Maybe that is the max current that the fan will draw from any current point, so i think that is the startup voltage, because that is the highest current for a peak moment. But 2 fans is still fine.

 

1 minute ago, Cyberspirit said:

I'm guessing that's the max safe amperage it can take.

that make sense

[Uzi1994]

3 minutes ago, cluelessgenius said:

Honestly just connect them and if they spin up youre good. again unless youre running a crazy amount of them its ffine and not worth overthinking like this

Nope , just two only.

I asked just for the confirmation from the experts on this page .

[Rex_G]

2 minutes ago, Uzi1994 said:

but it is mentioned as 0.37 amp Safety current? what is safety current? can anyone tell?

oh on the web link it said 0.16A safety current. Safety current for a motor is the current after which the Motor will start smoking/shut down (if there is a mechanism to cut off the current). You should be fine with two fans on one connector.

[JammyCreedog]

A 1-2 pwm fan splitter will cause ZERO harm to your motherboard and fans. The more important consideration is that beyond 3/4 fans, any more have a negligible effect on in case air temps. To see any more reduction in hardware temps, you will need to adjust the ambient temp of the air in your room.

[Uzi1994]

5 minutes ago, Rex_G said:

oh on the web link it said 0.16A safety current. Safety current for a motor is the current after which the Motor will start smoking/shut down (if there is a mechanism to cut off the current). You should be fine with two fans on one connector.