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Uzi1994

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

5 minutes ago, Uzi1994 said:

you mean to say that you have connected all four fans using splitter on a single header of your motherboard?

You can do 4, or more depending on the total amps being pulled from the header.  TYPICALLY (each mobo can be different) fan headers are rated at .8-1.2 amps.  So 1.0 amps is safe to assume imho.

 

Most fans in PC cases (almost = but its easier to google to be sure) take up to .25 amps. 

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I ran two Corsair (non led) 120MM with a splitter off one header no problem.

Beyond that, you might consider a powered fan splitter. It will have either molex or sata power and only use a fan header for the speeds.


Thanks!

 

Chris R.

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1 minute ago, Uzi1994 said:

it is mentioned on fan 0.37

Doesn't really matter. You won't hit safety current and even with two fans running at safety current, you are still well within spec for the MB connector. Go ahead and use a splitter.


CPU i7 8700k MB  Asrock Z370 Killer SLI/ac GPU EVGA GTX1060 6 GB RAM 16GB DDR4 Gskill Ripjaw 3200 Mhz PSU EVGA SuperNova 750 G1+Storage 1x1TB WD Blue + 250GB WD Blue M.2 CASE Fractal design define C

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Posted · Original PosterOP
1 minute ago, Rex_G said:

Doesn't really matter. You won't hit safety current and even with two fans running at safety current, you are still well within spec for the MB connector. Go ahead and use a splitter.

ok bro thanks for your help :)

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Posted · Original PosterOP
5 minutes ago, Chris_R. said:

I ran two Corsair (non led) 120MM with a splitter off one header no problem.

Beyond that, you might consider a powered fan splitter. It will have either molex or sata power and only use a fan header for the speeds. 

cant find that in shops , looks like to import from China :D

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3 minutes ago, Uzi1994 said:

cant find that in shops , looks like to import from China :D

I think he is referring to that 

https://www.amazon.com/SilverStone-System-Cables-Black-CPF04/dp/B00VNW556I/ref=sr_1_4?s=electronics&ie=UTF8&qid=1549902607&sr=1-4&keywords=fan+splitter


CPU i7 8700k MB  Asrock Z370 Killer SLI/ac GPU EVGA GTX1060 6 GB RAM 16GB DDR4 Gskill Ripjaw 3200 Mhz PSU EVGA SuperNova 750 G1+Storage 1x1TB WD Blue + 250GB WD Blue M.2 CASE Fractal design define C

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1 hour ago, Uzi1994 said:

i have this one . can i use it? well i cant control the speed from that fan hub.

No, just go with the splitter for now.Should be more than sufficient. If you decide to add more fan then use the hub.


CPU i7 8700k MB  Asrock Z370 Killer SLI/ac GPU EVGA GTX1060 6 GB RAM 16GB DDR4 Gskill Ripjaw 3200 Mhz PSU EVGA SuperNova 750 G1+Storage 1x1TB WD Blue + 250GB WD Blue M.2 CASE Fractal design define C

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Posted · Original PosterOP
23 hours ago, Rex_G said:

No, just go with the splitter for now.Should be more than sufficient. If you decide to add more fan then use the hub.

yes i have connected two fans by a sleeved cable splitter in one header i.e in Chassis fan header.

 

it runs fine , i can control speed in both fans.

 

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I only run 3 fans per header, I use a sata or molex powered splitter for my 10 fan splitter.


My PC: ASUS M5A99FX PRO r2.0, AMD FX-8350, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (4x4) Corsair Vengeance DDR3, Corsair HX850 PSU, Corsair H100i GTX 240mm AIO cooler, 500gb Samsung 840 EVO SSD, 2x 340gb Seagate Mech Drives, CoolerMaster HAF XM Case

Wifes PC: ASUS B350-PRIME, Ryzen 7 1700, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (2x8) Patriot Viper DDR4 2133, ANTEC Earthwatts 750w PSU, MasterLiquid Lite 120 AIO cooler in Push/Pull config as rear exhaust, 250gb Samsung 850 Evo SSD, Patriot Burst 240gb SSD, 640gb WD Blue 7200 RPM Mech drive, Rosewill Nautilus 1.0 Case

Media Center: HP Pro 6300 MT, i5-3470, Sapphire HD 7750 1gb GPU, 8 gb (4x2) Gskill Ripjaws DDR3, Lite On 320w PSU, Stock HP Cooler, 60gb Patriot SSD boot drive, 1tb WD 7200 RPM Mechanical drive, 500gb Toshiba 7200 RPM Mech Drive with Win 7, Rosewill 4x External 1x Internal USB PCI hub, ASUS AC55BT wifi adapter, LG Blu Ray/M-Disc/DVD/CD Player/Burner, LG DVD/CD Player/Burner, 3.5" Media Card Reader (about to do a complete overhaul on the HTPC, build post incoming....loop, GPU upgrade etc!)

A couple laptops and tablets around the house

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Posted · Original PosterOP
4 minutes ago, Tristerin said:

I only run 3 fans per header, I use a sata or molex powered splitter for my 10 fan splitter.

thats good . thanks for suggestion :)

 

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Posted · Original PosterOP
6 minutes ago, EspinalAndres said:

I have four 120mm fans (3 with led and 1 rgb) out of a single connector with a splitter on a H310 board, no problemo.

you mean to say that you have connected all four fans using splitter on a single header of your motherboard?

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Posted · Best Answer
5 minutes ago, Uzi1994 said:

you mean to say that you have connected all four fans using splitter on a single header of your motherboard?

You can do 4, or more depending on the total amps being pulled from the header.  TYPICALLY (each mobo can be different) fan headers are rated at .8-1.2 amps.  So 1.0 amps is safe to assume imho.

 

Most fans in PC cases (almost = but its easier to google to be sure) take up to .25 amps. 


My PC: ASUS M5A99FX PRO r2.0, AMD FX-8350, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (4x4) Corsair Vengeance DDR3, Corsair HX850 PSU, Corsair H100i GTX 240mm AIO cooler, 500gb Samsung 840 EVO SSD, 2x 340gb Seagate Mech Drives, CoolerMaster HAF XM Case

Wifes PC: ASUS B350-PRIME, Ryzen 7 1700, Sapphire R9 Fury Tri-X Nitro 4gb HBM, 16gb (2x8) Patriot Viper DDR4 2133, ANTEC Earthwatts 750w PSU, MasterLiquid Lite 120 AIO cooler in Push/Pull config as rear exhaust, 250gb Samsung 850 Evo SSD, Patriot Burst 240gb SSD, 640gb WD Blue 7200 RPM Mech drive, Rosewill Nautilus 1.0 Case

Media Center: HP Pro 6300 MT, i5-3470, Sapphire HD 7750 1gb GPU, 8 gb (4x2) Gskill Ripjaws DDR3, Lite On 320w PSU, Stock HP Cooler, 60gb Patriot SSD boot drive, 1tb WD 7200 RPM Mechanical drive, 500gb Toshiba 7200 RPM Mech Drive with Win 7, Rosewill 4x External 1x Internal USB PCI hub, ASUS AC55BT wifi adapter, LG Blu Ray/M-Disc/DVD/CD Player/Burner, LG DVD/CD Player/Burner, 3.5" Media Card Reader (about to do a complete overhaul on the HTPC, build post incoming....loop, GPU upgrade etc!)

A couple laptops and tablets around the house

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On 2/12/2019 at 1:27 PM, Uzi1994 said:

you mean to say that you have connected all four fans using splitter on a single header of your motherboard?

yes, four fans on a single connector using a splitter.

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